At one of the world’s most competitive off-road races – the ROAR National Championship, it was XRAY’s Ty Tessmann who brought the ROAR National Champion title to the XT8 platform. Tested and successfully run in the highest competition races so you can enjoy the same winning platform.
Based on the ultra-successful XT8 platform, XRAY proudly presents the new XT8E. The new electric kit incorporates the latest improvements and refinements of the XT8 platform developed by the team and race-proven in the high-competition races around the world.
Being responsible for R&D at the XRAY off-road division, I was actively involved in the XT8 project. I can assure you that not even the smallest detail was overlooked.
With the huge amount of effort, time, and energy our R&D team put into this project, you can be sure that the XT8 is nothing less than the highest-competition, premium truggy capable of winning any race. You will be amazed by the superior handling and reliability of the new XT8 and XT8E.
XRAY XT8 Designer
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 XT8 is truly a masterpiece.
With attention to the smallest details and a mandate to simplify servicing of the car, the all-new XT8E features cross-platform compatibility to ensure you can use the same car platform for both nitro and electric powered version making it either XT8 or XT8E. Most of the parts between XT8 and XT8E are fully compatible.
The XT8E front C-hub suspension was redesigned using zero kingpin steering blocks with interchangeable steering plates and new CVD drive shafts.
The super-lightweight composite zero kingpin steering blocks feature exchangeable steering plates to easily adjust the Ackermann.
The steering blocks feature an inset aluminum bushing that is molded into the steering block itself, ensuring a lightweight, precise and durable steering block assembly.
This enables the kingpin screws to be firmly held in the aluminum threaded bushing while the end of the screw is self-locked in composite to prevent the screws from loosening during racing.
The molded-in aluminum bushings allow the steering blocks to turn freely ensuring precise steering reaction. The super-tiny steering blocks are molded from a lightweight yet very strong and durable composite material.
The new XT8E features CVD drive shafts both front & rear.
All drive shafts are manufactured from world-renowned HUDY Spring Steel™, resulting in some of the world‘s thinnest yet most durable drive shafts used in off-road cars. All drive shafts and outdrives are hardened with a proprietary hardening process to provide unsurpassed lifespan & reliability.
The central larger & stronger outdrives feature protective rubber boots, thick 3mm pins, and protective locking rings.
The new XT8E chassis was designed to fit both XT8E and XT8 components without modification, simplifying the conversion process between electric and nitro. This reduces the components required to swap between the two powertrains.
The chassis features a new mounting position for the updated rear brace.
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 rear wing holder is a super-slim, 1-piece design that reduces weight and increases strength.
The complete wing mount is 40% lighter than the previous version, significantly reducing the weight behind the rear suspension and lowering the CG. The wing holder provides maximum stability while still allowing some flex during impacts.
To help prevent rear bulkhead breakage during crash impacts, the new rear wing mount features a wing holder brace that transfers crash impact energy from the wing and shock tower to the chassis instead of directly to the bulkhead.
Aluminum shock towers are CNC-machined from premium Swiss 7075 T6 and then additionally coated. The stiff aluminum towers, along with the new rear wing mounting positions, give better performance on high-traction tracks.
The rear uprights were redesigned and feature new larger outside 8x16x5mm ball-bearings for increased reliability and lifespan. To expand the set-up choices, an additional lower roll-center adjustment position was added.
The smart design allows the same upright to be used on both left & right sides. The rear uprights feature integrated geometry adjustments for camber, upper and lower roll center and wheelbase.
Two shims allow positioning the hub forward/backwards along the outer suspension pin to adjust wheelbase.
The new XT8E shocks now include the softer ribbed membrane. The XT8E big-bore, long-stroke shocks are of special construction, offering increased downtravel, reliability & performance.
Oversized big-bore shocks feature 16.2mm I.D. shock bodies which are externally threaded for use 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.
The lower shock assembly ensures very free movement of the shock rod inside the shock body, while at the same time minimizing oil leakage and keeping dirt out. Two shock O-rings – manufactured from a superior silicone compound to allow ultra-free movement of the shock rod while still maintaining a tight seal – are installed in the lower part of the shock body and are secured with composite shims. The entire lower shock assembly is secured with the lower aluminum shock cap which makes assembly/disassembly very quick & easy.
Thick, robust shock shafts will handle all abusive racing conditions and big jumps. The 3.5mm thick shock shafts are precisely machined from special high-tensile steel, and afterwards are ground to a super-smooth finish to ensure smooth movement.
Spring steel anti-roll bars – carried over from the XB8 platform – are used to stabilize the truggy. The new 2.6mm front anti-roll bar improves the corner speed.
The front & rear anti-roll bars are easily mounted to the diff cases and can be fine-tuned using the adjustable linkages.
Optional anti-roll bar wires of different thickness are available for fine-tuning your set-up.
I designed and hand-made my first off-road cars back in 1986, and they dominated the racing scene thanks to unbeatable reliability and superior performance. Years later in 2004, we started our first mass-production XRAY XB8 platform based on our long-term experience & knowledge, followed soon thereafter by the XT8 truggy platform.
Since the release of the XT8 platform, we have continued our dedicated work of refining the platform to bring forth the latest improvements & innovations. With our focus on no-compromise performance, the XT8 has undergone a major platform upgrade to ensure the XT8 will stand out in the crowd and take you to the Winners Circle.
Dipl. Eng. Juraj Hudy
XRAY Chief Designer
The all-new XT8 was developed with vast input and dedicated work by the entire racing team, with major influences and significant improvements incorporated by World Champion Ty Tessmann.
All the incorporated refinements on the XT8 were tested in “blood, sweat, and tears” in North America at various tracks…from fast packaged tracks, through destroyed bumpy tracks, to huge super-jump tracks… to ensure the XT8 would be the one to beat anywhere. The final result is an amazing, completely all-new XT8 platform. Enjoy!
Designed in virtual reality using the world's most sophisticated CAD system, manufactured using the world's best machining & molding machinery, the XT8E achieves a level of perfection in all details that is second to none.
The XT8E is a typical XRAY: premium, professional, high competition for the most demanding racers, developed with attention to the smallest details, and backed by premium service & support…a luxury masterpiece.
With countless wins in multiple classes at local, regional, national, and international levels, the XRAY XT8E is designed for highest-competition racing… and ready to win.
Some information shown below may include details from previous kits, and it may vary slightly from current kit specifications.
The side guards incorporate a larger bottom radius to make the truggy more stable on rough tracks, while increasing longitudinal flex. The side guards are moulded from special composite mixture for increased flex which helps to generate more traction.
The aluminum suspension holders feature Integrated Suspension Settings (I.S.S.™) which allows for super-fast & easy suspension geometry adjustment.
Using eccentric suspension bushings inserted into aluminum suspension blocks – as well as suspension shims – the XT8E suspension geometry can be completely adjusted:
• Front & rear toe
• Front & rear roll center
• Front kick-up
• Rear anti-squat
A complete set of various eccentric bushings is included for complete suspension geometry adjustment. The bushings are inserted into aluminum holders which are machined from premium Swiss 7075 T6.
Front & rear lower suspension arms have a reinforced design which makes them more resilient in jumps and crashes. Outer pivot pins feature self-locking nuts for increased reliability.
All suspension parts on the XT8 platform were purposefully designed & developed for truggy racing. The super-long arms provide maximum stability while the optimum stiffness of all suspension parts ensures maximum traction under all different racing conditions. The super-long suspension arms ensure the best handling over rough terrain and excellent landings from big jumps.
The exclusive composite mixture used for suspension arms is a perfect balance between reliability and performance. The suspension arm itself is rigid enough to provide a responsive feel, yet soft enough to survive extra-long main events.
The unique C-hub suspension on the XT8 platform features Integrated Adjustable CasterTM which enables adjustment of the single C-block through the entire caster angle range; no optional caster blocks needed!
The C-block features an inclined kingpin design for increased steering and stability.
The C-hub suspension includes now steel caster bushings and ball mounts instead of composite versions, giving increased strength & reliability.
The dual-arm steering system is reliable and has improved steering characteristics.
Molded graphite servo saver makes the steering more resilient & efficient in dusty conditions. The alu steering plate gives more aggressive steering characteristics, the composite upper top deck ads flex to help steering, and the steering pivot balls feature backstops for increased reliability.
Ackermann can be adjusted quickly & easily by changing steering link mounting positions on the steering plate.
Bump steer is easily adjusted by inserting shims between the graphite steering plate and steering linkage.
The diff bulkheads are reinforced and strengthened for increased reliability. The bulkheads are an important chassis component, housing both the front & rear differentials and providing mounting points for the suspension mounts and shock towers.
The super-strong front & rear bulkheads can withstand rigorous impacts and other abuse during racing conditions. The bulkheads have minimized ball-bearing play, resulting in increased gear teeth lifespan and minimized gear stripping.
The high-volume gear differentials were designed for increased reliability & performance. Differentials feature high-volume cases, and larger internal gears with more teeth for improved differential movement. The larger volume of the differential and the shape of the gear teeth reduce oil overheating. To increase reliability, diff pins have stronger design. The differentials give increased traction and reliability, especially in long runs.
Internal diff gears increase differential reliability and reduce diff oil overheating. The 20T and 10T gears have a larger size and a greater number of teeth to ensure more precise fitment and engagement. Pressed-steel differential bevel and satellite gears are heat-treated and machined for superior precision and smooth operation.
Diff outdrives accommodate the stronger diff pins. The front longer diff outdrive adapters ensure that the drive shafts will not fall out, even in extreme crashes at full steering lock.
To reduce rotating weight, the super-lightweight diff outdrives are machined from HUDY Spring Steel™ which allows unnecessary material to be removed to further reduce weight without affecting durability. The inner portions of the outdrives are additionally hand-ground for maximum precision and fitment into the diff case.
All outdrives are hardened using HUDY’s own special hardening process for extended lifespan and reliability.
XT8 shock springs offer a mix of progressive & linear characteristics. XT8 springs are slightly progressive, but under more compression change characteristics to become more linear. This gives excellent feeling and feedback in all different track conditions.
These XRAY shock springs, like all other XRAY springs, are manually measured, selected and matched into pairs to guarantee precisely equal length and damping characteristics.
Two types of springs are optionally offered:
• Linear: Spring rate is constant during the entire spring compression. Springs with different spring rates are available as optional tuning parts.
• Progressive: Spring rate is not linear, but rather the spring rate get progressively heavier the more the spring is compressed. As the truggy initially enters the corner, the spring works like a softer spring to provide maximum traction. As the chassis begins to roll in the middle of the corner, the spring rate progressively increases until it works like a stiffer spring which allows the truggy to maintain maximum cornering speed.
Ultra-precise shock pistons with 6-, 8- and 10-hole options. The big-bore pistons are molded from tough, race-proven Delrin® material to provide smooth action and durability. The precision molding production process ensures perfect piston roundness, ensuring that the pistons move super-smoothly inside the shock bodies for identical, perfect action in all four shocks.
Ultra-lightweight 17mm wheel hex drive hubs with +5mm offset 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.
To guarantee maximum reliability, all turnbuckles are manufactured from special HUDY Spring Steel™ material for turnbuckles with a tougher core. These turnbuckles are used for front & rear upright linkages, steering system, and servo saver.
A full set of 24 high-speed, blue-sealed ball-bearings are used throughout the drivetrain to ensure maximum efficiency.
The body is mounted on two strong composite body mounts with foam cushions both front and rear. There are two types of rear body mounts included depending on the type of the body used.
The stylish and effective rear wing was designed to provide the appropriate amount of downforce and generate required stability for the truggy. Made from a strong special composite mixture, the wing was designed to survive severe abusive and extreme crashes while keeping its shape.
Rear wing holders are made from a special composite mixture to withstand abuse and crashes, and feature several different wing mounting positions.
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 truggy are exactly same as those used by the factory racing team, thus ensuring very exacting set-ups and handling.
The XT8 includes premium HUDY Graphite Grease - a high-performance, advanced-technology semi-fluid lubricant which incorporates both extreme pressure additives and finely-dispersed graphite for 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.
The XT8 features fully-adjustable front and rear suspension geometry: caster, camber, toe, anti-dive, anti-squat, ride height, droop, track-width, Ackermann and roll centers. For easy and fast 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
• Roll center positions
• Bump steer
• Adjustable shocks
• Adjustable front and rear diff
• Adjustable XRAY Multi-Flex™
The XT8 is one of the most adjustable off-road kits in the world. Whether you are a hardcore racing fanatic or a club-level sportsman, you can very easily adjust the XT8 to suit your racing style, race track type, and all track conditions. To fully understand the set-up possibilities we suggest the legendary HUDY Set-up book, loaded with over 50 pages of high-quality pictures and easy-to-read RC car set-up explanations. Whether you are a novice driver or an experienced racer, you can easily learn many set-up tips & tricks and improve your set-up skills, ultimately translating into improved racing performance with your XT8. The HUDY set-up book is available for download exclusively at www.hudy.net
XRAY Instruction Manuals have become the industry standard, and 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 Instruction Manual contains large 3D illustrations that show all assembly details in the easiest and clearest 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 Web site 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.