XRAY XT2 1/10 Stadium Truck
Based on the ultra-successful XB2 platform, I proudly present to you the XT2 – the ultimate 1/10 stadium truck sharing the XRAY’s commitment to engineering perfection, design, performance and support, all made possible by state-of-the-art in-house manufacturing. The XT2 is the pinnacle of perfection… typical for XRAY.
Dipl. Eng. Juraj Hudy
XRAY Chief Designer
The XT2 is typical 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 our long-term experience with the World Championship XB4 platform, we applied all that knowledge to the XB2 platform and created the XT2 stadium truck. Long-term tested in real racing conditions, the XT2 is a real racecar straight out of the box.
XRAY XB2 Designer
Designed in virtual reality using the world’s most sophisticated CAD systems, and manufactured using the world’s best machining and molding machinery, the XT2 achieves a level of perfection in all details that is second to none.
I designed and hand-made my first off-road cars back in 1986, and they dominated the races due to their unbeatable reliability and superior performance. Many years later in 2004, we started our first mass-production XRAY XB8 followed by the 1/10 off-road platform based on our long-term experiences, knowledge, and R&D expertise gained over decades. I carry heritage into the future, always improving along the way.
Dipl. Eng. Juraj Hudy
XRAY Chief Designer
With countless wins in multiple classes at local, regional, national, and international levels, XRAY has become the standard by which all other racing cars are measured. The XT2 brings a new level to the high-competition world of stadium truck racing.
My commitment to perfection carries over into the XT2 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 improving our products by continuous development and testing to ensure that you always get the best-performing XT2 straight out of the box.
XRAY XB2 Designer
Successful development of XRAY off-road platforms would not have been possible without the involvement of the entire racing team working tirelessly throughout the racing seasons to test new ideas, prototypes, and improvements. The racing team travels to all major races around the world to provide XRAY drivers with 1st -class support and service so they can be assured that they always get 1st class treatment as part of the XRAY team.
Made in Europe.
Designed, developed, and fully manufactured in-house at the XRAY factory in Slovakia, Europe, using the most high-tech German and Swiss machines and premium European materials, crafted with XRAY’s legendary attention to detail by our artistic production specialists. The XT2 is truly a masterpiece.
CNC-machined from high-quality 2mm Swiss 7075 T6 aluminum, the chassis is lightweight without affecting strength or rigidity, and is additionally black coated at XRAY’s own in-house fully robotic coating line.
Weight distribution, chassis width & length, and proper flex have all been incorporated into the design of the chassis.
The invention of XRAY Multi-Flex Technology has resulted in some of the most significant milestones in RC model car development in the last decade. This innovation has not only resulted in awards and accolades, but has proven to be a distinct competitive advantage at tracks worldwide to help XRAY cars dominate races at local and national levels.
The XT2 incorporates Multi-Flex adjustment technology, which allows tuning the chassis flex for different track conditions.
Regardless if the track has low, medium, or super-high traction, you can adjust the chassis flex to suit track conditions to gain a distinctive advantage.
The electronic layout allows for moving the batteries frontwards/rearwards, as well as using standard or mid-size servos and either using short pack or saddle pack batteries.
Side guards are an integral part of the XT2 Multi-Flex system. Moulded from medium-hardness composite material, the side guards make the chassis frame flex suitable for the majority of track conditions.
There are two different chassis braces available – medium (included) and hard (optional) – which are suitable for particular track conditions.
The included side guards are moulded from medium-hardness composite and make the car faster in corners.
An optional hard-hardness composite moulded braces give the car increased stability on jumps.
The front lower chassis brace is another component of the Multi-Flex system that influences flex and handling. There are two different chassis braces available – medium (optional) and hard (included), each suitable for particular track conditions. The brace is mounted directly to the chassis to hold the entire front assembly and front suspension, including the front protection bumper.
An optional medium-hardness composite molded brace is suitable for low- and medium-traction tracks.
The included brace is moulded from hard-hardness composite and is suitable for high- and very-high-traction tracks.
As a part of the Multi-Flex system, the front upper deck is used to adjust chassis flex. XT2 includes two different upper decks – medium and hard one, each suitable for particular track conditions.
The medium-hardness upper deck is great for low-and medium-traction conditions.
For high-traction and very-high traction conditions the hard upper deck can be used.
The XT2 gear box is designed with all the finest details and craftsmanship incorporated. All parts fit perfectly together, and the super-easy access to the rear differential will be appreciated by every racer. The durable gear box houses the differential with all the rear transmission, and allows the mounting of the rear roll center holder, motor plate, and rear shock tower.
Gear Box Gears.
There are two different gears configurations.
- 3 gears configuration – increases stability, provides higher corner speed and more effective braking but has less chassis roll.
- 4 gears configuration – increases traction and has increased chasiss roll but brakes less.
Easy Diff Access.
Access to the rear differential is super easy. By just releasing a few screws on the rear cover of the gear box, the differential can be easily taken out and inserted back inside without the need for further disassembly. Smart engineering.
The XT2 is a conventional gear-driven 2WD off-road car featuring:
- Rear gear differential with adjustable oil viscosity, featuring 53T gear and internal satellite gears
- 36T graphite composite idler gear
- 20T super-lightweight Swiss 7075 T6 hardcoated aluminum top shaft
- adjustable slipper clutch with 81T main spur gear
- rear CVD drive shafts
The XT2 rear gear differential is offering increased on-power steering that is beneficial on nearly all types of tracks but is especially great on carpet and astro turf.
The super-smooth gear diff includes a composite case and cover with internal satellite gears precision-molded from special XRAY-developed graphite composite material, ensuring long lifespan and super-smooth efficient operation.
The optional ball differential is recommended when XT2 is used on very-low to medium-traction dirt and clay surfaces. The externally-adjustable ball differential is machined from HUDY Spring Steel and is additionally hardened for extra durability and long lifespan. A high-quality carbide thrustbearing and carbide balls are included for ultra-smooth operation. The ball differential comes factory pre-assembled.
#325000 Ball Adjustable Differential – Set – HUDY Spring Steel.
Power from the motor is transferred to the drivetrain via an externally-adjustable central slipper clutch for quick & easy tuning. The 3-pad slipper clutch ensures super-smooth clutch operation and efficient and consistent braking. It is very easy to make ultra-fine adjustments to the clutch externally.
The slipper clutch pads are made from ultra-efficient SLS material with very high slip efficiency, thus allowing very precise slip adjustment.
The lightweight slipper plates are machined from premium Swiss 7075 T6 and additionally hardened before a final black surface treatment. The plates have a machined relief which decreases the friction surface to assist with clutch slip adjustment. With this plate design, pressure is focused on the circumference of the clutch pads for increased efficiency.
Precision-molded spur gears are made from XRAY’s exclusive secret blend of composite material, allowing the gear to run true yet be robust enough to handle high-performance brushless motors. The spur gears are designed to have the lowest possible weight while staying strong and light. Each gear is stamped with the tooth number for easy identification.
The XT2 is equipped with an 81T spur gear which suits the majority of tracks. For additional tuning, optional 75T, 78T, 84T and 87T spur gears are available.
XT2 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 electric off-road cars.
Hardened with a proprietary hardening process, the drive shafts provide unbeatable lifespan and reliability.
The black-coated Swiss 7075 T6 aluminum motor plate holds the slipper clutch assembly as well as the gear box, and features an adjustable motor plate position. To reinforce the assembly, the motor plate is connected via a motor plate brace to the upper brace mounts.
Changing batteries is quick & easy with the included battery strap with aluminum nuts. The battery pack can be installed either frontwards or rearwards, and the included foam spacer helps to ensure the battery pack will not fall out. The chassis layout allows the use of either short packs or saddle-pack batteries.
There are two different battery straps available – composite (included) and adjustable graphite (optional), each suitable for particular track conditions.
The included composite battery is suitable for low-, medium- and high-traction tracks.
An optional adjustable graphite battery strap is suitable for very-high traction tracks and suggested especially for carpet racing.
Correct suspension geometry is one of the most important features of any RC model car, while at the same time being one of the most difficult & challenging features for a designer.
Suspension is always a mixture of:
- design and shape of individual suspension parts
- flex and hardness
- materials used
- mounting system
- geometry and position of mounting points of connecting parts
From the suspension arms, through the suspension blocks, to the light yet robust steering blocks, every suspension part has been carefully designed for the 1/10 off-road racing platform to provide responsive racing characteristics in all conditions.
I.S.S. Suspension Holders.
The aluminum suspension holders feature Integrated Suspension Settings (I.S.S.) which allows for quick & easy suspension geometry set-up.
Using eccentric suspension bushings – which are inserted into Swiss 7075 T6 aluminum suspension blocks – as well as additional shims and turnbuckles, the XT2 suspension geometry can be completely adjusted:
- rear roll-center
- Suspension Arms.
XT2 suspension arms are the result of long-term testing of different designs and layouts. Length, thickness, flexibility, geometry, and materials used… these are all part of the concepts and details that are thoroughly reviewed to create optimum suspension arms.
The suspension arm itself is rigid enough to provide a responsive feel, yet soft enough for extreme durability. The exclusive composite mixtures used for suspension arms are a perfect balance between reliability and performance.
There are three different suspension arms available: medium (optional), hard (included), and graphite (optional), each suitable for particular track conditions.
The caster blocks are very lightweight, yet their construction makes them very stiff & rigid. Caster can be adjusted with values 0°, 2.5°, or 5° using included caster bushings.
There are two different caster blocks available: medium (optional) and hard (included), each suitable for particular track conditions.
The tiny-yet-tough steering blocks are comprised of composite steering blocks and graphite Ackermann extensions for variable Ackermann positions.
The composite blocks are moulded from a special composite mixture for maximum strength.
There are two different steering blocks available – medium (included) and hard (optional), each suitable for particular track conditions.
The super-compact rear uprights feature 6 different upper roll center positions. The rear uprights feature 0° toe to ensure stability and to prevent suspension geometry changes in hard crashes.
There are three different uprights available: medium (optional), hard (included), and aluminum (optional), each suitable for particular track conditions.
Roll Center Holders.
Both front & rear suspensions feature adjustable suspension holders with multiple roll center positions.
There are three roll center holders available: medium (optional), hard (included), and aluminum (optional), each suitable for particular track conditions.
Wheelbase & Weight Balance Adjustment.
Outer suspension pins holding the front caster block and rear uprights feature wheelbase shims for quick & easy wheelbase and weight balance adjustment. Using included shims in rear and in front, both front and rear blocks can be moved forward or rearward to adjust weight balance depending on track condition.
By moving the arms to the front, the balance & weight of the car are transferred more to the rear; this is recommended for medium- and high-traction conditions. By moving the arms to the rear, the balance & weight of the car are transferred more to the front.
Ultra-lightweight 12mm wheel hex drive hubs are CNC-machined from Swiss 7075 T6 black-coated aluminum. These ultra-true hex hubs have a clamping design which ensures ultra- solid mounting of the wheel on the hub.
The rear alu hex hubs are specially machined to reduce rotating weight while guaranteeing wobble-free wheel mounting.
To adjust track-width, optional offset wheel hex drive hubs are available.
The dual-arm steering system is very simple yet effective. The steering system is fully bearing-equipped with 8 high-speed ball-bearings for very precise steering. The Ackermann is easily adjusted by quickly & easily changing the steering link mounting positions on the steering plate.
Bump steer is easily adjusted for more aggression by inserting a shim between the steering block and steering linkage.
Ackermann is also easily adjusted by inserting a shim on the steering plate as well changing various graphite extension plates on the steering blocks.
For maximum reliability, all turnbuckles are manufactured from special HUDY Spring Steel material for turnbuckles which features a tougher core. These turnbuckles are used for front & rear upright linkages and steering system.
Front Lower Arm Mount.
The lower composite arm mount is an important part of the chassis where the lower arms mount, and the block has an integrated 26° kick-up angle. Optional aluminum and brass arm mounts are available for further weight balance adjustment.
Composite Front and rear shock towers include multiple shock positions, and the rear shock tower also holds the wing mount.
Well-built, reliable shock absorbers are extremely important for super-smooth suspension action on any type of track. The shocks on the XT2 have been specifically designed to be built easily, perform consistently, and last reliably. Careful attention was paid to the smallest details during the design process, as well as during long-term testing in various conditions.
The shocks are membrane-free, yet they still allow for easy, consistent building and rebound setting using the bleed-screw shock cap design.
Downstop is adjusted using composite shims under the pistons. Upstop travel is adjusted using composite shims under the shock collar.
The aluminum body, lower nut, and bleeder shock caps are all machined from premium Swiss 7075 T6.
Shock rods are machined from special steel material, precision hand-ground for maximum smooth operation, and additionally hardened for improved lifespan.
Shock pistons are made from Delrin® and are molded using ultra-high precision moulds. All-new 2-hole pistons (1.6mm and 1.7mm holes) are now included in the set.
The XT2 springs have been specifically designed to complement the shocks.
The XT2 springs, like all other XRAY springs, are manually measured, selected, and matched into pairs to guarantee precisely equal length and damping characteristics.
There are two types of springs offered:
Beefy 6mm thick body posts are made from special composite material that provides maximum strength but sufficient flex to reduce body post breakage in hard crashes or if the car flips over. The body supports are rounded to have a better fit and provide better support to the car body.
For ultimate tuning and adjustment, XRAY offers optional body height adjustable body posts which allow the independent front & rear body height adjustment by +1mm or +2mm.
Anti-roll bars used to stabilize the car are manufactured from spring steel material. The included front anti-roll bar is mounted to the front body mount and can be easily adjusted via linkages.
In specific track conditions when the rear of the car must be stabilized, an optional anti-roll bar (#362400) can be easily installed. The anti-roll bar is mounted to the rear roll center holder and can be adjusted via the included linkages.
Anti-roll bar wires of different thicknesses are optionally available for fine-tuning; the wire thickness is laser-engraved for easy identification.
Body & Wing.
The XT2 body features high-downforce areas (including front window and top roof flow channels) for proper air flow, and side downforce areas for higher stability. The high-performance, low-profile aerodynamic body was designed by XRAY to perfectly fit the XT2 and work in most track conditions. The body is made from high-quality premium Lexan material.
Effective rear wing was designed to work perfectly with the XRAY XT2 body. Made from strong Lexan material, the wing is supported on the wing mounts by extra flat shims to better support and extend the life of the wing.
A full set of 22 high-speed, blue-sealed ball-bearings are used throughout the drivetrain to ensure maximum efficiency. All bearings are degreased and oiled with AeroShell® Fluid 12 for maximum smoothness and long life.
The extensive range of adjustment possibilities includes: caster, camber, toe, kick-up, anti-squat, ride height, downstops, track-width, lower roll center, upper roll center, roll center position, bump steer, wheelbase, Ackermann, adjustable shocks, adjustable rear diff, adjustable slipper clutch, and adjustable XRAY Multi-Flex.
Chassis design focuses on balanced weight distribution and weight transfer. The chassis features pre-drilled holes for additional weights for optimum car balancing. Centerline holes are pre-drilled for easy balancing with the HUDY Chassis Balancing Tool #107880.
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 XT2 includes premium HUDY Graphite Grease which is a high-performance, advanced-technology semi-fluid lubricant which incorporates both extreme pressure additives and finely-dispersed graphite for load carrying. It 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 to “fling-off” under extreme conditions. The grease reduces wear and increases parts life. HUDY Graphite Grease.
The XT2 is one of the most adjustable electric 2WD stadium trucks in the world. Whether you are a hardcore racing enthusiast or a club-level sportsman, you can very easily adjust the XT2 to suit your racing style, track type, and track conditions.
To fully understand the set-up possibilities, we recommend the legendary HUDY Set-up Book, loaded with over 40 pages of high-quality pictures and easy-to-understand 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 XT2. The HUDY Set-up Book is available for download exclusively at www.hudy.net
XRAY Instruction Manual.
XRAY Instruction Manuals have become the industry standard, being 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 clearest possible way.
XRAY VIP Customer Treatment.
Owning an XRAY model racing car is an experience on its own. 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 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 all around the world at the exclusive XRAY Virtual Set-up Sheet Database, the world’s largest set-up sheet database. And that is only the start of the VIP treatment you get by joining Team XRAY.
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