The GTXE is typical XRAY – premium, professional, high-competition RC car for the most demanding racers, developed with attention to detail and backed by premium service & support…a luxury masterpiece.
With XRAY's uncompromising design philosophy bringing everything together to make the best GT electric car, the GTXE captures the unique XRAY character, born of precision craftsmanship, highest attention to detail, and using the finest materials.
I designed and hand-made my first off-road cars back in 1986, and they were dominating the races thanks to unbeatable reliability and superior performance. Years later in 2004 we debuted 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 XB8E and GTX8 platforms, we worked with the XRAY R&D team to create the finest, highest-performing GT electric car. I am happy that we carried forward the legacy of my first off-road car into this new platform… one that can 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 GTXE is second to none amongst GT electric cars. All parts are purpose-designed and manufactured by XRAY, so everything fits and works perfectly together.
My commitment to perfection carries over into the GTXE 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 of improving our products by continuous development and testing to ensure that you always get the best-performing GTXE straight out of the box.
XRAY GTXE Designer
The GTXE 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.
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 GTXE is truly a masterpiece.
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.
The chassis is specially designed for the electric version to allow for the best chassis flex, weight balance, and clean chassis design.
Front and rear chassis braces have significant influence on chassis stiffness and flex, and as such have a great impact on handling under different grip conditions.
The longer rear brace is moulded from a medium-stiff composite mixture for proper flex & rigidity, and allows the mounting of optional graphite inserts to reinforce the brace to make it even stiffer (suitable for high-traction conditions).
The battery plate design allows to move battery more frontwards or rearwards, giving significant influence on weight balance adjustment.
The rear of the plate has a dedicated area for speed controller placement. Velcro® strips are included for quick & easy battery mounting.
The layout of the electronics placement was designed with the attention to the optimum weight distribution and weight balance. During the design and prototyping phase several different layouts were tested and an extensive amount of data was collected, compared and evaluated by the factory team before the final design was chosen.
Weight balance on the GTXE 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 achieve the best handling.
Diff bulkheads are an important chassis component, housing both the front and rear differentials and providing mounting points for the suspension mounts and shock towers.
The diff bulkheads have been designed for extreme durability, while providing easy access for tuning and maintenance.
XPBS™ (XRAY Pivot Ball Suspension) is a uniquely innovative concept and intelligent R&D design. The ultra-robust pivot ball suspension has integrated suspension geometry adjustment, with different kingpin plates being optionally available.
The complete integrated suspension geometry adjustment includes:
• Track Width
• Bump Steer
• Upper Roll Center
• Lower Roll Center
• Kingpin angle
Suspension geometry is one of the most important features of any RC model car, while still being one of the most difficult & challenging features to design properly.
Suspension is always a mixture of:
• Design & shape of individual suspension parts
• Flex & hardness
• Mounting system
• Geometry & position of mounting points of connecting parts
From the suspension arms, through the suspension blocks, to the robust steering blocks… every suspension part has been carefully designed for the 1/8 racing platform to provide responsive racing characteristics in all conditions.
The aluminum suspension holders feature Integrated Suspension Settings™ (I.S.S.) which allows for quick & easy suspension geometry setting.
Using eccentric suspension bushings inserted into aluminum suspension holders – as well as additional suspension shims – the GTXE suspension geometry can be completely adjusted in mere seconds.
XPBS™ steering blocks are unique, innovative, smart... an authentic XRAY innovation.
The steering blocks feature the following integrated geometry adjustments:
• bump steer
• kingpin angle
The steering block consists of a super-lightweight composite steering block and stiff Swiss 7075 T6 kingpin plate. The steering block is mounted via massive pivot balls into the upper & lower suspension arms.
The upper pivot ball is mounted into an adjustable upper ball joint and via roll center shims to the kingpin plate; this assembly allows camber and upper roll center adjustment. Using shims of various thicknesses, the upper roll center can be adjusted quickly & easily.
The lower pivot ball is mounted into the steering block via an adjustable alu nut and composite bushing. By adjusting the pivot ball, both track-width and camber can be adjusted.
• A higher roll center (more shims) is recommended for grippy, high-traction tracks as well as bumpy tracks.
• A lower roll center (fewer shims) is recommended for slippery & smooth tracks.
The included kingpin plate offers two different mounting possibilities: either 0° or 7°
The ultra-tiny XPBS™ rear uprights are unique, innovative, and smart… pure XRAY.
The rear upright consists of a super-lightweight composite upright block and stiff Swiss 7075 T6 mounting plate.
The upper roll center plate has a unique design that allows easy changing of roll center position. The roll center plate features 2 roll center positions; by reversing the orientation of the plate another 2 roll center positions are available. The roll center adjustment range is 2.5mm. The roll center height of the upper camber link can be adjusted via shims of various thicknesses. The composite upright features 2 lower roll center positions.
The outer suspension pin – on which the rear upright sits – features 2 shims which allow for additional wheelbase adjustment.
The uprights feature integrated geometry adjustments including:
● upper & lower roll centers
The front upper suspension is part of the innovative, unique XPBS™ suspension concept. Extra-strong, robust front upper arms are mounted to the front bulkhead assembly into the front shock tower and adjustable suspension holder. Using eccentric bushings, front inner upper roll center can be easily adjusted.
Caster is easily adjusted using caster clips which are inserted either in front of or behind the front upper arms.
The ball link is inserted into the upper arm and the integrated adjustable turnbuckle can be accessed from outside for quick & easy camber link adjustment.
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.
The dual-arm steering system is simple yet effective, featuring an integrated, easily-adjustable servo saver and Swiss 7075 T6 aluminum steering plate.
Ackermann can be quickly & easily adjusted by changing steering link mounting positions on the steering plate.
Bump steer is easily adjusted by shims between the steering plate and steering linkages.
The GTXE has a conventional shaft-drive 4WD drivetrain featuring:
• front & rear gear differentials with adjustable oil viscosity, 46T crown gears, and 14T pinion gears
• central 49T spur gear
• front, rear, and central CVD drive shafts
Rubber-sealed composite differential housings feature steel inserts that are manually precision ground after the molding process to guarantee a perfect fit with no vibration. Differential internal gears are made from pressed steel, which are then heat treated and machined for ultra‑high precision and smooth operation.
Differential main gears are manufactured from HUDY Gear Steel on a precision manual gear machine. The material was specially formulated and developed for use in gears. All gears are hardened to provide the longest possible lifespan.
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.
GTXE constant velocity drives (CVDs) are manufactured from world-renowned HUDY Spring Steel™. The drive shafts are some of the world‘s thinnest yet most durable drive shafts used in off-road RC cars.
The larger & stronger central outdrives feature protective rubber boots, thick 3mm pins, and protective locking rings.
All drive shafts and outdrives are hardened with a proprietary hardening process to provide unbeatable lifespan and reliability.
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.
Machined from extra-thick premium-grade graphite, the shock towers are light weight and very strong. Front and rear shock towers include multiple shock positions as well as multiple roll center positions.
The GTXE big-bore shocks have a special construction that offers superior reliability and performance.
The oversized big-bore shocks feature 18.5mm outer diameter shock bodies, 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.
Ultra-precise shock pistons feature 6-, 8- and 10-hole options.
The large 16.0mm inner diameter of the shock bodies ensures proper & consistent shock oil flow through the perfectly-round pistons while they travel inside the smoothly-finished interior of the shock body. The result? More consistent damping characteristics.
GTXE springs have been specifically designed to complement the big-bore shocks.
XRAY shock springs are manually measured, selected, and matched into pairs to guarantee precisely equal length and damping characteristics.
Ultra-precise shock pistons feature 6-, 8- and 10-hole options. The big-bore pistons are molded from tough, well-proven Delrin® material for 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 shocks.
The center solid axle is a precision-manufactured, super-smooth layshaft made from tough HUDY shaft steel, which is additionally heat treated for superior strength and long life.
The gear adapter is CNC-machined from Swiss 7075 T6 for super-precise and wobble-free installation of spur gear.
The motor is connected to a mounting plate, with the assembly then inserted into an integrated motor holder/drivetrain support. The design of this system allows quick & easy motor rotation to adjust gear mesh, and then clamping into position to prevent further movement.
The motor mount is machined from Swiss 7075 T6 and is 2mm wider for improved durability.
The receiver box is mounted on the same graphite plate as the servo. The graphite plate is connected to the chassis by an aluminum holder and stand that can be easily removed from chassis for cleaning and maintenance. You need only to remove 3 screws from the bottom of the chassis to remove the servo and receiver box.
Anti-roll bars are manufactured from spring steel material. The front & rear roll bars are easily mounted to the diff cases, and can be adjusted using the connected linkages.
Anti-roll bar wires of different thicknesses are optionally available for fine-tuning.
The compact front 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.
XRAY’s self-designed GTX body – made from high-quality Lexan™ material – features high-downforce areas: front windscreen for proper airflow, side downforce areas for higher stability. The high-performance, low-profile aerodynamic body was designed by XRAY to perfectly fit the GTX and GTXE. The rear part of the body includes 3 wing struts for added durability; a high-strength wing is included.
The GTXE body is available as an option only.
The GTXE 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:
• Ride height
• Lower roll center
• Upper roll center
• Bump steer
• 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 in the chassis plate for easy balancing with the HUDY Chassis Balancing Tool #107880.
Drivetrain ball-bearings now include grease instead of light oil to maximize the lifespan of the ball-bearings, especially in dusty conditions. A full set of 22 high-speed, blue-sealed ball-bearings are used throughout the drivetrain to ensure maximum efficiency.
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 get for your car are exactly same as those used by the factory racing team, thus ensuring very exacting set-ups and handling.
The GTXE 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.
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.
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.