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-   -   Xray XB2 2WD Buggy Thread (http://www.rctech.net/forum/electric-off-road/896275-xray-xb2-2wd-buggy-thread.html)

BentKa 10-16-2015 06:18 AM

Xray XB2 2WD Buggy Thread

Xray XB2 Carpet and Dirt Edition web page: https://teamxray.com/xb2c/2017/en/#17

Searchable Xray drivers setup sheets database:

2017 Carpet Edition All-new Features:
  • All-new motor position
  • All-new gear box
  • All-new gear box gears 36T
  • All-new motor plate
  • All-new rear suspension holder
  • All-new shock pistons
  • Increased steering
  • Increased traction
  • Improved high-speed stability
  • Improved reliability


Motor Position:

To increase traction, steering and high-speed stability, the motor position was changed from left to right position. This new position achieves a different motoric moment which improves handling in most typical track conditions.


Gear Box:

The lightweight, tiny gear box has a new internal design, accommodating a new 3-gear configuration as a result of the new right-side motor position.


Gear Box Gears:

With the all-new right side motor position and new gear box, the internal gears of the gear box are also new. The new large 36T gear – which fits the new 3-gear configuration – is moulded from premium graphite composite to ensure maximum life, high strength, and minimal weight.


Motor Plate:

The black-coated Swiss 7075 T6 aluminum motor plate has a new design to accommodate the new right-side motor position.
The 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 to the upper brace mount via a motor plate brace.



  • Brand new, ‘from ground up’ 2WD 1/10 electric racing buggy.
  • Uni-Platform™ concept: Carpet Edition and Dirt Edition.
  • Full compatibility and interchangeable parts.
  • Designed for highest performance at all levels of racing.
  • Engineered with attention to smallest details.
  • Manufactured with legendary artistic craftsmanship from premium European materials.
  • EFRA, ROAR, FEMCA spec compliant.
  • Super easy to build, set up, maintain, and drive.
  • Developed, designed, and styled by European Champion Martin Bayer and Dipl. Eng. Juraj Hudy, manufactured exclusively by XRAY in Europe in the world's most sophisticated RC manufacturing facility.
  • Setting the new benchmark for premium quality, reliability and performance.
  • Premium XRAY service & support.

Uni-Platform™ Concept:
  • Uni-Platform™ concept – two editions: Carpet Edition and Dirt Edition.
  • Single platform, two editions for different traction conditions.
  • Full compatibility and interchangeable parts.

Carpet Edition: designed for medium to very-high traction conditions:
  • Gear Differential.
  • Mid-Motor Gear Box.
  • Mid-Motor Plate.
  • Graphite Front & Rear Shock Towers.
  • Rear Roll Center Holder.
  • Motor Upper Brace.
  • Battery Strap.
  • Medium and Hard Composite parts.

Dirt Edition: designed for very-low, low, medium, and medium-high traction conditions:
  • Ball Differential.
  • Mid Gear Box for 3 gears.
  • Mid & Rear Motor Plate.
  • Composite Front & Rear Shock Towers.
  • Rear Roll Center Holder.
  • Motor Upper Brace.
  • Battery Strap.
  • Gear cover.
  • Medium Composite parts.

  • Optimal chassis weight distribution & balance, specific to Carpet Edition or Dirt Edition.
  • Carpet Edition – Gear Box and Motor Plate specifically designed to mount the motor in middle position with top shaft positioned lower.
  • Dirt Edition – Gear Box and Motor Plate specifically designed to mount the motor in either middle position or rear position, with top shaft positioned higher. Gear box can be built with either a 3- or 4-gear configuration, allowing adjustment of the motor orientation from left to right side in either mid or rear positions. Gear box for 4-gear configuration is optional.
  • Unique XRAY Multi-Flex™ technology for easy chassis flex adjustment.
  • Swiss 7075 T6 hardcoated 2.0mm aluminum chassis: lightweight, strong, rigid.
  • Electronics layout allows for moving the batteries frontwards/rearwards, as well as using standard or mid-size servos and either using saddle pack or short pack batteries.
  • Composite side guards are an integral part of the XB2 Multi-Flex™ system.
  • Custom-designed front lower chassis brace, available in medium and hard hardness for specific track conditions.
  • Front protection bumper.
  • Custom-designed upper deck, available in medium and hard hardness for specific track conditions.
  • Swiss 7075 T6 aluminum motor plate, specific to Carpet Edition (mid-motor) or Dirt Edition (mid- or rear-motor)
  • Battery strap with foam spacer, specific to Carpet Edition or Dirt Edition
  • Lightweight, strong shock towers with multiple shock mounting positions, specific to Carpet Edition (graphite) or Dirt Edition (composite)
  • Pre-drilled chassis holes for additional weights for optimum car balancing; centerline holes are pre-drilled for easy balancing with the HUDY Chassis Balancing Tool #107880

Drivetrain & Differentials:
  • Conventional gear-driven 2WD off-road car
  • Unique gear box, specific to Carpet Edition or Dirt Edition.
  • Carpet Edition – Gear Box and Motor Plate with lowered top shaft, forward-shifted motor for improved steering and handling on higher-traction surfaces.
  • Dirt Edition – Gear Box with raised top shaft, motor placement closer to differential for improved rear grip in lower-traction conditions, left or right side motor mounting.
  • Included rear differential is specific to Carpet Edition (gear differential with adjustable oil viscosity, 53T gear & internal satellite gears) or Dirt Edition (externally-adjustable ball differential with high-quality carbide thrust bearing and carbide balls).
  • 25T graphite composite idler gears.
  • 20T super-lightweight Swiss 7075 T6 hardcoated aluminum top shaft.
  • Robust slip-adjustable clutch with 81T main spur gear molded from exclusive secret blend of composite material.
  • 3-pad slipper clutch with ultra-efficient SLS material for more efficient & precise slip adjustment, and HUDY Spring Steel™ hardened outdrives for extra lifespan and reliability.
  • Constant velocity drives (CVD) are manufactured from special HUDY Spring Steel™ for reduced weight and increased durability.
  • Ultra-lightweight 12mm wheel hex drive hubs CNC-machined from Swiss 7075 T6 and additionally black-coated have ultra-true hex clamping design which ensures solid mounting of the wheel.
  • Full set of 24 high-speed, blue-sealed ball-bearings are used throughout the drivetrain to ensure maximum efficiency, degreased and oiled with AeroShell® Fluid 12 for maximum smoothness and long life.

  • Integrated Suspension Settings (I.S.S.) for quick & easy suspension geometry setting using eccentric bushings inserted into Swiss 7075 T6 aluminum suspension holders.
  • Specially-designed suspension components manufactured from carefully formulated custom composite mixtures to ensure proper flex and durability.
  • Race-perfected suspension geometry for superior performance and versatility in all racing conditions.
  • Suspension parts: arms, steering blocks, caster blocks and uprights are available in medium and hard hardness for specific track conditions.
  • Lower composite arm mount with integrated 26° kick-up angle; optional aluminum and brass arm mounts available.
  • Lightweight, rigid caster blocks can achieve different overall caster angles using included caster bushings.
  • Tiny yet tough steering blocks comprised of composite steering blocks + graphite Ackermann extensions.
  • Adjustable weight balance & wheelbase via included shims on outer suspension pins.
  • Compact rear uprights with 0° toe and 6 different upper roll center positions
  • HUDY Spring Steel™ material for turnbuckles (featuring a tougher core) is used for front & rear upright linkages, and steering system.
  • Optionally available rear anti-roll bar set to stabilize the rear of the car; easily adjusted via linkages; laser-engraved markings for easy identification, available in different sizes for fine-tuning.

  • Simple yet effective dual-arm steering system.
  • Fully bearing-equipped with 8 high-speed ball-bearings for very precise steering.
  • Easily-adjustable Ackermann by quickly changing the steering link mounting positions on the steering plate.
  • Bump steer adjustment for more aggression.
  • Ackermann adjustment via included shims or using various graphite extension plates on steering blocks.

  • Consistent, reliable, membrane-free shocks with bleed-screw shock cap design feature up-stop & downstop adjustment via shims (under shock collar, and under pistons, respectively).
  • Swiss 7075 T6 aluminum shock bodies, lower nut & bleeder shock caps.
  • Super-precise molded Delrin™ pistons are offered with different holes & diameters for precise shock adjustment; for custom adjustment, a set of blank pistons (no holes) are also included.
  • Shock rods are machined from a special steel material, precision hand-ground for maximum smooth operation and additionally hardened for increased lifespan.
  • Premium shock springs designed specifically to complement the XB2 shocks; manually measured, selected and matched into pairs to guarantee equal length and damping characteristics; laser engraved for easy identification.
  • Full line of linear -or- progressive shock springs available.
  • Premium silicone oils laboratory tested and calibrated to ensure highest possible consistency and quality.

Body, Wings, Wheels:
  • High-downforce, low-profile aerodynamic Lexan™ body designed to perfectly fit the XB2, flat cockpit & body sides to direct airflow for improved side stability, and rooftop flow channels.
  • Tough composite side guards feature double-sided Velcro™ tape to seal the body perfectly to the chassis and seal against dirt.
  • Optional available ultra-lightweight body for very-high-traction tracks conditions.
  • Stylish, effective Lexan™ rear wing designed to work perfectly with the XRAY XB2 body, supported on wing mounts by extra flat shims to better support and extend the life of the wing. Optionally available thicker 1.5mm (#323511) rear wing for higher traction & stability.
  • Lexan™ front wing generates front downforce, mounted directly on the front shock tower.
  • Specially designed 12mm hex hub wheels for high-competition racing; featuring reinforcement ribs to eliminate deformation and molded from very flexible material to retain shape even after impacts.

Assembly, Set-up & Support:
  • Premium 3D full-color Instruction Manual & supplementary sheets.
  • To fully understand the set-up possibilities we recommend the legendary HUDY Set-up Book which is loaded with over 40 pages of high-quality pictures and easy-to-read RC car set-up explanations.
  • Exclusive Virtual Online Setup Sheet database with thousands of set-up sheets for race tracks around the world.
  • Premium, unmatched XRAY online support.

Adjustment Possibilities:
  • Fully-adjustable front and rear suspension geometry: caster, camber, rear toe, kick-up, anti-squat, ride height, downstops, track-width, roll center, wheelbase, Multi-Flex™.
  • Adjustable rear differential action.
  • Adjustable slipper clutch.
  • Adjustable HUDY Sprint Steel™ turnbuckles (steering, front & rear upper links).
  • Multiple upper & lower shock mounting locations at front & rear.
  • Adjustable Ackermann and bump steer.
  • Optional adjustable rear anti-roll bar.
  • Chassis pre-drilled holes for weight balance adjustment.

  • Class: 1/10 electric 2WD off-road car
  • Width: Adjustable 245-250mm
  • Length: 274mm (394 with wing)
  • Wheelbase: Adjustable 282-285mm
  • Ready-to-run weight: 1520g

  • Chassis: CNC-machined Swiss 7075 T6 aluminum 2mm
  • Front upper deck: Composite (Medium & Hard)

  • Suspension: Adjustable suspension via Integrated Suspension System I.S.S.
  • Rear suspension: Lower arm with adjustable upper camber link
  • Front suspension: Lower arm with adjustable upper camber link and with adjustable caster 0°, 2.5° and 5°
  • Rear upright: Composite 0° toe-in with dual arm mounting and 7 roll center positions
  • Shocks: Membrane free shock absorbers with Delrin pistons
  • Shock towers: Front & rear machined 4.0mm & 3.5 mm laminated carbon graphite (Carpet Edition) or composite (Dirt Edition) with multiple shock mounting

  • Type: 2WD
  • Primary: Pinion / spur
  • Drive shafts: HUDY Spring Steel™ CVD drive shafts
  • Differential: Sealed gear differential, 6 gear, silicone-filled
  • Slipper clutch: Adjustable 3-Pad
  • Bearings: Rubber-sealed high-speed bearings

  • Primary ratio: 1:2.65
  • Gear Box gear: 25T
  • Differential pulley: 53T
  • Spur gear: 81T (75T, 78T & 84T option)
  • Motor pinion: Not included

  • Camber: Adjustable front + rear
  • Front Caster: 26° static + caster in caster block = 26°, 28.5°, 31° total caster range
  • Toe-in: Adjustable front + rear
  • Downstops: Adjustable front + rear
  • Front kick-up: Adjustable 26°~31°
  • Rear anti-squat: Adjustable 0°~4°
  • Anti-roll bars: 1.0mm, 1.1mm, 1.2mm rear (option only)
  • Ackermann: Adjustable
  • Ackermann: Adjustable
  • Bump steer: Adjustable
  • Steering: Centrally-positioned dual steering system

Body, Tires, Wheels & Misc:
  • Body: XRAY XB2 body
  • Tires: Not included
  • Wheels: XRAY Aerodisk 12mm Wheel hex hub.

Adjustment Possibilities:
  • Standard adjustment: Camber, toe-in, caster, track width, wheelbase, kick-up, anti-squat, roll center, Ackermann, bump steer.
  • Instructions: Full-color manual with 3D graphics (40 pages).
  • Set-up book: Not included. HUDY 2-color off-road set-up book (40 pages) can be downloaded in the „Download section“ and it shows 1/8 off-road models in photographs contained within it. However, the methodology and set-up theory are the same for all modern 1/10 off-road cars.
  • Packaging: Carton box with vinyl bags with parts.
  • Additionally included: HUDY Graphite Grease, Silicone Oils, Authentication Certificate, Parts list & Exploded view, Decals.

Items Not Included:
Radio system (transmitter and receiver), steering servo, motor, pinion gear, LiPo battery packs, speed controller, charger, tires, inserts, double-sided tape, CA glue, bearing oil, medium-grade (blue) thread lock, universal tool for all nuts and turnbuckles and other tools

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.


BentKa 10-16-2015 06:18 AM


To prevent the steering linkage from disconnecting in a crash you may use the optional universal ball with backstop. Follow the instructions below.


XB2 Slipper Eliminator - Set #324100

XRAY XB2 Slipper Eliminator is a direct replacement for the slipper clutch set. Designed and recommended for use with stock motors to reduce rotating mass, reduce weight, and improve power transfer from motor without any power loss. With the Slipper Eliminator, motor performance is transferred directly to the car, and there is also no need for clutch & slipper adjustment. Exchanging the spur gear is then extremely very quick & easy.

Set includes aluminum slipper shaft, aluminum spur gear hub, and 69T spur gear (an optional 72T spur gear is available).

• Reduces rotating mass
• Improves power transfer
• Eliminates power loss
• Direct motor performance transfer
• Eliminates need for clutch & slipper adjustment
• Easy spur gear exchange
• Recommended for stock motors



XRAY Composite Shock Ball Joint 21mm (2)

Molded composite shock ball joint, length 21mm. These ball joints are +4mm longer than standard ball joints, allowing greater suspension downtravel. Fits front & rear shock absorbers. Fits XB4 and XB2. Set of 2.

• Longer ball joint
• Greater suspension downtravel
• For front & rear shocks
• 2 pcs in set

#328011 Composite Shock Ball Joint 21mm (2)



XRAY XB2 Alu Steering Plate

Alu steering plate CNC-machined from premium Swiss 7075 T6 aluminum. Easily-adjusted Ackermann via steering link mounting positions on the steering plate. The alu steering plate generates more steering, more precise steering, and more aggressive steering.

• Increases Steering
• More precise steering
• More aggressive steering
• Increases stregth

#322570 Alu Steering Plate - Swiss 7075 T6


XB2 Composite Chassis Side Guards L+R

• Chassis flex adjustment
• Various hardness available
• For different track conditions

Side guards are an integral part of the XB2 Multi-Flex™ system. Molded from premium composite material, the side guards allow for proper chassis flex. Various hardness available for different track conditions.

#321260-H Composite Chassis Side Guards L+R - Hard
#321260-M Composite Chassis Side Guards L+R - Medium




Molded composite rear roll-center holders for DIRT EDITION made from premium composite material in various hardness for different track conditions.

Medium: suitable for very-low to low-medium traction tracks
Hard: suitable for low-medium to medium-high traction tracks

• Traction adjustment
• For different track conditions
• Various hardness available

Fits: XB2 Dirt Edition.

#323042-H Composite Rear Roll-Center Holder - Dirt Edition - Hard
#323042-M Composite Rear Roll-Center Holder - Dirt Edition - Medium



Optional molded composite motor gear box made from premium composite material accommodates 4 gears and orientates the motor on the LEFT side. All parts fit perfectly together, and give super-easy access to the rear differential. The durable gear box houses the differential and rear transmission, allowing the mounting of the rear roll center holder, motor plate, and rear shock tower.

#323012 Composite Mid Motor Gear Box (4 Gears) Set

• Accommodates 4 gears
• Motor orientation on LEFT side
• Super-easy access to rear diff
• Ultra durable

Fit: XB2 Dirt Edition.




The Xray XB2 comes with 12mm wheel hexes for use with the new softer Xray 12mm hex wheels (1 set included in kit).

The new 12mm hex wheels offer more traction and better bump absorption.

Here are some measurements of both stock included hexes and the optional hexes:

#365354 -0.75mm (2pcs) = 3.8mm
#365353 0mm (2pcs) = 4.6mm (XB2 stock front)(same width as standard 14mm wheel hexes)
#365355 +0.75mm (1 stripe)(2pcs) = 5.3mm
#365356 +1.5mm (2 stripe)(2pcs) = 6.1mm
#365357 +2.25mm (3 stripe)(2pcs) = 6.8mm (XB2 stock rear)
#365358 +3.00mm (4 stripe)(2pcs) = 7.6mm
#365359 +3.75mm (5 stripe)(2pcs) = 8.4mm

The small inner flange that goes towards the bearing are not included in the measurements .
This flange adds 0.3mm on all the above numbers.


Battery straps made from special composite material. For use with Dirt Edition. Different hardness available for various track conditions.

Standard (Medium): Recommended for very-low to low-medium traction tracks
Option (Hard): Recommended for low-medium to medium-high traction tracks

#326112-M Composite Battery Strap - Medium - Dirt Edition
#326112-H Composite Battery Strap - Hard - Dirt Edition

• Special composite mixture
• Different hardness available
• Flex adjustment
Fits dirt edition only






Front roll center bushings:


Wing position:



New Composite 3-Pad Slipper Clutch Spur Gears

• Exclusive secret blend of composite material
• Precision-molded
• Extra-strong
• Lightweight
• Stamped for easy identification

Precision-molded spur gears for 3-Pad Slipper Clutch, made from XRAY's exclusive secret blend of composite material, allowing the gear to run yet be robust enough to handle high performance brushless motors.
The spur gear is designed to have the lowest possible weight while staying strong and light.
Each gear is stamped with the tooth number for easy identification.

Fit: XB4'15, XB4'16 and XB2.



BentKa 10-16-2015 06:19 AM


seth556 10-16-2015 07:55 AM

Woo, finally, only 12 years in development later! Should be good.

BentKa 10-16-2015 08:10 AM


Martin Bayer takes you behind the scenes of the Xray XB2 project in a NeoBuggy exclusive story. Coming soon…


First part of the story behind making the all new XRAY XB2 2WD 1/10 electric buggy is now available to read at:

A few pictures from the article courtesy of Neobuggy.net:










More pictures from part 2 of the story behind the making of the all new Xray XB2 2WD buggy which you can read on Neobuggy.net here:

Making the Xray XB2 part 2













The fixture for the XB2 motor mount is ready for mass production.


XRAY XB2 is coming - XB2 chassis in production.


XRAY XB2 is coming - XB2 aluminum shock bodies in production.


XRAY XB2 is coming - the XB2 suspension holders in production at the CNC milling machine.


XRAY XB2 is coming - the XB2 chassis production full running.


XRAY XB2 is coming - some semi-finished XB2 chassis.


Production of Xray XB2 top-shafts.


Injection moulds for production of the XB2 2WD composite parts.



A small amount of electrodes requiring for a small part of a mould production.

Electrodes for C-hub of the XB2. All set and ready for mould production.

XB2 composite parts drying out.

Stock full of XB2 parts ready for packaging.



Final pre-production rapid prototype of the gear box cover installed on the motor holder. All fits nicely.

The gear box mould for XB2 Dirt in production.


Brass electrodes for the XB2 Dirt gear box. The black ones are already used.

rraden 10-16-2015 09:32 AM

So, is this car design focusing on high bite, carpet surfaces?

EricW 10-16-2015 09:54 AM


Originally Posted by rraden (Post 14226099)
So, is this car design focusing on high bite, carpet surfaces?

I'd like to hear the answer to this as well.

Socket 10-16-2015 10:21 AM

How'd this car do at worlds? How'd it do at the ROAR nationals?

seth556 10-16-2015 10:26 AM


Originally Posted by rraden (Post 14226099)
So, is this car design focusing on high bite, carpet surfaces?

I think you're referring to the RedRC snippet where they talked about the XB4 2wd, which was essentially only good for high bite carpet.

I don't know all the details of the XB2 but it should be good on any surface, I know they ran it at the Euros a month ago which was on dirt.

BentKa 10-16-2015 10:27 AM


Originally Posted by Socket (Post 14226166)
How'd this car do at worlds? How'd it do at the ROAR nationals?

7th at the Worlds in the hands of Martin Bayer.

Not competed at the ROAR nationals.


Socket 10-16-2015 10:30 AM


Originally Posted by BentKa (Post 14226177)
7th at the Worlds in the hands of Martin Bayer.

Not competed at the ROAR nationals.


No USA drivers? I'll pass then. Cool car!

suby723 10-16-2015 12:07 PM


Originally Posted by Socket (Post 14226183)
No USA drivers? I'll pass then. Cool car!

Tyler Vik would be the us driver.

BentKa 10-22-2015 10:53 AM


XRAY XB2 is coming - XB2 chassis in production.


thecman26 10-22-2015 10:22 PM

Anybody gonna speculate as far as availability dates?

Tobiasmart 10-23-2015 01:51 AM

Mb models states mid November. They are usually right.


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