HobbyPlus CR18P Parts & Upgrade Guide — Drivetrain, Axles, Suspension, Wheels and Electronics

Hobby Plus CR18P T-Hunter matte sand body assembly with front bumper

The HobbyPlus CR18P platform has developed into far more than a single 1/18-scale crawler. Around the Rock Van, Arktos, Terranaut and other CR18P variants sits a substantial parts ecosystem covering drivetrain components, axles, suspension, steering, chassis hardware, wheels, tyres, electronics and replacement body parts.

That depth matters because a CR18P can be maintained as a stock crawler, repaired after regular trail use or progressively developed into a more specialised build without replacing the complete vehicle.

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Why the CR18P Parts Ecosystem Matters

One of the strongest arguments for an established RC platform is not simply how capable the original vehicle is. It is what happens after you have owned it for a while.

Parts support determines whether a crawler can be repaired, tuned and kept running rather than being treated as a disposable RTR.

The HobbyPlus catalogue at FairRC covers hundreds of components and includes parts for several generations and configurations of the CR18P family.

These range from simple service items and bearings to metal drivetrain components, axle assemblies, suspension hardware and complete replacement body components.

The important distinction is that not every part is an upgrade. Some are replacements, some improve durability, and others alter the way the crawler behaves.

Which HobbyPlus Vehicles Use the CR18P Family?

The CR18P architecture appears in several very different HobbyPlus vehicles.

The compact CR18P EVO V2 Rock Van is a 4x4 trail crawler built around a short 160mm wheelbase. The CR18P Arktos extends the family into a 6x6 flatbed layout, while the CR18P Terranaut pushes it further with an 8x8 configuration.

There is also the CR18P Pro Juice Up, which takes a more performance-oriented brushless route within the family.

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This variety is why compatibility should always be checked at component level. A part labelled CR18P may fit several versions, while another may be specific to EVO, EVO V2, Arktos, Terranaut or another chassis configuration.

Drivetrain Parts — Start with the Mechanical Foundation

The drivetrain is one of the most developed areas of the CR18P parts catalogue.

Available components include pinion and ring gears, axle gears, transmission gears, driveshafts, gearbox components and associated hardware.

Metal Pinion and Ring Gears

Pinion and ring gears transfer drive inside the axle assembly. These are therefore fundamental components rather than decorative upgrades.

FairRC carries a dedicated CR18P metal pinion and ring gear set as well as other gear configurations for specific versions.

Metal gearing can be useful when durability is the objective, especially on crawlers that have accumulated additional weight or are used regularly on demanding terrain.

It is still worth treating the drivetrain as a complete system. Stronger gears do not remove the loads placed on driveshafts, bearings, axles and motor components.

Axle Metal Gear Set

The CR-18 / CR18P / CR18P-EVO axle metal gear set is another example of how HobbyPlus parts can serve both repair and durability-focused builds.

Compatibility across several CR-family vehicles also shows one of the advantages of a platform that has evolved over multiple generations.

Steel U-Joint Driveshafts

Driveshafts are another logical area to inspect when the crawler is used heavily or drivetrain load has increased.

The steel U-joint driveshaft set is listed for several CR18P generations, including EVO and EVO V2 applications.

Again, the objective should be mechanical balance rather than replacing parts simply because metal alternatives exist.

Axles, CVDs and Portal Hardware

Axle components sit at the intersection of drivetrain durability, steering geometry and ground clearance.

FairRC carries complete housings as well as individual shafts, CVD components, portal hardware and machined axle alternatives.

The CR18P front CVD drive shaft is a useful example of a component that can be kept as a service spare rather than treated as a performance modification.

This distinction matters. A crawler parts box should not consist only of upgrades. Small drivetrain and steering components can be more useful on the trail than an expensive cosmetic modification.

Brass Parts and Weight Placement

Weight tuning is one of the most common ways of changing crawler behaviour.

The basic principle is straightforward: placing additional mass low on the chassis can reduce the centre of gravity and improve stability on side slopes and climbs.

The HobbyPlus CR18P brass wheel weights are one route to doing this.

But more weight is not automatically better.

Additional rotating mass can increase the work required from the motor and drivetrain. Weight should therefore be added to solve a specific handling problem rather than simply because brass components are available.

Suspension — Control Matters More Than Height

A crawler suspension system has to do more than provide wheel travel.

It must control the chassis as weight transfers between wheels, keep the tyres working against uneven terrain and prevent excessive bouncing after an obstacle.

CR18P parts include replacement shocks, aluminium shock options, links, mounts and associated chassis hardware.

The Rock Van EVO V2 itself demonstrates the direction HobbyPlus has taken with the platform, using threaded, oil-filled big-bore aluminium shocks as part of its standard chassis specification.

For other CR18P configurations, suspension upgrades should be chosen around vehicle mass, tyre size and terrain rather than simply maximum articulation.

High-Clearance Links and Chassis Geometry

Suspension links influence axle position, articulation and clearance beneath the chassis.

High-clearance links can reduce the likelihood of a lower link becoming the first component to contact a rock or ledge.

However, changing links can also alter geometry.

That is why a complete link conversion deserves more thought than a purely cosmetic part. Wheelbase, pinion angle, suspension movement and tyre-body clearance all need to remain sensible after the change.

Steering and Servo-on-Axle Components

Some CR18P configurations, including the Rock Van EVO V2, use servo-on-axle, or SOA, steering.

Moving the steering servo directly onto the axle changes the steering architecture and can create a more direct steering arrangement.

FairRC carries an aluminium SOA conversion set among the CR18P parts available for compatible applications.

This is exactly the type of modification where compatibility matters more than the material from which the part is made.

Before changing steering hardware, check the specific CR18P generation, servo arrangement and linkage configuration.

Bearings and Bushings — Less Exciting, Often More Useful

Bearings rarely attract the same attention as wheels, tyres or brass components, but they matter enormously to a vehicle that is actually driven.

Dirt, moisture and repeated loading eventually affect rotating components.

FairRC lists a complete rubber-sealed bearing set for CR18P EVO and CR18P 2024, alongside individual bearing sizes and bushing components.

For an older crawler, restoring worn bearings can make more sense than immediately fitting performance upgrades.

Wheels and Tyres

Tyres remain one of the few upgrades that can change both the appearance and the mechanical behaviour of a crawler immediately.

The HobbyPlus CR18P ecosystem includes different wheel and tyre combinations, while FairRC's wider catalogue adds further options from BATRAZZI.

The 1.2-inch 60mm Mudder tyre is one example associated with CR18P applications.

When changing tyre size, consider:

body clearance at full steering lock
effective gearing
ride height
steering load
sidewall behaviour
wheel offset
overall scale proportions

A larger tyre can improve clearance but can also create new problems elsewhere in the setup.

Electronics and Replacement Power Components

The HobbyPlus parts range is not limited to mechanical hardware.

The catalogue also includes items such as brushed ESCs, 2S LiPo batteries and other model-specific electrical replacement components.

Electronics are particularly important from a long-term ownership perspective because an RTR crawler should remain useful even if an original electronic component eventually fails.

When replacing electronics, confirm voltage, motor type, connector format, receiver compatibility and available chassis space rather than assuming every 1/18 component is interchangeable.

Body Parts and Scale Components

CR18P parts also extend into complete body assemblies, grilles, bumpers, light sets and other model-specific exterior components.

This gives body damage a different meaning from damage to a sealed RTR model.

A Rock Van body, for example, can be repaired or replaced without retiring the chassis underneath it.

The same catalogue also includes body components for other CR18P models, including the T-Hunter body assembly illustrated at the top of this guide.

It creates the possibility of repairing or refreshing the visual side of an existing build while retaining its mechanical platform.

CR18P 4x4, 6x6 and 8x8 Parts Are Not All Interchangeable

This is one of the most important points when shopping for CR18P components.

The family includes conventional 4x4 vehicles as well as multi-axle platforms.

The Arktos 6x6 has model-specific components including 6x6 driveshafts, high-clearance links, skid plates, axle parts and flatbed hardware. The Terranaut 8x8 has its own dedicated drivetrain, suspension, steering and body components.

A product name containing “CR18P” is therefore not sufficient evidence of compatibility.

Always check whether a component is listed for the exact vehicle and generation you own.

Repair First or Upgrade First?

A sensible CR18P build does not require replacing every factory component.

There are three useful reasons to buy a part:

Maintenance: replacing something worn, damaged or loose.
Performance: addressing an identified limitation in traction, steering, suspension or drivetrain behaviour.
Scale development: changing the visual character of the vehicle.

If a proposed component does none of those things for your crawler, it may not be necessary.

A Sensible CR18P Upgrade Order

Start by driving the vehicle in its current configuration.

Tyres are worth evaluating first because they determine contact with the terrain. Steering and suspension should come next if control rather than grip is the limitation.

Drivetrain reinforcement becomes more relevant when the crawler is used heavily, fitted with larger tyres or given substantially more low-mounted weight.

Bearings, shafts and small service parts deserve attention throughout the life of the vehicle rather than only when a major upgrade is planned.

Finally, body and scale accessories can develop the personality of the build without unnecessarily disturbing a mechanical setup that already works.

Where BATRAZZI Fits

HobbyPlus parts and BATRAZZI upgrades should not be treated as the same thing.

HobbyPlus parts include original platform components, service items and optional hardware for the CR18P family.

BATRAZZI provides an additional aftermarket layer around many vehicles sold through FairRC, including tyres, wheels, oil-filled shocks, brushless systems, bumpers and other tuning components.

That means a CR18P build can mix factory HobbyPlus parts with selected aftermarket components rather than being locked into one route.

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Final Verdict

The real strength of the HobbyPlus CR18P family is not a single upgrade.

It is the availability of a broad mechanical ecosystem around the vehicles.

Axle gears, driveshafts, CVDs, links, bearings, suspension hardware, steering components, wheels, tyres, electronics and body parts allow a CR18P to evolve gradually while also remaining repairable.

For owners, that creates a much better long-term proposition than treating an RTR crawler as a fixed product.

Drive it first. Identify what needs attention. Repair what is worn. Upgrade only where there is a purpose.

That approach keeps the CR18P balanced while still leaving considerable room for experimentation.

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