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Art.Nr.: XRAY X350012

Hersteller Info: Team Xray

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XB8`17 Nitro Baukasten Kit

All-new 2017

Large volume front, central, and rear differentials for improved long run performance and reduced internal heat build up
Stronger 2.5mm diff pins in all differential outdrives
Longer front, central and rear internal cross diff pins
Improved internal diff gears with re-profiled teeth for reduced friction and smooth operation
All-new lightweight machined diff outdrives
All-new profile 46T lightweight Hudy Steel central diff gear
All-new larger rubber-sealed center differential housing
New differential gaskets
Front trailing steering blocks give increased forward traction and better handling
Improved geometry steering block Ackermann plates
New graphite material servo saver for increased reliability and smooth operation
Composite front upper top deck for added flex & increased steering
Improved alu steering posts to accommodate new front upper plate
Redesigned steering pivot balls to eliminate wheel locking
Redesigned brake cam
Narrow profile front suspension arms move the front wheels forward for improved take-off and landing on jumps
Longer rear suspension arms for better handling, stability and increased traction
Short alu rear suspension holders for new geometry
Improved weight distribution and balance for increased traction
All-new chassis flex adjustments using optional graphite stiffeners on the chassis guards
Hard alu clutch shoes for smoother engagement

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
Side guards for better stability and improved traction
Chassis braces for increased flex, better traction, and elimination of vibration from suspension
Large, easy-access, molded radio box
Super strong diff bulkheads
Composite upper deck with optimized flex which results in increased traction and improved steering characteristics.
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
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
Hard Swiss 7075 T6 aluminum clutch shoes allow for smoother engagement
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

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 cam posts

Conventional shaft-driven 4WD off-road drivetrain
Large volume front & rear gear differential with adjustable oil viscosity featuring 46T crown gears and 14T pinion gears
Large volume central differential with adjustable oil viscosity featuring large 46T spur gear with standard 13T engine clutchbell
Front & rear universal drive shafts generate more traction, offer less resistance in front at maximum steering angle.
Front & rear central CVD drive shafts
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

Large volume high precision front, central, and rear gear differentials Rubber-sealed composite differential housings with reinforced internal diff gears with more teeth and improved tooth profiles
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

Longer rear arms make the car easier to drive in most track conditions
Redesigned pivot ball suspension concept 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
Extra-strong & robust front upper arms accommodate pivot ball suspension.
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
2-pivot ball, super-lightweight composite steering blocks
Trailing-axle steering blocks offer a significant handling improvement in all track conditions, making the car easier to drive and giving increased forward traction
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

Servo saver moulded from graphite material which is more resistant and efficient in dusty conditions
Redesigned steering pivot balls to eliminate wheel lock
Dual-arm steering system with adjustable Ackermann
Integrated, easily adjustable servo saver
Swiss 7075 T6 aluminum steering plate
Quick & easy Ackermann and bump steer adjustment
HUDY Spring Steel™ turnbuckles

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
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
Front & rear shock springs feature a mix of progressive & linear rates; the 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 oils will be easy to identify, adjust, and feel.

Body & Wing
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
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

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:
Ride height
Lower roll center
Upper roll center
Roll center positions
Bump steer
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.


Length: 500mm

Chassis length: 399.5mm

Wheelbase: 322~328mm

Width: 310mm

Weight: 1868g

Approximate running weight: 3205g


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)


uspension: 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


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.

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