- New E concept with two different layout alternatives:
- Rear motor position with a single battery position on the left
- Front motor position using saddle pack batteries in the rear
- All-new “Eazy” body makes the car significantly easier to drive
- Redesigned chassis layout to accommodate the new E platform with improved flex characteristics and new balance weight mounting positions
- 2 piece battery holder for saddle pack layout improves balance and lowers vehicle CG
- Standard battery holder moulded from new harder material for reduced flex
- Includes two graphite servo holders, one for each motor/battery configuration
- Compact electronics mount for speedo and receiver when using the saddle pack battery configuration
- Servo saver stands with chassis lock to ensure secure installation and a shorter servo linkage for the new servo position
- Stronger and longer servo saver spring has a greater working range
- Servo saver top deck with two chassis brace positions eliminates servo saver bind
- Shorter 93mm rear drive shafts improve outdrive clearance during extreme suspension travel
The XB8E shares a majority of its parts with the ultra-successful XB8 platform with several details fine-tuned for the electric buggy class. Wherever possible, the XB8 and XB8E share suspension and driveline components to streamline spares and tuning parts between the two cars without making any compromises to on-track performance. This minimizes the number of extra parts needed to support both nitro and electric editions even smaller for the extremely durable recent generation XRAY 1/8 off-road platform.
Unique E concept.
The XB8E’21 features an all-new unique E concept with two different layout alternatives.
1. Front motor position with saddle pack batteries
Second alternative places the motor in front of the center differential opposite the servo, and uses a split, saddle pack battery layout. The motor has better cooling in this front location and the split batteries typically maintain lower temperatures during each run.
Suggested for bumpy tracks and when higher corner speed is required.
2. Rear motor position with a single battery position on the left side
Standard e-buggy position places the battery on one side with the speed control, and the motor, servo and receiver on other side of the chassis.
Suggested for very low grip traction conditions or when more chassis roll is desired. The center of gravity of this layout is generally higher due to battery orientation.
XB8 “Eazy” Body.
The redesigned sides of the body improve stability at higher speeds. The round front cab and profile make the XB8 easier to drive. Some of the redesigned down force areas increase the speed of the car. The central fin on the roof help control the car more precisely making handling more predictable. Overall, the new “Eazy” body is the most significantly improved performance off-road body we have designed.
The front cabin was redesigned with a wider and cab forward design so both left and right sides generate matching downforce even with the cut-out opening for fuel tank.
The body is fully compatible with both the XB8 and XB8E buggies.
XB8 “Eazy” Body Development Stages.
The new “Eazy” Body was created after significant time spent testing dozens of different alternatives until the final design was selected. The new design of the body improves the handling for all skill levels, from local racers to World Champions.
The new “Eazy” Body makes the XB8E more stable at speed and more reactive in the corners.
The new XB8E chassis features a locking system for the servo saver posts to ensure the components will stay secured even after chassis flex in extreme conditions. The chassis layout was redesigned for the new E concept with its two layout alternatives.
The all-new chassis also features new positions to mount optional weights for further weight balance adjustment.
The chassis is CNC-machined from 3mm high-quality Swiss 7075 T6 aluminum; strategically machined in low-stress
To accommodate the two different battery positions there are two different battery holders included in the kit.
Brick alternative – features battery holder for one large battery pack or two standard battery packs. The holder is moulded from a harder material to reduce flex. In this configuration, the battery pack(s) is installed in this left side location together with the ESC.
Saddle pack alternative – features all-new tweak-free split battery holder to mount the saddle packs. This battery holder will accommodate both standard and ‘shorty’ packs, with the shorty packs having the added ability to move front/back for additional weight balance adjustment.
To accommodate two different electronic layouts there are also two different servo holders included in each XB8E kit, one to fit either the single side battery layout or the saddle pack layout. Servo horn position is moved more forward and used a shortened link.
The saddle pack battery layout features a new moulded electronics mounting plate that is positioned next to the servo. The speed control, receiver and transponder are all installed on this plate for easy removal and maintenance.
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 ensures the servo saver setting will not change while running.
To ensure servo saver reliability (especially in dusty conditions), the servo saver is moulded from graphite material which 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 Swiss 7075 T6 aluminum steering plate.
Ackermann is easily adjusted by quickly & easily changing steering link mounting positions on the steering plate. Bump steer is easily adjusted by inserting shims between the steering plate and steering linkage
The rear drive shafts are now 93mm long and help reduce the chances of bind in the outdrives after extreme jump landings that could cause handling irregularities or damage.
All XB8E 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.
Servo Saver Top Deck.
The servo saver top deck was also redesigned. The new top deck features holes for the servo saver that ensure the servo saver will not lock when overtighten and will always work freely.
The new top deck features an extra hole for the front chassis brace. When built using the single sided battery configuration, the left mounting hole is used to prevent driveshaft collision with the chassis brace.
Fits both XB8 and XB8E.
The XRAY XB8E platform displayed its incredible performance advantage by winning the European Championships in the hands of Jean-Pierrick Sartel.
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 XB8E is truly a masterpiece.
World Champion Choice.
“The XB8E is another great vehicle platform from the XRAY line, the quality, performance and handling are second to none. The buggy is very durable and gives me the confidence I need to win races on very demanding tracks like The NEO Race.”
Read my exclusive story about the making of the all-new XRAY XB8 here for an insider’s view of our daily work as RC car designers and what we have all done to make the new XB8 a reality.
XRAY XB8 Designer
Designed in virtual reality using the world’s most sophisticated CAD tools, and manufactured using the world’s best machining and molding machinery, the XB8E achieves a level of premium perfection in all details that is second to none.
“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 followed by the E version based on our long-term experiences, knowledge, and R&D expertise gained over decades, taking over the heritage I brought with me.
Since the release of the XB8 platform, we have continued our dedicated work to refine the platform annually to bring the latest improvements & innovations to make the XB8E stand out in crowd and take you to the Winners Circle.”
Dipl. Eng. Juraj Hudy
XRAY Chief Designer
The XB8E design allows to accommodate either the C-hub or Pivot Ball suspension. The included Pivot Ball suspension can be easily exchanged for the optional C-hub suspension to accommodate to the particular track conditions.
#350907 XB8/XB8E FRONT C-HUB SUSPENSION – SET
The optional C-hub is perfectly suited for smooth and short technical tracks & smooth surface conditions. At these track conditions the C-hub suspension generates increased frontward traction as well increased overall traction with enhanced steering.
The C-hub suspension includes lower suspension arm, steering block with Ackermann plate, C-hub, camber link & Ackermann steering plate.
Pivot Ball Suspension.
The included Pivot Ball Suspension (PB) is perfectly suited for high traction conditions as well as rough tracks. At these track conditions, the PB suspension increases vehicle stability for a much easier driving experience.
With attention to the smallest details and a mandate to simplify servicing of the car, the all-new chassis features cross-platform compatibility to ensure you can use the same chassis either on the XB8 or XB8E.
The rear brace mounting position on the chassis was moved rearwards to improve chassis flex and give increased traction.
The chassis features chamfered front edges which prevents dirt pick-up when the chassis contacts the track. The chamfered edges will not “cut” the dirt, but rather the dirt will slide along the chamfered edges and not get stuck at the front of the chassis.
The side guards were moved 4mm rearwards to ensure that under full throttle and full steering lock the inflated tires will not contact the side guards and can operate freely.
The mounting of the chassis brace to the bulkhead eliminates transfer of energy from the suspension via shock towers to ensure more precise landings and more off-power traction.
The included rear brace is moulded from a medium-stiff composite mixture for improved flex & rigidity, and allows the mounting of optional graphite inserts to reinforce the chassis brace to make it even stiffer for particular track conditions.
Side guards feature a larger bottom radius to give better stability on rough tracks. The radius of the side guards increases the car’s longitudinal flex. The side guards are moulded from a special composite mixture for increased flex that helps generate more traction.
The tough composite side guards protect the car, muffler, and fuel tank from side impacts. The side guards perfectly fit the chassis and seal against dirt.
Optional side guard braces allow for very efficient and easy chassis flex adjustment to adjust the handling of the car to different track conditions. By adding the graphite braces, the entire chassis is reinforced and stiffer flex will improve handling in high-traction conditions.
To improve the performance and reliability, the Pivot Ball suspension arms and optional C-hub suspension are molded from a new composite mixture. The rear suspension arms are molded from an all-new, extra-hard composite mixture that makes the car easier to drive. The front lower and upper arms feature a composite mixture change from soft to medium. The optional front lower C-hub suspension arm is molded from a hard composite mixture.
To increase overall traction in all track conditions, the front anti-roll bars used are 2.2mm and the rears to 2.4mm.
Anti-roll bars, manufactured from spring steel material, are easily mounted to front & rear diff cases with easy adjustment using the adjustable linkages.
Anti-roll bar wires of different thicknesses are optionally available for fine-tuning.
The rear uprights were redesigned and feature larger outside 8x16x5mm ball-bearings for increased reliability and life-span. To extend the set-up alternatives, 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 lower suspension pin on which the rear upright sits features 2 shims for wheelbase adjustment.
The rear uprights feature integrated geometry adjustments including: camber, upper and lower roll center and wheelbase.
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, making them very well suited for the steering system and rear upright linkages.
I.S.S.™ Suspension Holders.
The aluminum suspension holders feature Integrated Suspension Settings™ (I.S.S.) which allows for quick & easy suspension geometry setting. To accommodate the longer rear suspension arms, narrower aluminum suspension holders are used.
Using eccentric suspension bushings inserted into aluminum suspension holders – as well as additional suspension shims – the XB8 suspension geometry can be completely adjusted in mere seconds.
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 super-strong front & rear bulkheads 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 specially-designed ball studs eliminate steering lock and allow greater steering radius. The integrated backstops ensure that the pivot balls do not disconnect in crashes.
Ackermann is easily adjusted on the machined Swiss 7075 T6 steering plate to ensure highest reliability and strength.
To increase the reliability and free movement of suspension even in the extremely dusty conditions, the pivot ball cups are moulded from a new graphite material that ensures more free movement even when dust builds up.
To reduce weight and lower the CG, the front upper pivot balls are combined with a steel threaded part for maximum strength. The aluminum ball is machined from premium Swiss 7075 T6 and additionally hard coated for extended lifespan.
To accommodate the geometry, the XB8E includes rear wheel hubs with a +2mm off-set while the front features the +1mm off-set wheel hubs.
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.
The XB8E is a conventional shaft-driven 4WD off-road car featuring:
- Front & rear gear differentials with adjustable oil viscosity, featuring 46T crown gears and 14T pinion gears
- Central differential with adjustable oil viscosity, featuring 46T spur gear
- Front & rear universal drive shafts, and central CVD drive shafts
Both front and rear differentials are identical for easier maintenance and servicing.
The Large Volume diffs feature higher capacity cases, stronger diff pins, and large internal gears with more teeth for improved differential action, consistency and overall reliability. The larger volume of the differential and the shape of the gear teeth help reduce oil overheating.
Central Diff Gear.
The central differential is an extra-large size for increased reliability and performance. The differential is over 5mm larger, with an increased oil capacity to reduce oil overheating in long runs, helping to keep differential performance as consistent as possible.
Internal Diff Gears.
The 20T and 10T internal diff gears are larger to ensure reliability and reduce diff oil overheating. The greater number of teeth ensures more precise fitment and engagement.
Pressed-steel differential bevel and satellite gears are heat-treated and machined for superior precision and smooth operation.
Updated diff outdrives accommodate the stronger diff pins. The front longer diff outdrive adapters ensure that the drive shafts will not fall out 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.
Diff Gears & Drivetrain Ratio.
To improve the acceleration of the XB8E the central spur gears are larger.
Differential main gears are manufactured from HUDY Gear Steel on a precision manual gear machine. This material was specially formulated and developed for use in gears. All gears are hardened to provide the longest possible lifespan.
A wide range of different gears — spur gears and pinion gears — are available for perfect set-up and tailoring to particular racing conditions.
- Pinions are available in sizes of 12T, 13T, 14T, 15T, 16T and 17T
- Spur gears are available in a range of 46T, 47T and 48T
Center Diff. Access.
Access to the center differential is quickly and easily accomplished by removing eight screws. The lower center diff mount is sized appropriately to allow the use of the optional spur gears, while keeping the mass as low as possible.
The XB8 molded wing was completely redesigned for 2020. The new shape of the wing increases the stability of the car in all conditions and is legal under the new IFMAR wing specifications.
Made from a strong special composite mixture, the wing was designed to survive severe abusive and extreme crashes while keeping its shape.
The optional Lexan wing has an adjustable position and consists of two pieces: the main wing and the center fin that adds more stability and increases strength of the wing around the mounting area. The rear section of the wing is pre-bent to reinforce the wing and eliminates the use of additional heavy composite wickers. This makes the back of the wing strong while still allowing for wing flex in a crash. The pre-bent rear section of the wing is an important detail to create the desired downforce. Used by the factory team and suggested for all track conditions.
Rear Wing Holder.
The rear wing holder has a super-slim, 1-piece design that has reduced weight and increased strength.
The complete wing mount is 40% lighter than the older version, considerably reducing the weight behind the rear suspension as well significantly reducing the CG. The wing holder has maximum stability while still allowing flex during impacts.
Wing Holder Brace.
To help prevent rear gear box breakage during crash impacts, the rear wing construction features wing holder brace that transfers crash impact energy from the wing and shock tower to the chassis where it is centrally resolved.
The wing holder brace includes an integrated body post as well.
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 and easy motor rotation to adjust gear mesh, and yet clamp.
The motor mount machined from Swiss 7075 T6 and is 2mm wider compared to older version for improved durability.
The front shock towers feature two rows of shock positions.
HIGHER shock mounting holes:
Increased traction, recommended for low-traction and rough conditions
LOWER shock mounting holes:
Increased stability, recommended for high-traction tracks
The XB8E shock bodies feature composite lower shims for improved shock shaft movement. The shock caps feature 4 bleed holes for easier building and more precise rebound control. The longer shock shafts allow more suspension travel. 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.
The XB8E now includes the 4 Dot front springs.
The XB8E includes the 4-dot front shock springs for stability. 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 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.
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.
Socket Head Cup Screws.
To increase lifespan and improve ease of servicing, socket-head cup screws are used instead of regular hex screws. The socket-head cup screws are stronger and more reliable, making it easier to work on the car.
A full set of 22 high-speed ball-bearings are used throughout the XB8E drivetrain.
Grease lubricated bearings are included for the pinion gears and diffs to increase reliability and lifespan, especially in dusty conditions. The remaining bearings are degreased and oiled with AeroShell® Fluid 12 to reduce drag and maximize driveline efficiency.
The XB8 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.
Click here for more information of the full HUDY Grease range
The XB8E features fully-adjustable front and 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
- Roll center positions
- Bump steer
- Adjustable shocks
- Adjustable front and rear diffs
- Adjustable XRAY Multi-Flex™
The chassis design focuses on balanced weight distribution and weight transfer. Centerline holes are pre-drilled for easy balancing with the HUDY Chassis Balancing Tool #107880.
HUDY Set-Up Book.
The XB8E is one of the most adjustable off-road cars in the world. Whether you are a hardcore racing enthusiast or a club-level sportsman, you can very easily adjust the XB8E to suit your driving style, track type, and track conditions.
To fully comprehend the set-up possibilities of the XB8E, we highly recommend the HUDY Set-up Book which is loaded with over 50 pages of high-quality pictures and easy-to-understand RC car set-up explanations. The HUDY Set-up book will teach you many set-up tips & tricks to help improve your set-up skills, ultimately translating into improved racing performance with your XB8E. 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 full-color Instruction Manual contains large 3D illustrations that show all assembly details in the easiest and most comprehensive manner.
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.
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