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2022 All-New Features:

  • Longer wheelbase chassis with updated layout
  • Front and rear suspension holders mount directly to the chassis with new GT specific geometry
  • Aluminum spacers raise the front and rear diff heights for better drivetrain alignment
  • Front and rear gear boxes with cooling cut outs for the differentials
  • New rear diffusor for increased stability at high speed
  • Front upper bumper brace matched to front gearbox opening for improved diff cooling
  • Front lower bumper provides clearance for the new suspension mounts
  • Front and rear suspension arms in softer materials that previous GTX
  • Front C-hubs with 6° caster for improved steering characteristics
  • 3-slot steering Ackermann graphite plate with more initial steering and more overall steering angle for the GT category
  • Hard rear uprights for improved stability
  • Graphite rear upright extensions for increased corner speed
  • Front and rear shock towers with new shock positions and roll center locations
  • Aluminum lower shock mount extensions improve the corner speed and stability in corners
  • Softer progressive shock springs with new shock mounting position provide more stability, traction, and steering
  • Thinner anti-roll bars to match new suspension geometry
  • Central dogbone driveshafts and outdrives
  • Braking eccentrics with new cam profile improve braking efficiency
  • Servo saver stands with the chassis key lock design
  • Stronger servo saver spring with a wider range of adjustment
  • Front top deck with two different brace positions ensures clearance for the servo saver to prevent binding
  • Longer composite front brace makes the car more predictable


The GTX8 is typically XRAY– premium, professional, high competition R/C car for the most demanding racers, developed with attention to the smallest details and backed by premium service & support…a luxury masterpiece.


With XRAY's uncompromising design philosophy bringing everything together to make the best GT nitro car, the GTX8 has the unique XRAY character, born of precision craftsmanship, highest attention to detail, and using only the finest quality materials.


The chassis plate is redesigned to incorporate all the new features of the GTX’22.

The chassis length is increased to stretch the wheelbase, combined with the wider rear section, resulting in improved stability.

The updated layout also includes provisions to install the new rear diffusor and mount the front and rear suspension holders directly to the chassis plate.

The chassis features a new locking system for the servo saver posts to ensure the components will stay secure during chassis flex in extreme conditions.

The chassis is CNC-machined from 3mm high-quality Swiss 7075 T6 aluminum; strategically machined in low-stress areas and then anodized to make it as light as possible without affecting strength or rigidity.

Rear Diffusor.

All-new diffusor used at the rear of the car helps to increase downforce that improves stability and makes the GTX’22 easier to control at high speeds.


To improve the consistency of the differential performance throughout each run, the gear box covers are milled out for air flow to help reduce diff temperatures. This prevents overheating the diff oils and ensures more consistent handling during long mains and extends intervals between rebuilds. The rear gearbox and cover both have additional material milled out to increase airflow and cooling for the rear diff.

The front upper bumper brace was also modified with a milled opening to allow more air into the front gear box.

Suspension Holders.

All-new front and rear suspension holders are separated from the bulkheads and installed on the chassis. Mounting the holders directly to the chassis plate eliminates any flex from the bulkheads, improving the precision and responsiveness of the GTX’22.

The front kick-up angle was reduced, helping to create more steering and reduce tire wear.

The rear holders still offer multiple anti-squat positions, but the new plates have less anti-squat, which is better suited for the GT category to increase the stability of the car.

The new aluminum suspension holders continue to feature the Integrated Suspension Settings™ (I.S.S.) that allows for quick & easy suspension geometry changes

Using the eccentric suspension bushings inserted into aluminum suspension holders, and a few suspension shims, the GTX suspension geometry can be completely adjusted in seconds.

Gearbox Spacer.

Mounting the suspension holders directly to the chassis plate means the gearboxes can be lifted to improve the driveline geometry for the GTX’22. Aluminum gearbox spacers raise the differential height and improve the driveshaft angles, creating more traction on corner exit while improving mid corner rotation. The new driveshaft positioning also help to extend the service intervals of the driveshafts’ cv joints and the diff outdrives.

Easy Diff Access.

Bulkheads allow super fast and ultra comfortable diff exchange and servicing by dismounting only 6 screws from the front of the bulkhead and from the bottom of the chassis. This super fast diff access is available both in the front and rear.

Front Lower Bumper.

The updated lower bumper brace is modified for additional clearance around the new front suspension holder.

Front C-hub.

New front C-hubs were specially developed for the GT on-road platform. After extensive tests of various caster angles, the final 6° caster block was selected as the best choice to work in the wide range of racing conditions found at GT events.

The new C-hub geometry significantly improves steering characteristics over the previous 16° hubs. The reduced caster angle also helps to reduce tire wear, creating more consistent handling during longer main events.

Ackermann Plates.

The steering blocks feature new steering Ackermann plates that improve corner entry steering by increasing the outside wheel angle.  Machined from graphite, the plates are easy to mount to the steering blocks for replacement or adjustment.


The rear uprights are now moulded from a harder material that reduces flex in hotter conditions and makes the car more stable in the corners.

The uprights feature all-new graphite extensions that move the camber link mount higher and further inboard to shorten the rear camber link. The graphite extensions feature 5 different roll center positions for more tuning options on the GTX’22.

The rear uprights use the larger 8x16x5mm outer ball-bearings for increased reliability and lifespan. The smart design allows the same upright to be used on both left & right sides, reducing the number of spares needed in your parts box. The wheelbase position is adjustable using 2 shims along the lower suspension pin.

The rear uprights feature integrated geometry adjustments including camber, upper and lower roll center and wheelbase.

Suspension Arms.

Both front and rear suspension arms are now softer than the previous GTX kits. In comparison to the extra-hard suspension arms included in previous GTX kits, the new GTX’22 features Medium front and hard rear suspension arms. This combination of arms helps to increase traction in every track conditions.

Shock Extensions.

All-new aluminum suspension arm extensions create completely new shock geometry specific for the needs of the GT category. The shock extensions increase stability and improve the corner speed.

Shock Towers.

Both front and rear shock towers feature updated geometry with different shock mount and camber link positions on a tower that is lower overall compared to previous versions.

The new shock mount locations were repositioned in relation to the location of the lower shock mount extensions on the suspension arms, resulting in improved corner speed.

The new front roll center positions help create more steering and the revised rear roll center positions free up the rear end of the car and helps with stability on power.

Upper Links.

The shorter front and rear upper camber links match the rear hub graphite camber extensions and front and rear inner camber link positions to make the car more reactive in front and provide more rotation from the rear suspension.

Shock Springs.

The all-new front and rear shock springs were specially developed for GT on-road racing.

There are two new spring choices – both softer that our original GTX springs, and both featuring a progressive spring rate. For the initial setting the stiffer of the two new springs are used in front with the softer springs in rear. In this configuration the GTX will have maximum traction in most track conditions.

XRAY shock springs are manually measured, selected, and matched into pairs to guarantee precisely equal length and damping characteristics.


A longer front composite brace makes the car more precise and easier to drive. The brace is now mounted with two screws to the chassis for additional strength.

The longer rear brace is moulded from a medium-stiff composite mixture for proper flex control and allows the installation of optional graphite inserts to reinforce the brace to make it even stiffer (suitable for high-traction conditions).

Servo Saver.

The servo saver features a new conical spring that is longer and stronger. The new spring ensures more precise steering and improved reliability.

The servo saver posts feature a new locking system that keys into the chassis plate to ensure the servo saver setting will not change while running.

To improve servo saver reliability (especially in dusty conditions), it is moulded from a graphite material that is more resistant and efficient in dusty conditions. The dual-arm steering system is simple yet effective, featuring an integrated easily adjustable servo saver, and a Swiss 7075 T6 aluminum steering plate.

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.

Servo Saver Top Deck.

The new top deck features additional clearance so the servo saver will not bind when overtightened and will always work freely. Fits both GTX and GTXE.

Central Dogbone Drive Shafts.

Central dogbone driveshafts are lighter than CVD drive shafts for improved acceleration. They can also have a longer lifespan thanks to the easier maintenance of the dog bone and outdrives, reducing servicing requirements.

All the drive shaft parts are machined from Hudy Spring Steel and are specially hardened.

Brake System.

The new braking cams have an updated profile to improve the braking efficiency. The cams apply pressure to the brake backing plates more evenly in the center, improving braking feel and extending the service life of the brake pads.

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

The laser-cut, precision flat-ground steel brake disk provide fade-free braking in conjunction with the include 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.

Anti-Roll Bar.

To work with the new shock geometry, the front and rear anti-roll bars included in the kit are softer than previous versions.

The GTX anti-roll bars help control chassis roll, increase corner speed and improve the stability of the car.

The front & rear roll bars are easily mounted to the bulkheads and can be adjusted using the connected linkages.

Manufactured from spring steel material, anti-roll bars of different thickness are available for fine-tuning.


“I designed and hand-made my first off-road cars back in 1986, and they were dominating the races thanks to unbeatable reliability and best performance. Years later in 2004 we have started our first mass production XRAY XB8 platform based on our long-term experiences, knowledge, and R&D expertise gained over decades, taking over the heritage I brought with me.

Using the XB8 platform we have worked with the XRAY R&D team to create the finest and highest performing GT nitro car and I am happy that we continue to carry the legacy of my first off-road cars into this new platform in order to take you to the Winners Circle.”

Dipl. Eng. Juraj Hudy

XRAY Chief Designer


Designed in virtual reality using the world's most sophisticated CAD tools, and manufactured using the world's best machining and molding technology, the GTX8 has attained a level of perfection that is second to none. All parts are purpose-designed and manufactured by XRAY, so all parts fit and work perfectly together.


My commitment to perfection carries over into the GTX8 platform, as it has with all other XRAY platforms I am responsible for.

Owning an XRAY, you can be sure that we remain committed to our goal to improve our products by continuous development and testing to ensure that you always get the best-performing GTX8 straight out of the box.

Martin Hudy

XRAY GTX8 Designer


The GTX8 project follows a typical development progress at XRAY: 3D models were first printed & tested, and after successful test results the production moulds were machined. To ensure perfect fitment of all parts, all pieces are individually tested during the development phase and then are tested on track to ensure maximum reliability and performance.


Before I started racing off-road cars, I was actively professionally racing 1/5 scale on-road cars and I won 2x a European Championship. In my position as R&D Designer at XRAY, I was very happy to be involved again with an on-road project where I could bring my prior experience to the table.

I have thoroughly enjoyed my involvement in this new GT project, and I strongly believe this class will rapidly gain popularity due to its simplicity, easy handling, and great fun. I will continue to support the ongoing development of this new platform, and will be available to support all XRAY customers.

Martin Bayer

XRAY GTX8 Designer

Made in Europe.

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 GTX8 is truly a masterpiece.

Some information shown below may include details from previous kits, and it may vary slightly from current kit specifications.

Gear Differential.

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. The diff pins have stronger design to improve reliability.

Pinion Gear.

To improve drive train efficiency, the 13T pinion gears are included for both front and rear bulkheads. Thanks to the higher 3.54:1 internal ratio, vehicle acceleration has also been improved.

Diff Outdrives.

Super-lightweight diff outdrives are machined from HUDY Spring Steel™ with unnecessary material removed from the outer part of the outdrives to reduce rotating weight without affecting durability. The inner portions of the outdrives are additionally hand-ground for maximum precision and fitment into the diff case.

The outdrives are hardened using HUDY’s own special hardening process to provide extended lifespan and reliability.


Clutch performance is critical to engine operation, fuel mileage, throttle control and traction. The adjustable 4 shoe clutch improves clutch bell engagement for better engine response and improves throttle feel. The clutch design features 4-shoes machined from a graphite material. The clutch setting can be tuned with the adjustment nut to control the engagement point as desired.


2-Speed Carrier.

Alu carrier for 2-speed gear is made from a softer material for improved shifting consistency. The design of the carrier features new outer ribs for improved cooling. Machined from premium Swiss 7075 T6 aluminum.

Shocks Absorbers.

Longer front & rear shock shafts are designed specially for GT on-road platform. The shocks are longer for increased set-up possibilities and to allow more suspension travel.

The shock caps feature 4 bleed holes for easier building and more precise rebound control. Multiple shock membrane choices are available to tune the suspension to a wide variety of track conditions.

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

Shock Pistons.

Ultra-precise shock pistons feature 6-, 8- and 10-hole options. The big-bore pistons are molded from tough, well-proven Delrin® material to provide smooth action and durability. The precision molding production process ensures perfect piston roundness after production, so that the pistons move super-smoothly inside the shock bodies for identical perfect action in all four shocks.

Engine Mounts.

High-grade, CNC-machined aluminum engine mounts are made of lightweight alloy, and they help to dissipate engine heat. The engine mounts are easily adjustable from the bottom of the chassis to obtain proper gear mesh.

Radio Box.

The GTX8 includes the Hard composite radio box. The Hard material is more rigid at higher temperatures to improve the precision of servo movement and has more room for the receiver battery pack.

The 1-piece 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.

Fuel Tank.

The GTX 150cc extra-large fuel tank was redesigned to comply with the rules featuring the transient jet that ensures the internal volume of the fuel tank cannot be changed by adjusting the fuel line.

The extra-strong fuel tank features an integrated floating stone filter that ensures that the fuel pickup will always be in the correct orientation, even if your car isn’t.

Internal baffles inside the fuel tank ensure that the fuel will always be in the area around the fuel line intake so even during large jumps the fuel will be constantly supplied to the engine.


The compact front foam bumper is made from high-resilience foam. The front upper bumper holder and lower composite bumper are molded from rigid composite to withstand hard crashes.

Hex Hubs.

Ultra-lightweight 17mm wheel hex drive hubs are CNC-machined from Swiss 7075 T6 black-coated aluminum. GTX includes +2mm off-set both front and rear.

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


The drivetrain ball-bearings are greased instead of oiled to maximize the lifespan of the ball-bearings, especially in dusty conditions. For increased reliability, the front and rear transmission ball-bearings as well the 2-speed ball-bearings feature metal shields.

Brake System.

The new braking cams have an updated profile to improve the braking efficiency. The cams apply pressure to the brake backing plates more evenly in the center, improving braking feel and extending the service life of the brake pads.

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

The laser-cut, precision flat-ground steel brake disk provide fade-free braking in conjunction with the include 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.


To guarantee maximum reliability, all turnbuckles are manufactured from a special blend of HUDY Spring Steel™ which is specifically formulated for turnbuckles. The turnbuckles have a tougher core and are well suited for steering system and rear upright linkages. 


XRAY’s self-designed GTX8 body – made from high-quality Lexan™ material – features high-downforce areas: front windscreen for proper airflow, and side downforce areas for higher stability. The high-performance, low-profile aerodynamic body was designed by XRAY to perfectly fit the GTX8. The rear part of the body includes 3 wing struts for added durability; a high-strength wing is included.

The GTX8 body is available as an option only. 

Weight Balance Adjustment.

Weight balance on the GTX8 is easy to adjust for different track conditions. Weight can be moved to the front, middle, or rear by moving the suspension arms as required to get the best handling.

Adjustment Possibilities.

The GTX8 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
• Roll center positions
• Bump steer
• Wheelbase
• Ackermann
• Adjustable shocks
• Adjustable front and rear diffs
• Adjustable XRAY Multi-Flex™

Instruction Manual.

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.

Chassis Balance.

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

Silicone Oils.

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.

Graphite Grease.

The GTX8 includes premium HUDY Graphite Grease - a high-performance, advanced-technology semi-fluid lubricant which incorporates both extreme pressure additives and finely-dispersed graphite for superior load carrying.

HUDY Graphite Grease is intended primarily for the lubrication of rotating parts and loaded gears. In addition to providing outstanding load carrying, it is formulated to have excellent adhesion and resistance from "flinging off" under extreme conditions. HUDY Graphite Grease reduces wear and increases parts life.

Click here for more information of the full HUDY Grease range

VIP Customer Treatment.

Owning an XRAY model racing car is an experience unto itself. Not only will you own the most premium luxury model racing car in the world, but you will also become a member of the prestigious family of XRAY owners with direct support and service from the XRAY factory. XRAY brings you the most up-to-date RC website on the Internet, with daily racing news, and the latest product developments. If you have any questions, problems or comments, you can ask the XRAY Support Team or any XRAY Factory Team Driver on the XRAY Support Forum. You can even upload your own set-up sheets or download from the thousands of different set-up sheets available from around the world at the exclusive XRAY Virtual Set-up Sheet Database. And that is only the start of the VIP treatment you get by joining Team XRAY.