Chassis
- All-new chassis design with redesigned & improved weight balance, stability, and steering; shorter, wider rear, narrower front
- CNC-machined chassis made from 3mm high-quality Swiss 7075 T6 aluminum
- Strategic machining for ultra-light weight and uncompromised strength & rigidity
- XRAY Multi-Flex Technology™
- Engine parallel with chassis centerline, center diff positioning for straight-line central drive shafts
- Countersunk screw holes on chassis bottom for smooth underside
- Pre-drilled holes for additional balancing weights
- Pre-drilled centerline holes for use with HUDY Chassis Balancing Tool
- 1-piece electronics assembly is compact and easy to remove
- All-new side guards for better stability and improved traction
- All-new redesigned chassis braces for increased flex, better traction, and elimination of vibration from suspension
- All-new redesigned large, easy-access, molded radio box
- All-new updated & reinforced diff bulkheads
- All-new upper deck accommodates all new design updates including front brace attachment, connection to new bulkheads and front suspension.
- New connecting link between throttle servo and radio box, for elimination of vibrations to chassis and more precise throttle & brake control.
- Premium Swiss 7075 T6 shock towers
Engine & Clutch
- Redesigned engine mounting positions for improved chassis flex
- High-grade, CNC-machined extended aluminum engine mounts for higher reinforcement of the chassis in the longitudinal direction, minimize chassis bending after jumps
- High-torque clutch for smooth and continuous power transfer at high RPM
- Swiss 7075 T6 aluminum flywheel has a small diameter, increased weight for smoother and more balanced engine operation
- Small, lightweight Swiss 7075 T6 clutch shoes for improved wear and increased lifespan
- Extra-tough Hudy Spring Steel™ flywheel nut
- Smooth-flowing, efficient 2-part air filter
- Extra-strong fuel tank made from special composite mixture features an integrated floating stone filter and internal baffles to ensure constant fuel supply
- Fuel tank mounting with rubber grommets to absorb vibration
Brakes
- Well-proven, high-performance braking system for strong, precise and dependable braking performance.
- Laser-cut, precision flat-ground steel brake disk is hand-ground for true, wobble-free rotation
- Special high-grip brake pads installed on laser-cut brake plates
- Rigid, high-precision machined brake cams
Drivetrain
- Conventional shaft-driven 4WD off-road drivetrain
- Front & rear gear differential with adjustable oil viscosity featuring 46T crown gears and 14T pinion gears
- Central differential with adjustable oil viscosity featuring 46T spur gear with standard 13T engine clutchbell
- All-new front & rear universal drive shafts generate more traction, offer less resistance in front at maximum steering angle.
- Newly-sized front & rear central CVD drive shafts accommodate new weight balance distribution
- All drive shafts manufactured from HUDY Spring Steel™
- Central larger & stronger outdrives feature protective rubber boots, thick 3mm pins, and a protective locking ring
- Ultra-lightweight 17mm wheel hex drive hubs CNC-machined from Swiss 7075 T6 black-coated aluminum
- Full set of 24 high-speed, greased, blue-sealed ball-bearings ensure maximum efficiency
Differentials
- High-precision gear differentials
- Rubber-sealed composite differential housings with steel inserts
- Differential internal gears made from pressed steel, heat treated, and machined for ultra‑high precision and smooth operation
- Super-lightweight diff outdrives machined from HUDY Spring Steel™
- Easy access to center differential
- Center diff housing is sized to accommodate optional spur gears
- Differential main gears manufactured from HUDY Gear Steel
Suspension
- All-new redesigned pivot ball suspension concept for 2016 to prevent binding in dusty conditions, while ensuring stable ride height in all traction conditions.
- Ultra-robust pivot ball suspension with integrated suspension geometry adjustment; different kingpin plates being the only optionally-available tuning parts
- Integrated Suspension Settings™ (I.S.S.) for quick & easy suspension geometry setting
- Suspension arms with optimal length, thickness, flexibility, geometry of suspension points, and material characteristics.
- Suspension arms are the result of extensive design knowledge and exhaustive testing
- Exclusive composite mixtures developed in-house by XRAY offer the perfect balance between reliability and performance, rigid enough to provide a responsive feel yet soft enough to survive extra-long main events and impact
- All-new redesigned extra-strong & robust front upper arms accommodate new pivot ball suspension.
- All-new front upper pivot balls are combined with steel threaded part for maximum strength; aluminum ball is machined from premium Swiss 7075 T6 and additionally hardcoated for extended lifespan
- All-new redesigned 2-pivot ball, super-lightweight composite steering blocks with universal design to work on either left & right side
- Updated rear lower arm features newly-added extra inner shock positions for super-smooth track surfaces, and pre-drilled holes to install lightweight mud guards (included).
- All-new redesigned 1-piece lightweight composite rear upright block with new geometry for improved traction and bump absorption
- Shortened rear turnbuckles with lengthened pivot balls for improved side landings
- Turnbuckles made from special blend of HUDY Spring Steel™ specifically formulated for turnbuckles
- Front & rear anti-roll bars manufactured from spring steel material
- Redesigned Ackermann for improved steering characteristics, better predictability into & out of corners.
Steering
- Redesigned, updated dual-arm steering system accommodates new weight balance and repositioned Ackermann
- Integrated, easily adjustable servo saver
- Swiss 7075 T6 aluminum steering plate
- Quick & easy Ackermann and bump steer adjustment
- HUDY Spring Steel™ turnbuckles
Shocks
- Big-bore, long-stroke shocks for ultimate reliability and performance
- Shock bodies are externally hardcoated
- Shock body external threading for quick & easy spring preload adjustment
- New longer rear shock body for improved efficiency in rough, bumpy conditions
- Robust 3.5mm super-smooth polished shock shafts
- Longer shock shafts & shock collar for increased downtravel
- Ultra-fine shock protective rubbers for superior sealing against dirt
- Ultra-precise big-bore 6-, 8- and 10-hole shock pistons made from Delrin™ material for smooth operation and durability
- Specially-formulated rubber shock membrane ensures equal damping
- Lower shock assembly features multiple high-quality silicone O-rings for smooth, free, leak-free operation
- All-new front & rear shock springs feature a mix of progressive & linear rates; the new springs are slightly progressive, but under larger compression they change characteristics to become more linear to give excellent feeling & feedback in all different track conditions.
- Specially-designed shock springs have been specifically designed to complement the big-bore shocks
- Shock springs are manually measured, selected and matched into pairs to guarantee precisely equal length and damping characteristics
- HUDY Premium Silicone Oils are manufactured in Europe by a specialized premium silicone oil manufacturer. Each batch of premium oil is laboratory tested and calibrated to ensure the highest possible consistency and quality batch-to-batch. Based on the industry-standard cSt rating, the new line of oils will be easy to identify, adjust, and feel.
Body & Wing
- All-new redesigned body with improved aerodynamics, increased downforce, increased side stability, improved landing, and significantly increased rear downforce
- High-quality Lexan™ body perfectly fits the car and works in most track conditions
- All-new redesigned composite side guards protect the car, muffler, and fuel tank from side hits. The side guards perfectly fit the chassis and seal against dirt. Ribs on the left side guard protect the fuel tank from muffler heat.
- Stylish, effective, and strong rear wing is made from strong special composite mixture, designed to survive severe abusive and extreme crashes while keeping its shape
- Rear wing holders made from special composite mixture to withstand abuse and crashes, and feature several different wing mounting positions
- Optional (included) mud guards may be easily installed on the rear suspension arms to protect the rear drivetrain in wet and dirty track conditions
Assembly & Support
- Premium 3D full-color Instruction Manual & supplementary sheet
- Exclusive Virtual Online Setup Sheet database with thousands of setup sheets for race tracks around the world
- Premium, unmatched XRAY online support
Adjustment Possibilities:
The XB8 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:- Caster
- Camber
- Toe
- Kick-up
- Anti-dive
- Anti-squat
- Ride height
- Downstops
- Track-width
- Lower roll center
- Upper roll center
- Roll center positions
- Bump steer
- Wheelbase
- Ackermann
- Adjustable shocks
- Adjustable front and rear diffs
- Adjustable XRAY Multi-Flex™
All specifications are subject to change without prior notice. Pre-production prototype is shown, final specifications may slightly vary. In some pictures optional parts may be shown. All option parts are not included and must be purchased separately. The color of some aluminum parts may vary from kit to kit and some of the kits may not include all the orange or black parts as shown. Some of the spare parts or option parts may not be available at the moment in the orange or black color as shown. Some of the pictures show colored stickers on wing and radio tray, these are not included in the kit and are used in photos only for promotional purposes. The racing body included in the box is clear and unpainted.
| Dimensions | |
| Length: | 500mm |
| Chassis length: | 399.5mm |
| Wheelbase: | 322~328mm |
| Width: | 310mm |
| Weight: | 1868g |
| Approximate running weight: | 3205g |
| Chassis | |
| Chassis: | 3 mm CNC-machined Swiss 7075 T6 hardcoated aluminum |
| Radio tray: | Composite 1-piece |
| Central diff upper deck: | Composite |
| Braces: | Composite braces (front / rear) |
| Suspension | |
| Suspension: | Pivot ball fully adjustable suspension |
| Rear suspension: | Lower H-arm with adjustable upper camber link |
| Front suspension: | Lower H-arm with adjustable upper camber link A-arm |
| Rear upright: | Composite with dual arm mounting and 2 lower roll center positions and upper aluminum plate with 3 upper roll center positions |
| Shocks: | Big-bore shocks with various shock pistons featuring Delrin pistons |
| Shock towers: | Front & rear 4.0mm alu |
| Drivetrain | |
| Type: | Full-time shaft-drive 4WD with center differential |
| Primary: | Steel spur gear / clutchbell |
| Drive shafts: | HUDY Spring Steel™ universal drive shafts |
| Central shafts: | HUDY Spring Steel™ CVD drive shafts |
| Differentials: | Sealed, 6 gear, silicone-filled |
| Clutch: | Aluminum 3-shoe |
| Bearings: | Rubber-sealed |
| Gearing | |
| Pinion: | 14T front / rear |
| Crown gear: | 46T front / rear |
| Clutchbell: | 13T |
| Spur gear: | 46T |
| Body, Tires, Wheels & Misc | |
| Body: | XRAY XB8’16 body |
| Tires: | Not included |
| Wheels: | Not included, standard 17mm hub |
| Fuel tank: | 123cc capacity with capacity-adjustment segments, with hypertonic tank lid and internal stone-type floating filter |
| Adjustment Possibilities | |
| Standard Adjustment: | Camber, caster, toe-in, wheelbase, kick-up, anti-squat, lower & upper roll centers, kingpin, Ackermann, bump steer, Multi-Flex, weight balance |
| Items Not Included | |
| Engine, Exhaust system, Electronics (Radio, Receiver, Servos, Batteries), Wheels, Tires, Tools, Wheel tool, Receiver battery, Fuel, Switch, Start box, Glow heater, Paint, Charger, Universal tool for all nuts and turnbuckles, Set-up book. | |