XRAY GTX8 ’24 1/8 Nitro On-Road Car

XRAY GTX8 ’24 1/8 Nitro On-Road Car

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From XRAY:
All-New 2024:

  • Complete aluminum front & rear suspension sets included in the kit in addition to the standard composite suspension parts
  • Front aluminum c-hubs and steering blocks increase overall steering and improve consistency
  • Rear alu uprights increase stability on- and off-power
  • Larger super-lightweight ventilated brake disks significantly improve brake cooling and ensure vibration-free operation while reducing rotating mass without sacrificing strength or durability
  • Graphite horizontal body backstop set reinforces the rear section of the body and provides additional protection in a crash

Alu Suspensions.

The GTX now includes the complete alu suspension set worth of 330€ / 363USD* with no additional charge.

The complete aluminum suspension set includes:

  • Front C-hubs
  • Front steering blocks
  • Rear uprights
  • Graphite extensions
  • Hardware & accessories

* Suggested retail price without VAT. Additional VAT and taxes may apply. Prices may vary depending on the exchange rates.

Alu Suspension Set.

The GTX now includes the complete alu suspension set worth of 330€ / 363USD* with no additional charge.

The complete aluminum suspension set includes:

  • Front C-hubs
  • Front steering blocks
  • Rear uprights
  • Graphite extensions
  • Hardware & accessories

* Suggested retail price without VAT. Additional VAT and taxes may apply. Prices may vary depending on the exchange rates.

Front Alu Suspension.

Front aluminum suspension increases overall steering and improves consistency, making the GTX much easier to handle and more reliable.

The ultra-strong construction ensures durability & long life.

Machined from premium Swiss 7075 T6, the front aluminum suspension is suitable for all track conditions.

Front Alu Suspension.

Complete front alu suspension set is now included in the GTX kit with no additional cost.

The front aluminum suspension includes steering blocks, caster blocks 6°, graphite steering plates, steel pivot joints and pivot balls as well all other necessary hardware.

Rear Alu Suspension.

The aluminum uprights provide increased stability on/off-power, and the setscrews secure the hubs with reduced play for consistent handling.

The kit includes the aluminum uprights, along with the graphite camber link mounting plate, ball-bearings and all accessories, for a direct replacement of the standard composite hubs.

The camber link extensions are machined from lightweight carbon fiber to reduce the weight and feature 4 camber link positions.

The aluminum uprights from premium Swiss 7075 T6 aluminum are stronger; ensuring higher reliability and increased life time.

Rear Alu Suspension.

The complete rear aluminum suspension includes rear uprights, graphite extensions with standard geometry and all other necessary hardware.

Ventilated Brake Disks.

Super-lightweight & larger ventilated brake disks have a special design that allows significantly increased cooling of the brakes to ensure vibration-free operation while also reducing rotating mass without sacrificing strength or durability.

The larger disks ensure higher efficiency of the brake system for better overall performance.

Body Backstop.

Graphite horizontal body backstop reinforces the rear section of the body and provides additional protection in a crash. Machined from premium lightweight graphite material for reduced mass.

GTX & GTXE Platform.

Both GTX & GTXE platforms now include front & rear aluminum suspensions which are fully compatible between both platforms.


The chassis plate accommodates aluminum bulkheads and features extra openings in the rear to improve drive train cooling for increased lifespan.


Aluminum bulkhead framework increases reliability and strength while also allowing more airflow for cooling the drivetrain and easier, more convenient maintenance with super easy diff access.

Diff Height Adjustment.

The rear aluminum bulkhead features adjustable aluminum eccentric bushings for easy diff height adjustment.

Drivetrain Cooling.

The aluminum bulkheads and chassis design ensure increased airflow around the components, resulting in better lifespan and reliability.

Gear Differential.

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

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.

Matched Gears.

The differential crown gear and pinion gear feature specially designed profiles of the 46T and 13T gears for a perfectly matched engagement that ensures super smooth operation, less drag and significantly longer lifespan.

Central Dogbone Drive Shafts.

Central drive train features dogbone drive shafts to fit the aluminum bulkhead positions and outdrives with stronger M5 set screws for increased reliability.

Easy Diff Access.

The aluminum bulkhead design gives access to the differentials after removing only 4 screws in rear & 8 screws in front while leaving the entire suspension assembly mounted on the car.


Front and rear braces control the chassis flex for improved traction and responsiveness. Multiple flex options are available to match flex to traction levels. The rear brace is now mounted directly to the rear aluminum bulkhead via an aluminum mounting plate.

Shock Towers.

Front & rear shock towers are matched to the alu bulkhead framework, with both featuring an additional row of shock absorber positions for super fine adjustments. The lower row allows less chassis roll for higher corner speed, while the upper row increases the roll to help increase traction. The rear shock tower features two locations for the rear wing mount position.

Front Top Deck.

The graphite front top deck replaces the previous composite version and accommodates the aluminum bulkheads.

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.

GTX Clutch.

The state of the art GTX clutch ensures highest performance and reliability in any track conditions.

Clutch Bell.

High-acceleration clutch bell features an independent clutch housing with a separate one-piece machined 2-gear 14/18T pinion gear module. Both housing and pinion gear module are hard coated for extra-long life time.

2-Speed Carrier.

The 2-speed gear box features a super-lightweight one-way drive flange for a lighter driveline and a redesigned 2-speed carrier with 47/50T spur gears for a lower gear ratio and better acceleration.

The 1st gear spur is mounted on the lighter adapter to reduce rotating mass and increase drivetrain performance. All these components are kept secure with a graphite upper deck for improved cooling of the brakes and 2-speed housings.


The lightweight foam bumper is 40% lighter than the previous design. The foam bumper and bumper holder were redesigned to integrate with the aluminum bulkheads for proper support and protection.

Anti-Roll Bar.

Ball bearing equipped front and rear anti-roll bar systems mount via aluminum collars to provide easy and precise adjustment while eliminating excessive play for consistent handling and performance.

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


The rear uprights feature graphite roll center plates with multiple mounting positions to match the whole range of offset wheel axles and to increase clearance between wheel and roll center plate when using narrower offsets.

Suspension Holders.

The front suspension holder features center mounting screw to keep the front suspension mounted on the car when other front end components are removed for easier maintenance.

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

The front suspension holder features a center mounting screw to keep the front suspension mounted on the car when other front end components are removed for easier maintenance.

Using the eccentric suspension bushings in the aluminum suspension holders and a few suspension shims, the GTX suspension geometry can be completely adjusted in seconds for quickly dialing in settings for any track condition.

Front C-hub.

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 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.

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.

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 latest GTX features Medium front and Hard rear suspension arms. This combination of arms helps to increase traction in every track conditions.

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 Springs.

The shock springs were specially developed for GT on-road racing. XRAY shock springs are manually measured, selected, and matched into pairs to guarantee precisely equal length and damping characteristics.

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.

Shock Extensions.

Aluminum suspension arm extensions create geometry specific for the needs of the GT category. The shock extensions increase stability and improve the corner speed.

Brake System.

The 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.

Brake Linkage.

Brake linkage assemblies with stiff springs and ball-shaped bushings result in a more reliable and consistent brake operation through even the longest runs.

Ackermann Plates.

The steering blocks feature 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.

Servo Saver.

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

The servo saver posts feature 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.

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.

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.


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.

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, Bump steer, Wheelbase, Ackermann, Fully-adjustable shocks, Adjustable front and rear differentials, 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.

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.


The GTX platform allows to share majority of parts between nitro & electric version.


“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


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


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.

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.
Visit TeamXRAY.com
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Updated: April 15, 2024 — 9:35 AM
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