At one of the world’s most competitive off-road events – the ROAR National Championship – the XB8 platform once again proved its world-class performance. The XB8 has already captured multiple US National titles, but the 2025 season was truly exceptional as XRAY added another set of ROAR championships. Dakotah Phend claimed the prestigious ROAR National title, confirming the XB8 as a proven winning platform at the highest level of competition.

Designed in virtual reality using the world's most sophisticated CAD tools, and manufactured using the world's best machining and molding machinery, the XB8 achieves a level of perfection in all details that is second to none.

The XRAY XB8 platform has demonstrated its incredible performance by winning another European Championship title.

At the 2025 European Championship, David Ronnefalk claimed the overall European Championship title, while Lee Martin secured victory in the 40+ class.

This double European Champion success marks an important milestone, adding to the extensive list of achievements that highlight the XB8’s outstanding race record.

Designed, developed, and fully manufactured in-house at the XRAY factory in Slovakia, Europe, using the most high-tech German & Swiss machines and premium European materials, crafted with XRAY's legendary attention to detail by our artistic production specialists. The XB8 is truly a masterpiece.

For the last four years, all XRAY kits — including the XB8 kit — and all spare parts have kept the same price, a rare promise in today’s market.

Our focus is simple: deliver the best performance and quality without raising costs for our racers.

Note: VAT, tariffs, and exchange rates may have changed over time and are applied to prices according to local tax laws.

Note for US customers: The 2025 US tariffs on EU products are unfortunately beyond our control and may affect the pricing of all EU-manufactured products in the US including XRAY

The chassis plate features a revised rear C-holder position to improve traction, and a milled pocket under the clutch bell prevents chassis contact under full flex and protects the pinion gear teeth from damage.

The chassis is also engineered for the split radio box mounting configuration, which significantly improves overall traction and delivers perfectly balanced left-to-right flex.
This mounting layout stabilizes the steering servo area while maintaining the ideal chassis flex characteristics needed for maximum performance.

Strategically milled pockets in key locations reduce weight and fine-tune flex without compromising strength.
The chassis includes six dedicated mounting positions for the split radio box — three for the front steering servo box and three for the electronics box — ensuring maximum rigidity and secure installation.

CNC-machined from high-quality 3mm Swiss 7075 T6 aluminum, the chassis is precisely lightened in low-stress areas and finished with a hard-anodized coating for exceptional strength, durability, and consistent performance.

The C-suspension holder features lower mounting positions and updated geometry to generate increased traction and improved stability, especially in low- to medium-grip conditions.

The front upper arm suspension holder is designed to provide increased strength and rigidity.
All front and rear suspension holders offer a wide range of setup adjustments using the included eccentric bushings.

Each aluminum suspension holder features Integrated Suspension Settings™ (I.S.S.), allowing quick and precise suspension geometry changes.
With eccentric bushings inserted into the holders — together with additional suspension shims — the XB8E suspension geometry can be easily tuned for any track condition.
All holders are CNC-machined from premium Swiss 7075 T6 aluminum and finished with a black coating for maximum durability.

The 4-shoe clutch features smaller, lighter internal parts, and the design allows for more balanced clutch bell engagement compared to a traditional 3-shoe design.

The 4-shoe design allows the use of multiple combinations of different shoe hardness and spring tensions for clutch engagement tuning, and even allows for mixed combinations of shoes and springs which gives ultra-fine engagement choices. There are 4 different hardness of shoes and 3 different hardness of springs available. Changing the clutch configuration is very easy thanks to the special assembly screws that hold the shoe and spring. The kit includes medium springs and medium shoes, selected as the optimal all-round choice.

CLUTCH SHOE SETTING
SOFT: earliest engagement & maximum tractio
MEDIUM: later engagement with controlled sli
HARD: latest engagement & higher engine RPM

Precision-machined from premium steel on a dedicated gear-cutting machine, the 14-tooth clutch bell for 4-shoe clutch system delivers exceptional durability, accuracy, and perfectly true rotation.
Gears are hardened to provide the longest possible lifespan, ensuring maximum reliability under extreme racing conditions.
The innovative 3-bearing support system guarantees ultra-precise, wobble-free operation, reducing play to improve clutch engagement and significantly extend the lifespan of the bearings and the clutch bell.

The rear wing mount features a new enlarged contact area where the wing is attached, providing a significantly stronger and more secure connection.
The increased surface supports the wing across a wider base, allowing it to better withstand impacts and reducing the chance of deformation or loosening during crashes.
The larger mounting footprint also improves wing stability under high load and at high speeds, delivering more consistent downforce and predictable handling.
Made from a durable composite material, the mount maintains a lightweight one-piece design with controlled flex to absorb impacts without sacrificing rigidity.

The all-new HUDY® 1/8 Off-Road Strike Wing delivers maximum stability and improved handling thanks to its modern, ultra-low-profile design with enlarged side dams.
Its lightweight composite blend combines handling characteristics close to a lexan wing with significantly higher durability, making it ideal for competitive racing.
Reinforced fang-shaped support brackets increase strength in key load areas while keeping the overall weight extremely low.
The raised center dividers enhance high-speed stability and reduce side-to-side wing flex. Pre-marked cutting holes allow fast and easy downforce tuning for any track condition.
The wing is fully IFMAR-legal.

All-new composite ball joints made from a special graphite-reinforced material.
These new ball joints significantly reduce friction and ensure smooth, free movement of the linkage in all conditions — even on dusty or abrasive tracks.
The graphite ball joints are used on the rear camber links and anti-roll bars, providing improved precision, consistency, and long-term durability.

The radio box features new split design that ensures a perfect left to right side flex characteristics that helps to generate more overall traction. All the electronics are mounted inside of the temperature resistant Hard composite box. This flex configuration and material composition improve the overall traction of the car.

The radio box is fitted to the chassis with three screws in front and three screws in the rear to achieve perfect stability for the servo mounting. To facilitate easier handling, the front and rear sections of the box are connected at the bottom.

The electronics assembly is very compact and can be quickly & easily removed for servicing and cleaning. It requires removing only a few screws from the bottom of the chassis to remove the entire electronics assembly from the car.

The large, molded radio box features a very clean design and layout that places the weight in key areas for proper balance. The batteries are placed along the front centerline of the chassis, while the lighter receiver is placed on its side at the rear. The easy-access radio box is mounted on the side of the car and is secured by the fewest possible screws.

New Swiss 7075 T6 aluminum shock towers feature lowered shock mounting positions for both the front and rear suspension. The lower mounting positions increase the overall stability of the car across all surfaces, as well as help increase cornering speeds. By carefully selecting the new tower geometry, the single row of shock mounting positions simplifies the set-up process to optimize performance for any track condition.

The front & rear shock towers are CNC-machined from 4mm Swiss 7075 T6 aluminum for strength and durability. The front shock tower features 4mm shock mounting holes for increased durability and rigidity.

The new XB8 shock bodies and shock shafts were shortened to match the new lowered shock towers and lowered mounting geometry, while maintaining proper suspension travel.

The shorter XB8 shocks carry over multi-adjustable 3-in-1 shock caps with 4 bleed holes with 3 different seal choices – ribbed membrane, cell membrane, or O-ring. The shorter shocks feature 3 different assembly alternatives – emulsion / rebound / zero rebound, with each one suitable for different track conditions.

The lower shock ball joint features a lock extension that fits into the lower collar, reducing the chances of the retainer separating from the ball joint and unseating the spring in a crash.

Oversized big-bore shocks featuring 16.2mm I.D. shock bodies and are externally threaded with an adjustable collar for quick & easy spring preload adjustment. The shock bodies are hard coated in a titanium color and feature a 1-piece aluminum lower cap.

The XB8 comes with 4 Dots front springs and 3 Dots short (82mm) rear springs.

3-in-1 shock caps allow assembly in 3 different configurations – emulsion / rebound / zero rebound, to match shock dampening characteristics to various driving styles and different track conditions.

The Emulsion configuration uses an O-ring to seal cap to body, mixing oil and air inside the shock. Typically provides excellent traction on a variety of surfaces and is suggested as a starting point for most typical track conditions.

The Rebound alternative using the cell membrane is best matched to lower traction and flat slippery tracks. This shock set-up has the most rebound out of the three build options.

The Zero Rebound configuration created by using the ribbed membrane is better suited for super bumpy tracks. This set-up has no rebound.

The new front & rear gearbox front cases were modified with provisions for the anti-roll bar centering collars. The new anti-roll bar collars minimize unwanted movement and improve the precision of the anti-roll bar functionality.

Front & rear bulkheads feature a semi-split design for easy diff access while adding the valuable diff height adjustment. The bulkhead also aligns the front central driveshaft with a reduced operating angle for less friction and reduced wear on the CV joint components and improved driveline efficiency.

The XB8 bulkheads allow fast and easy differential access for setup changes or servicing by removing only 4 screws from the upper gear box cover while the lower section remains mounted to the chassis with the lower arms and suspension holders installed. This super-fast diff access is featured on both the front and rear gearboxes.

To increase overall traction in all track conditions, the front anti-roll bars used are 2.2mm and the rears to 2.4mm.

Anti-roll bars, manufactured from spring steel material, are easily mounted to front & rear diff cases with easy adjustment using the adjustable linkages.

Anti-roll bar wires of different thicknesses are optionally available for fine-tuning.

Steering blocks from a harder composite material provide a more responsive feel especially on bumpy tracks and retain free suspension movement in dusty conditions for better consistency. The steering blocks are super lightweight yet extremely strong, featuring a larger outside 8x16x5mm ball-bearings for increased reliability and lifespan.

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The all-new 3 dots carbon steering plates update Ackermann geometry, improving the stability and cornering speed of the car. The new geometry features increased Ackermann, with the outside wheel turning less, which yields improved drivability and lowered lap times.

The specially designed ball studs increase steering lock and allow greater steering radius. The integrated backstops ensure that the pivot balls do not disconnect in crashes.

Ackermann can be easily adjusted on the machined Swiss 7075 T6 steering plate as well to ensure highest reliability and strength.

To improve the out-of-the-box geometry, the XB8 now includes both front & rear wheel hubs with a +1mm off-set which is the most favorite choice for most of the track conditions.

Ultra-lightweight 17mm wheel hex drive hubs are CNC-machined from Swiss 7075 T6 black-coated aluminum.

The alu hex hubs are specially machined to reduce rotating weight while guaranteeing wobble-free wheel mounting.

All XB8 drive shafts are manufactured from world-renowned HUDY Spring Steel™, resulting in some of the thinnest and most durable drive shafts found in any RC vehicle.
All XRAY drive shafts and outdrives are hardened with a proprietary hardening process to provide unsurpassed lifespan & reliability.

Reinforced front and rear bulkheads were updated for added strength to ensure higher reliability and to improve the seal between the main bulkhead and cover plate. The revised bearing inserts also feature improved dust resistance and prevent debris from entering the bulkhead assemblies while offering the valuable differential height adjustment.

The diff height adjustment of the semi-split bulkheads uses eccentric bushings to set the diff position. The diff height has 3 different settings. The diff height adjustment is a vital tuning option that allows quick set-up adaption for all different track conditions.

The ideal position will vary depending on the track conditions and ride height.

The design of the semi-split bulkhead allows to adjust the angle of the CV joint depending on the track conditions, traction of the track and ride height used.

At the high traction tracks a lower ride height is used and thus the diff placed in upper position to keep the drive shafts straighten and corresponding CV joint also in upper position.

At the low traction tracks an increased ride height is used and thus the diff placed in lower position to keep the drive shafts straighten and corresponding CV joint also in lower position.

The differential crown gear and bevel drive gear feature specially designed profiles of the 46T and 13T gears for a perfectly matched engagement for smoother operation, less drag and significantly longer lifespan.

The high-volume differentials improve vehicle control and consistency over long runs and enhance reliability. The differentials feature larger capacity cases and larger internal gears with more teeth for improved differential moment. The larger oil volume and the shape of the gear teeth reduce overheating for improved consistency. The stronger diff pin design also improves reliability.

The semi-split bulkhead design and compact front bumper allows direct access to the differential while the entire suspension assembly remains mounted on the car.

The steering system includes an Ackermann plate and graphite servo saver component shape to work with the semi-split bulkhead.

To ensure servo saver reliability, the servo saver parts are moulded from graphite material which is more resistant and efficient in dusty conditions. The dual-arm steering system is simple yet effective, featuring an integrated and easily adjustable servo saver, and a Swiss 7075 T6 aluminum steering plate.

The conical spring is longer and stronger, ensuring more precise steering and improved reliability.

Ackermann is easily adjusted by changing steering link mounting positions on the steering plate. Bump steer is adjusted by inserting shims between the steering plate and steering linkage.

Front upper arms have additional mounting holes for the optional front upper arm wings. The wings increase downforce on the front suspension for increased traction and helps to keep the buggy nose down.

Optional wings are available in Lexan and Carbon alternatives.

To ensure the performance and reliability, the Pivot Ball suspension arms and optional C-hub suspension are molded from special composite mixture. The rear suspension arms are molded from extra-hard composite mixture that makes the car easier to drive. The front lower and upper arms feature a composite mixture change from soft to medium. The optional front lower C-hub suspension arm is molded from a hard composite mixture.

Specifically chosen gear ratio provides sufficient adjustments range. Differential main gears are manufactured from HUDY Gear Steel on a precision manual gear machine. This material was specially formulated and developed for use in gears. All gears are hardened to provide the longest possible lifespan.

A wide range of different gears — spur gear, clutchbell, crown gear — is available for perfect set-up and tailoring to particular racing conditions.

• Clutchbells are available in sizes of 13T and 14T.

• Spur gears are available in a range of 46T, 47T, and 48T.

Specially designed centering brake screws’ smooth surface improve braking feel and provide more consistent operation as the brake pads slide more easily on pin.

The spring and ball-shaped bushing give more reliable and consistent brake linkage operation.

To further improve the braking efficiency and to ensure consistent braking characteristics, the ultra-efficient pre-glued brake pads are included in each XB8 kit.

The laser-cut, precision flat-ground steel brake disks provide fade-free braking in conjunction with the pre-glued brake pads. The brake disk is small, slim, and very lightweight. The precision hand-grinding allows true, wobble-free rotation. Both brake disk and brake pads are specially heat-treated for maximum lifespan.

HUDY Exclusive Silicone Oils are manufactured in Europe and each batch is laboratory tested and calibrated to ensure the highest possible consistency and quality from batch to batch. Based on the industry-standard cSt rating, the new line of oils will be easy to identify, adjust, and feel.

When following any set-up sheets by XRAY or XRAY team drivers, you can be sure that the oils you will get for your car are exactly same as those used by the factory racing team, thus ensuring very exacting set-ups and handling.

HUDY Chem Series.

The XB8 features fully-adjustable front & rear suspension geometry. For quick & easy adjustment, we recommend using set-up tools and accessories from HUDY, the world leader of RC tools.

The extensive and impressive range of adjustment possibilities includes: Caster, Camber, Toe, Kick-up, Anti-dive, Anti-squat, Ride height, Downstops, Track-width, Lower roll center, Upper roll center, Bump steer, Wheelbase, Ackermann, Fully-adjustable shocks, Adjustable front and rear differentials, XRAY Multi-Flex™

The chassis design focuses on balanced weight distribution and weight transfer. Centerline holes are pre-drilled for easy balancing with the HUDY Chassis Balancing Tool #107880.

XRAY Instruction Manuals have become the industry standard; they are simply the best manuals you will ever get with an RC model car. Whether you are a first-time builder or an experienced racer, all instructions are straight-forward and easy to understand. The full-color Instruction Manual contains large 3D illustrations that show all assembly details in the easiest and most comprehensive manner.