FMS FCX18 II Ford F-100 vs FCX18 K10 — New Chassis, BATRAZZI Upgrades & Build Guide

The FMS FCX18 II Ford F-100 looks at first like another classic American pickup joining the increasingly crowded 1:18 scale crawler market. Look underneath the hard body, however, and the more important story becomes clear: this is the launch platform for the second-generation FCX18 chassis.

That makes the new Ford much more interesting than a simple body variation of the established FCX18 Chevrolet K10.

The F-100 keeps several ideas that made the original FCX18 platform attractive — a 199mm wheelbase, two-speed transmission, 180 brushed motor, oil-filled suspension and detailed licensed body — but reorganises the chassis around a lower centre of gravity, solid axles, a reverse transmission layout, multi-position shock mounting and a magnetic quick-release body system with integrated lighting contacts.

At the same time, the older FCX18S Chevrolet K10 remains highly relevant. Its standard portal axles, larger tyres, greater ground clearance and mature FMS, FairRC and BATRAZZI upgrade ecosystem give it strengths that the newer architecture does not automatically replace.

This guide compares both approaches and then looks beyond the stock trucks into FMS replacement parts, BATRAZZI FCX18 II upgrades, wheels, tyres, steering components, suspension tuning, portal-axle options, FairRC K10 builds and the wider possibilities for developing either truck into a long-term scale crawler project.

If the wider FCX18 ecosystem is still part of the buying decision, the FMS FCX18 Buying Guide compares the three main routes: starting with a stock FMS crawler, choosing a completed FairRC Mod RTR or developing the platform progressively with BATRAZZI upgrades.

View the FMS FCX18 II Ford F-100 at FMS Hobby

Quick Verdict — FCX18 II F-100 or FCX18 K10?

Choose the new FCX18 II Ford F-100 if the priority is the newest FMS 1:18 chassis architecture, a lower centre of gravity, easier body access, greater suspension-adjustment potential and a platform already receiving dedicated second-generation BATRAZZI upgrades.

Choose the FCX18S Chevrolet K10 V2 if the priority is stock portal-axle ground clearance, larger factory tyres, a very mature parts ecosystem and the enormous range of K10-specific body conversions, FairRC Mods and scale accessories already available.

Choose the F-100 as a new build platform if experimenting with the FCX18 II chassis itself is part of the attraction.

Choose the K10 as a custom scale-truck platform if flatbeds, stepside bodies, camper shells, larger wheel-and-tyre setups and existing FairRC Mod culture are already part of the intended project.

Neither truck should automatically be declared the better crawler from specifications alone. Their stock geometry is sufficiently different that terrain, tyre choice, weight distribution and eventual upgrades will have a major influence on the result.

FMS FCX18 II F-100 vs FCX18 K10 — Key Differences

Specification	FCX18 II Ford F-100	FCX18S Chevrolet K10 V2
Scale	1:18	1:18
Wheelbase	199mm	199mm
Overall size	330 × 145 × 147mm	336 × 139 × 139mm
Axle layout	Solid axles stock; optional portal conversions available	Portal axles stock
Ground clearance	31mm	40mm
Tyre size	58 × 19mm	66 × 22mm
Approach angle	59°	70°
Departure angle	53°	33°
Motor	180 brushed	180 brushed
Transmission	Two-speed, reverse transmission design	Two-speed
Battery	2S 7.4V 900mAh LiPo	7.4V 900mAh
Body removal	11-magnet quick-release system with lighting contacts	Conventional first-generation FCX18 arrangement
Chassis philosophy	Second-generation LCG architecture	Original FCX18 crawling architecture

The Big Change — FCX18 II Is a New Chassis, Not Just a New Body

The most important thing to understand about the Ford F-100 is the meaning of the Roman numeral in its name.

FCX18 II represents the second generation of the platform.

The wheelbase remains at 199mm, which preserves the general 1:18 footprint familiar from trucks such as the K10, but FMS has reorganised several important mechanical elements.

The motor and transmission sit lower in the chassis. Solid axles replace the previous K10's stock portal-axle arrangement. Shock positioning becomes more adjustable. The transmission architecture changes. Body mounting becomes magnetic. The lighting system receives electrical power through magnetic contacts rather than requiring the body wiring to be disconnected during routine access.

That is a much more significant evolution than simply placing another licensed pickup body on the original FCX18 frame.

Explore the FMS FCX18 II Platform

Ford F-100 Hard Body — Scale Character First

The new truck uses an officially licensed Ford F-100 hard body rather than a generic pickup shell.

FMS has included Ford badging, grille detail, bumpers, door handles, roll-bar elements and a moulded interior with steering wheel and textured seating.

This matters because the strongest small-scale crawlers are often the ones that work visually before they even move.

A classic pickup body naturally lends itself to trail scenes, workshop photography, farm environments, recovery builds, mild customs and period-inspired scale modifications.

The F-100 also gives the new chassis a very different personality from the Chevrolet K10 without abandoning the classic American-truck theme that has worked particularly well for FCX18.

Official BFGoodrich KO3 Tyres

FMS equips the F-100 with officially licensed BFGoodrich KO3-pattern crawler tyres.

The stock tyres measure approximately 58 × 19mm, making them significantly smaller than the 66 × 22mm tyres listed for the FCX18S K10.

This is not necessarily a disadvantage.

Smaller tyres help keep rotating mass, effective gearing and the overall vehicle stance under control. They also complement the FCX18 II's lower-centre-of-gravity philosophy.

The trade-off is obvious: the K10 starts with more tyre diameter and more clearance beneath the chassis.

That creates an immediate tuning question for future F-100 owners. Should the truck remain close to its stock scale proportions, or should larger BATRAZZI tyres be used to regain some clearance and create a more aggressive crawler stance?

LCG Chassis vs Portal Clearance

This is probably the most interesting technical comparison between the F-100 and the K10.

The previous K10 uses portal axles as standard. Portal gearing moves the axle centreline relative to the wheel centre, helping increase clearance beneath the differential housing.

The FCX18 II F-100 returns to a solid-axle stock layout and instead puts more emphasis on lowering mass within the chassis.

That gives the two trucks different priorities.

K10 Approach

40mm stated ground clearance
66mm stock tyres
Portal axles as standard
70° approach angle

FCX18 II F-100 Approach

31mm stated ground clearance
58mm stock tyres
Solid axles as standard
Lower motor and transmission position
59° approach angle
53° departure angle

The K10 therefore has a clear stock advantage in static clearance figures.

The F-100 answers with a lower-centre-of-gravity architecture intended to improve body control and climbing stability.

On side slopes, steep climbs and situations where rollover resistance matters, the position of mass can be just as important as the number of millimetres under the axle.

On deeply broken rocks where differential clearance determines whether the vehicle hangs up, portal height can be extremely valuable.

This is why a specification table alone cannot declare one truck the technical winner.

This balance between clearance, centre of gravity, tyre size and believable vehicle behaviour is explored further in Real Scale Dynamics — RC Crawler Upgrades for Performance, Looks, Weight Balance and Realism.

And the F-100 Can Still Gain Portal Axles

The most interesting part of the FCX18 II axle strategy is that FMS has not locked the platform into one configuration.

The official parts system already includes optional FCX18 II axle assemblies covering portal configurations, differential configurations and combinations of the two.

That creates a very different upgrade philosophy from buying a crawler whose axle design is effectively fixed from the start.

An F-100 can begin as the lower solid-axle configuration and later move toward increased clearance if the terrain proves that portal axles would be useful.

This also means axle conversions should be treated as a meaningful mechanical change rather than an automatic first upgrade.

Drive the stock truck first. If differential clearance repeatedly becomes the limitation, the portal route has a clear purpose.

Find FCX18 II Replacement and Upgrade Parts at FMS Hobby

The Reverse Transmission Design Targets Torque Twist

Another significant FCX18 II change is the reverse transmission layout.

FMS states that the drivetrain is arranged so the front and rear driveshafts rotate in opposite directions, helping counteract torque-induced chassis movement.

Torque twist is particularly noticeable on small crawlers because a relatively light chassis can react visibly to drivetrain torque under load.

Reducing that reaction can help the vehicle remain more composed when crawling slowly and applying power on a climb.

It is also an example of how the FCX18 II redesign goes deeper than cosmetic changes. The engineering is being used to influence chassis behaviour rather than simply adding more metal components.

Two-Speed Transmission Remains

One of the strongest features of the established FCX family survives the transition to FCX18 II.

The F-100 retains a two-speed transmission.

FMS lists a high-gear ratio of 17.7 and a low-gear ratio of 94.2.

Low gear is intended for controlled crawling and steep terrain, while high gear gives the vehicle a more useful trail pace when moving between obstacles.

This dual personality is one of the reasons FCX18-scale trucks work well outside dedicated rock courses.

A crawler that can move slowly over technical terrain but still cruise convincingly along a path feels more like a small trail vehicle than a single-purpose obstacle machine.

For a broader look at why the FCX18 format works particularly well away from indoor obstacle courses, see Best FMS Micro Crawlers for Outdoor Trail Courses, which looks at wheelbase, drivetrain, chassis construction and the characteristics that matter on gravel, roots and uneven terrain.

The Magnetic Body System Could Change How FCX18 Builds Are Used

Body access is usually a boring part of RC ownership until it becomes inconvenient.

The FCX18 II makes it genuinely interesting.

FMS uses eleven magnets to secure the Ford body. More importantly, integrated magnetic electrical contacts transfer power to the body-mounted lighting system.

That means the shell can be removed for battery access or maintenance without manually unplugging lighting wires.

The advantage becomes even more interesting if several compatible bodies are owned.

FMS states that different painted FCX18 II body shells can be exchanged in seconds, with the electrical contact system reconnecting the lights automatically when the new body is installed.

This turns body swapping from a workshop operation into something much closer to a normal part of using the vehicle.

Full Lighting Without a Wiring Tangle

The F-100 has a dedicated lighting system with headlights, taillights, turn signals and roof-mounted lighting functions.

An independent light controller separates that system from the main 2-in-1 ESC/receiver arrangement.

For scale driving and photography, lighting is not a minor feature.

A classic pickup photographed at dusk, moving through a workshop scene or sitting on a trail can gain enormous visual character from controlled headlights and marker lighting.

The magnetic body power system makes those details more practical because the scale body does not become permanently tethered to the chassis by a fragile wiring harness.

Metal Components Where They Matter

FCX18 II combines plastic structure with metal components in several mechanically important areas.

FMS lists metal chassis rails, suspension links, steering rods, bearings, geartrain components, oil-filled shock bodies and servo gears.

This does not mean every plastic component should automatically be replaced with metal.

In a crawler, selective flexibility can be useful and unnecessary metal can add weight in the wrong place.

The better approach is to identify components where additional rigidity, durability or low-mounted mass contributes to a specific objective.

That is exactly where the dedicated BATRAZZI upgrade range becomes relevant.

Multi-Position Shock Mounting Makes Suspension Tuning More Interesting

The stock FCX18 II chassis already allows different shock positions and angles.

BATRAZZI then extends that idea with an aluminium shock-tower mount set designed specifically for the second-generation platform.

The BATRAZZI front mounts provide nine shock-position holes, while the rear mounts provide eight.

Changing shock position can affect effective spring rate, body movement, articulation and ride height without replacing the entire suspension system.

This is much more useful than fitting a cosmetic aluminium part simply because it is aluminium.

View the BATRAZZI FCX18 II Aluminum Shock Tower Mount Set

FCX18 II BATRAZZI Upgrades — Where to Start

The new chassis already has a surprisingly developed upgrade ecosystem.

The useful point is not that every part should be purchased. It is that several distinct build directions are already possible.

1. BATRAZZI Cowboy Bumpers for the Ford F-100

The front and rear aluminium Cowboy bumpers are specifically designed around the FCX18 II Ford F-100 rather than being generic 1:18 parts.

They use the stock mounting locations and add a more traditional custom-truck appearance.

The front version incorporates a push-bar style structure, while the rear uses a classic step-bumper form.

This is one of the most natural upgrades for a scale-focused build because it changes both durability and visual identity without fundamentally altering the chassis.

View BATRAZZI Cowboy Bumpers for the FCX18 II Ford F-100

2. BATRAZZI Brass 7mm Wheel Hex Hubs

Brass wheel-hex components provide a way to place additional mass directly at axle height.

That location matters.

Adding weight low in the vehicle can influence stability differently from adding the same number of grams to the body, roof or cargo area.

As with all brass upgrades, more is not automatically better. The aim should be controlled weight distribution rather than simply making the truck heavy.

View BATRAZZI Brass 7mm Wheel Hex Hubs for FCX18 II

3. Brass Steering Servo Horn

The BATRAZZI brass steering servo horn is another FCX18 II-specific part.

A stronger servo-horn connection can make sense where the steering system is exposed to repeated loads from larger tyres, wedged wheels and technical crawling.

Its brass construction also adds a small amount of mass at the front of the chassis rather than high in the body.

View the BATRAZZI Brass Steering Servo Horn for FCX18 II

4. Brass Steering Servo Mount

The dedicated brass servo mount takes the same idea further by replacing the servo mounting structure with a heavier and more rigid component.

This type of upgrade is more logical when the objective is explicitly to reinforce steering and shift some weight forward and down.

View the BATRAZZI Brass Steering Servo Mount for FCX18 II

5. Aluminum Steering Links

BATRAZZI also offers an aluminium steering-link set specifically for FCX18 II.

This is a more direct mechanical upgrade than adding decorative body hardware.

Steering links experience impact and load every time a front wheel becomes trapped against an obstacle, so rigidity and joint condition directly affect steering precision.

View BATRAZZI Aluminum Steering Links for FCX18 II

Tyres May Be the Most Interesting First Performance Experiment

The stock F-100's 58mm tyres are noticeably smaller than the old K10's 66mm setup.

BATRAZZI already offers several larger tyre options that make the comparison particularly interesting.

BATRAZZI Mudboy 1.0" A/T — 62 × 26.5mm

The Mudboy 1.0" A/T measures approximately 62 × 26.5mm.

That places it between the stock F-100 tyre diameter and the larger stock K10 diameter.

For an F-100 build, this type of moderate increase is potentially more interesting than jumping immediately to the largest possible tyre.

A tyre change affects more than appearance. Diameter changes effective gearing and axle clearance. Width influences steering clearance and contact patch. Compound and tread design alter traction.

View BATRAZZI Mudboy 1.0" A/T Tyres

BATRAZZI Outrider ZR 1.2" M/T — 64 × 24.2mm

The Outrider ZR moves up again to approximately 64 × 24.2mm.

This is close to the overall diameter used on several modified K10 builds and gives a more aggressive mud-terrain appearance.

It is also large enough that body clearance, steering clearance, wheel compatibility and gearing should be considered as part of the complete setup rather than assuming that bigger automatically means better.

A larger tyre increases the effective gearing seen by the motor. It can also raise the chassis while adding rotating mass and changing the point at which the tyre contacts the body during articulation.

View BATRAZZI Outrider ZR 1.2" M/T Tyres

BATRAZZI Beadlock Wheels — Build the Wheel and Tyre as One System

Beadlock wheels make tyre experimentation considerably more practical because the tyre is mechanically retained rather than permanently glued.

BATRAZZI's 1.2-inch Revolver beadlock wheels provide one route for larger tyre builds.

Wheel choice also affects mass, offset and visual stance, so the correct wheel is not simply the one that looks best in a product photograph.

For the FCX18 II in particular, preserving the advantage of the low-centre-of-gravity chassis should remain part of the decision.

Low-mounted wheel weight can be useful. Excess rotating mass can also make the drivetrain work harder.

View BATRAZZI 1.2" Revolver Beadlock Wheels

The broader BATRAZZI Upgrades for FMS FCX18 and FCX24 guide explains how wheels, tyres, shocks and brass parts can change a small-scale crawler as a complete system rather than as isolated accessories.

Tracks — Because the FCX18 II Can Become Something Completely Different

BATRAZZI also lists dedicated track mounts for the FCX18 II platform.

These mounts are intended to allow the separate BATRAZZI all-terrain track system to be fitted to the new chassis.

Tracks are not a normal crawler upgrade in the same sense as tyres or steering links.

They fundamentally change how the vehicle interacts with soft surfaces and turn the truck into a much more specialised winter, sand or scale-project machine.

That makes them particularly interesting for a second wheel setup or a themed build rather than an automatic replacement for conventional tyres.

View BATRAZZI Track Mounts for FCX18 II

A Sensible FCX18 II Upgrade Order

The existence of a long upgrade catalogue does not mean the crawler should be dismantled on the day it arrives.

A more useful build sequence is:

Stage 1 — Drive It Stock

Learn where the truck actually struggles.

Pay attention to tyre grip, steering precision, axle clearance, body roll, breakover points and how often low and high gear are used.

Stage 2 — Tyres and Wheels

If traction is the first limitation, change the tyre before changing half the chassis.

A wheel change can then be used to control offset, beadlock compatibility and low-mounted mass.

Stage 3 — Steering

If steering flex or durability becomes noticeable, servo horn, mount and steering-link upgrades have a clear reason to exist.

Stage 4 — Suspension Geometry

Use the multiple shock positions already built into FCX18 II before assuming longer or heavier suspension components are necessary.

The BATRAZZI shock mounts expand those adjustment possibilities further.

Stage 5 — Axle Architecture

Portal axles and differential upgrades should solve a real terrain problem.

If the stock solid axles repeatedly hang on obstacles, greater portal clearance becomes easy to justify.

If the stock arrangement already works well on the intended trails, changing the axle purely because another configuration exists may add complexity without solving anything.

Stage 6 — Scale Character

Bumpers, body shells, lighting details, cargo and eventual custom parts can then create the story of the truck without confusing cosmetic changes with performance upgrades.

Why the Older Chevrolet K10 Still Matters

The arrival of FCX18 II does not make the first-generation FCX18 K10 obsolete.

In several areas, the K10 is actually the more mature platform.

It already has:

stock portal axles
larger 66mm tyres
40mm stated ground clearance
a 70° approach angle
two-speed transmission
oil-filled metal dampers
licensed Chevrolet square-body styling
a large FMS spare-parts ecosystem
years of BATRAZZI development
a particularly large FairRC modification ecosystem

For someone whose intended build is already well supported by existing K10 parts, the older truck may actually be the easier route.

View the FMS FCX18S Chevrolet K10 V2 at FMS Hobby

The FairRC Advantage — The K10 Already Has an Entire Build Culture Around It

This is where the comparison becomes bigger than FMS versus FMS.

FairRC has spent considerable time developing the original FCX18 K10 into a platform for custom Mod RTR vehicles, 3D-printed body parts and BATRAZZI-equipped builds.

The K10 has appeared in stepside configurations, flatbed builds, colour-themed Mods and trucks using larger BATRAZZI wheels and tyres.

FairRC also offers K10-specific 3D-printed components including camper shells and replacement bed structures.

This is an important advantage for anyone more interested in building a miniature custom pickup than maximising the newest chassis specification.

View the FCX18 Chevrolet K10 at FairRC

Browse FairRC FCX18 K10 Parts and Body Options

K10 Flatbeds, Campers and Stepsides Show What a Mature Platform Can Become

One of the best arguments for the K10 is that its modification ecosystem has moved far beyond conventional performance parts.

A truck can become a different type of vehicle.

A 3D-printed camper can shift the theme toward an expedition or overland build.

A flatbed can turn the Chevrolet into a working farm, recovery or trail-support truck.

A stepside conversion changes the silhouette completely while preserving the square-body cab.

Wheel, tyre, bumper and scale-accessory changes can then reinforce that identity.

The FairRC K10 Mods Explained guide explores the Stepside, Flatbed, Blue and Stuntman builds in more detail.

The FMS FCX18 K10 vs FairRC K10 Stuntman Mod RTR comparison also shows the difference between starting with a clean stock truck and buying directly into a completed FairRC Mod concept.

Can Old FCX18 K10 Upgrades Be Used on the New FCX18 II F-100?

Not automatically.

This is one of the most important rules for anyone moving from the K10 to FCX18 II.

The wheelbase may remain at 199mm, but the chassis, axle configuration, shock mounting, transmission placement, body attachment and several other structural details have changed.

A part advertised for the original FCX18 K10 should therefore not be assumed to fit the FCX18 II simply because both vehicles say FCX18 on the box.

Parts should fall into three categories.

Confirmed FCX18 II Parts

These are the safest upgrades: components explicitly listed by FMS or BATRAZZI as compatible with FCX18 II.

Examples include the dedicated Cowboy bumpers, steering components, shock towers, axle options and track mounts discussed above.

Generic Wheel and Tyre Components

Some wheels and tyres may use interfaces shared across several small crawlers, but diameter, width, offset and body clearance still need to be checked.

Compatibility at the hub does not guarantee compatibility during full steering lock and suspension compression.

Original FCX18-Specific Chassis and Body Parts

K10 body conversions, suspension mounts, portal components, chassis links and other vehicle-specific pieces should be treated as first-generation parts unless FCX18 II compatibility is explicitly stated.

This distinction prevents an established upgrade ecosystem from becoming a source of expensive assumptions.

Could the F-100 Become the Next Big FairRC Mod Platform?

The ingredients are certainly interesting.

A classic licensed Ford pickup, magnetic removable body, 199mm wheelbase and new chassis architecture create plenty of theoretical custom potential.

But potential should not be confused with a product that already exists.

The confirmed FairRC ecosystem is currently much stronger around the established FCX18 K10, while the confirmed FCX18 II-specific upgrade catalogue is already developing directly through FMS and BATRAZZI.

That makes the sensible approach simple: use confirmed FCX18 II parts for the Ford today, and watch the wider aftermarket as the platform develops.

Browse FairRC 1:18 Scale RC Crawlers and Mods

F-100 vs K10 for Scale Realism

Both trucks are unusually strong scale subjects.

The K10 has the advantage of an established square-body identity and a modification culture that already includes flatbeds, camper shells, stepsides and custom wheel combinations.

The F-100 has the freshness of a new platform and a very clean classic-pickup form backed by Ford licensing, detailed hard-body construction, interior modelling and integrated lighting.

The magnetic body system may also make it easier to own several visual identities for the same chassis without turning every body swap into a wiring job.

For photography, both have enormous potential.

The difference is story.

The K10 can already become the battered farm truck, expedition camper, custom flatbed or modified trail pickup.

The F-100 currently feels more like the beginning of a new build story.

That build story does not have to remain showroom-clean. The FairRC Rusted Mods and RC Crawler Weathering Ideas guide explores patina, repaired panels, aged wheels and tyres, trail-worn finishes and other ways to give a scale crawler a believable working history.

F-100 vs K10 for Technical Crawling

The specification sheet creates a fascinating trade-off.

The K10 starts higher.

Its portals, larger tyres and 40mm ground clearance provide obvious benefits where the obstacle is physically trying to catch the differential or chassis.

The F-100 starts lower.

Its 31mm ground clearance sounds worse until the rest of the architecture is considered: lower drivetrain placement, solid axles, smaller tyres and a chassis deliberately designed around reducing the centre of gravity.

That can potentially help where the obstacle is trying to roll the vehicle rather than simply catch underneath it.

The F-100 also has the much stronger stated departure angle: 53° compared with 33° on the stock K10 specification.

The K10 counters with a 70° approach angle compared with 59° for the Ford.

One is therefore not simply the taller or lower version of the other. Their body geometry also changes which end of the truck encounters the obstacle first.

Which Is Better on Side Hills?

From design alone, the FCX18 II's lower-centre-of-gravity strategy is clearly intended to improve stability.

That does not make a measured side-hill result possible without driving both trucks under the same conditions.

Tyres, wheel weight, body weight, spring setup and surface grip can all change the outcome.

What can be said is that the new platform gives builders more tools for controlling that behaviour without immediately resorting to extreme modifications.

Which Is Better Over Large Rocks?

The K10's portal axles and greater stock ground clearance provide a strong theoretical advantage where axle clearance is the limiting factor.

The F-100 can answer later with optional portal-axle components if that proves necessary.

This modularity may be one of the smartest parts of the new FCX18 II platform: start low, then add clearance if the terrain demands it.

Which Is Better for Trail Driving?

Both retain two-speed transmissions and compact 1:18 dimensions, which makes both attractive for mixed crawling and trail use.

The F-100 adds an approximate 80m listed radio range and a stated runtime of approximately 40–60 minutes with the supplied 900mAh battery.

The real trail experience will still depend heavily on terrain, throttle use and eventual tyre choices.

Which Is the Better First FCX18?

For someone entering the ecosystem now, the F-100 has a strong argument simply because it represents the newest architecture and already has manufacturer-supported upgrade routes.

The K10 has an equally strong argument for someone who values an established catalogue and knows exactly what type of custom truck should eventually emerge.

This is less a question of new versus old than blank canvas versus mature ecosystem.

Which Is Better for a Long-Term Build?

Both can become long-term projects, but in different ways.

The FCX18 II F-100 is interesting because the owner can explore a new chassis as its parts ecosystem expands.

The K10 is interesting because much of that expansion has already happened.

For a builder who enjoys being early on a platform, the Ford is the obvious attraction.

For a builder who wants an enormous catalogue of known ideas today, the Chevrolet remains difficult to dismiss.

Do Not Forget the Wider FCX18 Ecosystem

These two pickups are only part of the FMS 1:18 story.

The FCX18 family also includes other scale-oriented body styles, while the wider FCX range moves down into 1:24 and up into 1:10.

The FMS FCX18 vs FCX24 vs FCX24M comparison explains why 1:18 occupies such an interesting middle ground between micro crawlers and larger trail trucks.

The FMS FCX18 Buying Guide also looks at the three broader ownership paths: stock FMS, FairRC Mod RTR or a build developed progressively with BATRAZZI components.

Browse the FMS FCX Series

A Build Idea — Keep the Ford Low and Scale

One interesting route is to respect what makes FCX18 II different rather than immediately trying to turn it back into the old platform.

Keep the solid axles.

Retain a relatively modest tyre diameter.

Use low-mounted brass selectively around steering and hubs.

Experiment with shock angle.

Add the Cowboy bumpers.

Build a classic trail F-100 whose strength is controlled weight distribution rather than maximum axle height.

This preserves the engineering philosophy FMS has deliberately introduced.

Another Build Idea — Turn the F-100 Back Toward Maximum Clearance

The opposite project is equally interesting.

Use the optional portal-axle route.

Move toward a larger tyre package.

Use beadlock wheels and tune the suspension around the changed ride height.

At that point the FCX18 II begins combining its newer chassis layout with some of the clearance philosophy associated with the K10.

This type of build should be developed progressively because every increase in tyre diameter and axle height changes several variables at once.

A Third Build Idea — Scale Custom Ford

The F-100 body almost invites a custom-truck approach.

Aluminium Cowboy bumpers already provide a starting point.

A restrained wheel-and-tyre change can alter stance without turning the model into an oversized monster crawler.

Scale tools, cargo, recovery equipment, period accessories and subtle weathering can then build a fictional history around the truck.

The best scale projects often work because every modification appears to have a reason.

A dent, replacement panel, worn bumper or trail repair can tell more of a story than fitting every accessory in the catalogue.

The K10 Remains the Better Playground for Body Conversions — For Now

For ambitious body work, the FairRC K10 ecosystem remains exceptional.

Camper shells, flatbeds, stepside conversions and complete Mod RTR builds already demonstrate what can be done with the first-generation platform.

The FairRC 1:18 Flatbed Classic Mod RTR FCX18 K10 article shows how dramatically the character of the original Chevrolet can change when the pickup bed becomes part of the build rather than a fixed component.

The wider FairRC Complete Buyer's Guide covers the retailer's broader ecosystem of crawlers, Mods, BATRAZZI upgrades and scale accessories.

FAQ — FMS FCX18 II Ford F-100 vs FCX18 K10

Is the FCX18 II F-100 the same chassis as the FCX18 K10?

No. The F-100 introduces FMS's second-generation FCX18 II architecture. Although both trucks use a 199mm wheelbase and share several general FCX concepts, the new chassis changes drivetrain placement, axle design, shock mounting, body attachment and other structural elements.

Does the FMS FCX18 II Ford F-100 have portal axles?

The stock F-100 uses solid axles rather than portals. FMS already lists optional portal-axle components and axle assemblies for the FCX18 II platform.

Does the FCX18 Chevrolet K10 have portal axles?

Yes. The FCX18S Chevrolet K10 V2 uses a portal-axle configuration as standard.

What is the wheelbase of the FCX18 II Ford F-100?

The F-100 uses a 199mm wheelbase, the same listed wheelbase as the FCX18 K10.

What size are the stock FCX18 II F-100 tyres?

FMS lists the stock BFGoodrich KO3 tyres at approximately 58 × 19mm.

How does that compare with the FCX18 K10?

The K10 is listed with approximately 66 × 22mm tyres, giving the older truck a considerably larger stock tyre diameter.

Which has more ground clearance?

In stock specification, the K10 is listed at 40mm and the FCX18 II F-100 at 31mm.

Which has the better approach angle?

The stock K10 is listed at 70°, compared with 59° for the F-100.

Which has the better departure angle?

The new F-100 is listed at 53°, substantially more than the K10's 33° stock figure.

Does the FCX18 II Ford F-100 still have two speeds?

Yes. It retains a two-speed transmission, with FMS listing a high-gear ratio of 17.7 and low-gear ratio of 94.2.

Can FCX18 K10 BATRAZZI parts fit the FCX18 II F-100?

Compatibility should never be assumed. The second-generation chassis differs significantly from the original FCX18. Use parts specifically marked for FCX18 II, or verify wheel, tyre and generic component dimensions individually before ordering.

What BATRAZZI upgrades are already available for FCX18 II?

Confirmed options include Ford F-100 Cowboy bumpers, brass wheel hex components, brass steering servo hardware, aluminium steering links, aluminium shock-tower mounts, tyres, beadlock wheels and dedicated mounts for the BATRAZZI track system. FMS also lists optional axle configurations for the FCX18 II platform.

Should portal axles be the first F-100 upgrade?

Not necessarily. The FCX18 II was deliberately designed around a lower solid-axle layout. Drive the truck first and identify whether axle clearance is genuinely limiting the terrain before changing one of the defining characteristics of the new chassis.

Should larger tyres be the first upgrade?

Only if the stock tyres are limiting traction or clearance. Larger tyres can add clearance and change the appearance, but they also alter effective gearing, rotating mass, steering clearance and body clearance.

Is FairRC selling FCX18 II F-100 Mods?

The established FairRC FCX18 ecosystem is currently centred strongly around first-generation platforms such as the Chevrolet K10. FCX18 II-specific compatibility should be confirmed on individual listings rather than assuming that existing K10 Mods or parts transfer to the new chassis.

Which truck is better for custom body builds?

The K10 currently has the more developed body-conversion ecosystem, particularly through FairRC's flatbeds, stepside builds and camper-shell options. The F-100's magnetic body system creates considerable future potential, but confirmed parts should guide current builds.

Which truck should a new buyer choose?

The F-100 makes sense for someone who wants the latest FCX18 architecture and a new platform to develop. The K10 remains compelling for anyone who values stock portal clearance and an already mature upgrade and Mod ecosystem.

Final Verdict — FCX18 II Does Not Replace the K10, It Changes the Direction

The FMS FCX18 II Ford F-100 is important because it changes what an FCX18 can be.

Instead of simply increasing clearance, tyre diameter or metal content, FMS has rethought the location of mass, drivetrain reaction, suspension adjustment and body access.

The result is a lower truck with smaller stock tyres and solid axles — decisions that initially look surprising beside the portal-equipped K10 — but those choices are part of a coherent lower-centre-of-gravity strategy.

The K10 remains the opposite kind of attraction.

It starts with more clearance, larger tyres and portal axles, and it already sits inside one of the deepest small-scale custom ecosystems available through FMS, FairRC and BATRAZZI.

For a new technical build, FCX18 II is the fascinating platform.

For a mature scale-custom ecosystem, the K10 remains extremely difficult to beat.

And for builders who enjoy both engineering approaches, the most interesting answer may eventually be to keep the trucks different rather than trying to make one imitate the other.

View the FMS FCX18 II Ford F-100 at FMS Hobby

View the FMS FCX18S Chevrolet K10 V2 at FMS Hobby

Explore the FCX18 Chevrolet K10 at FairRC

Browse the Catalogue

RC crawlers, upgrade parts, wheels, tyres, scale accessories and other hobby products can also be explored through the Scale & Motion curated catalogue.