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R/C Tech Forums Thread Wiki: Official Xray XB2 2WD Buggy Thread
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Last edit by: dgrobe2112
Instruction manuals: (C/O BentKa)

Xray XB2 Carpet Edition Instruction Manual
http://www.teamxray.com/xb2/2016/dow...ual_v2_low.pdf

Xray XB2 Dirt Edition Instruction Manual
http://www.teamxray.com/xb2/2016/dow...w.pdf?update=2

BentKa: Carpet Edition 4 gear to 3 gear laydown conversion parts:
  • Gearbox #323014
  • Motorplate #324012
  • 36T idler gear #324236
  • Brace for waterfall #324031


Socket: Bodies Available:

Xray has two OEM bodies, the .75mm and the .50mm light weight:
light weight: https://www.amainhobbies.com/xray-xb...329701/p492942

OEM .75mm: https://www.amainhobbies.com/xray-0....329700/p477762

Also, I've fitted the yz2 body, both the light and regular fit fine, just make your own cut lines:
https://www.amainhobbies.com/yokomo-...z2-101/p417674


[i] J Concepts S2 Body [i]


Penguin Racing makes a high grip body that fits the DE and CE:
http://www.ebay.com/itm/X-Ray-Xb2-Hi...oAAOSw1S9WewHV



Socket: Wheel fitment:

According to some, you'll require different offset rear hexes to use B5M wheels. According to my Hudy setup board, B5M wheels are the same offset. I measured the overall width of the car with XB2 wheels, and then again with B5M wheels, same measurement.

On the front, B5M wheels were 1.5mm wider. Xray offers hexes to reduce width -.75 on each side, or you could spend 3-5 minutes and sand your OEM hexes down .75mm.

edit by dgrobe2112
here are the hubs for losi and AE

for AE Front 365354 -0.75
for Losi rear 365358 +3.00 (4 stripe)
for AE rear 365359 +3.75 (5 stripe)



Socket: Flex and the XB2:

Flex screws are as follows:

Plastic bulkhead between motor and waterfall. Can remove screw in chassis, or remove bulkhead altogether.

Waterfall has 4 screws, can remove the inner two or outer two. IIRC, removing the inner two provides more flex, and thus more bite.

Removing the battery brace. This gives a tremendous amount of flex on the middle of the car, and can sometimes be inconsistent. I do this for outdoor racing on low bite. I like the feel over the 4 gear in 17.5 racing, since the 4 gear will take some snap away off the corner.

Rear C block - has inner and outer screws. I haven't played with this, as it's a crucial pivot point of the car.

Medium arms and towers -> I don't believe the carpet car has the rear medium tower available, however the DE DOES have an optional hard part. I think the hard parts are more consistent, especially when it gets hot (90+ degrees F). However, the medium parts do NOT break unless you're severely talented. They also don't wear out.



Socket: Avid/Schelle Slipper mod:

Credit to WillS, Matt Trimmings, and myself for figuring this out months ago.

Parts you'll need:

B5M V2 3gear compatible top shaft.
TKO Special 5x13x5 bear OR 5x13x6 bearing Either can work. This replaces the spur side bearing on the top shaft.
5mm shims, same shims used in 1/8th scale clutch bells. Look for protek .1mm and .2mm kit.
Avid or Schelle b5m top shaft kit, with spur gears of your choosing. (DE can't handle a 69, the CE can)

Shimming: You'll need to install the bearing in the front portion of the removable piece for the shaft. Make sure the bearing is pushed all the way in. With the TKO bearing, you'll need to shim approximately 1.4mm on the front side of the top shaft. Roughly .3-.5mm with the other bearing. This is a "feel" and tolerance setting. I urge you to watch videos about setting clutch bell play in 1/8th scale to get an idea of what yield you want for end play. Too tight, it'll eat bearings.

Outside of trans case: Use Avid/Schelle top shaft spacer plus .2mm shim to offset slipper from motor plate perfectly. Install slipper as instructed, and use Avid/Schelle spring and XB2 slipper nut.

- NEW - Schelle now sells Xb2 Topshafts. They include a spacer, so no need for shims in gearbox, and comes with the smaller bearing. Both methods work.

Socket: Yokomo Differential or MIP pucks:

Credit to: WillS for figuring out pucks, and as well fitting the Losi 22 diff with the same mods.

Parts needed: Yokomo Bmax2 or YZ2 complete diff OR Mip PUCKS outdrives
Xb2 diff gear
Bmax2 V3 Worlds rear dog bones, or Bmax 2 pucks dog bones
You'll use XB2 axles, and will require no other mods for the axles or dog bones.
You'll need .2mm outdrive/diff shims. Shim approximately .5mm on each side of the diff, behind the bearings. The top portion of the transmission is what "sets" the diff in place, not the bottom half. A little play back and forth is fine, the stock diff has some play from the factory.

dgrobe2112: CE to DE conversion:
along with the parts needed.. you MUST have these following hardware, or it wont work

https://www.teamxray.com/xb2/2016/do...conversion.pdf

(3) XRAY 902340 M3x40 button head screws. these are the screws that mount the motor mount to the tranny
(4) XRAY 903322 M3x22 counter sunk screws. these are for the rear diff case, to mount to the chassis. i think i used some M3x18 and they worked ok.

Socket: Best method for setting up the XB2 ball diff:

The XB2 diff is stellar when setup correctly. The spring is too short and soft, allowing the diff to slip. You'll need to glue the rings to the outdrives with just a drop of CA, then add a 1mm shim between the spring and the outdrive. This preloads the spring and stops the diff from slipping so easily.

OR, you can run the AE diff spring, which is both slightly longer, and stiffer. The overwhelming issue is the stock spring allows the nut to bottom out on the outdrive before the diff is tight enough.

This shim:
https://www.amainhobbies.com/xray-al...a303122/p12070

This diff spring (don't need a shim, then.)

https://www.teamassociated.com/parts...thrust_spring/

Functional Aftermarket parts: (Not just bling!)

Servo Horn: (The B5M sized horns are too short to get full throw)
https://www.amainhobbies.com/protek-...800-bk/p273496


Socket: Exotek has a full suite of parts, some bling, some not. Here's a list (all fit DE and CE, unless otherwise noted):

Titanium front axles: http://www.exotekracing.com/xb2-titanium-front-axles-2/

Rear Hanger, HD (Adds 4 grams): http://www.exotekracing.com/xb2-rear...75-heavy-duty/

Brass C block, 18 grams added: http://www.exotekracing.com/xb2-rear...-brass-weight/

Alloy front camber mount: http://www.exotekracing.com/xb2-fron...er-mount-7075/

Carbon Fiber Chassis: http://www.exotekracing.com/xb2-carb...m-plate-2-5mm/

Alloy rear hubs:http://www.exotekracing.com/xb2-allo...ub-set-2-7075/

Alloy servo mounts, allow for use of LP servo:http://www.exotekracing.com/xb2-xb4-...-alloy-1-pair/

Titanium shock mounts: http://www.exotekracing.com/xb2-xb4-...shock-posts-2/

Slipper Eliminator: http://www.exotekracing.com/xb2-direct-spur-mount/
Xray eliminator is #324100

dgrobe2112: 2016-2017 new 3 gear laydown
Gearbox #323014
Motor plate #324012
36T idler gear #324236
Brace for waterfall #324031

dgrobe2112: Xray Spring Rate Conversion:
front C WHT
368174 2 str 0.65-0.85 3.71-4.85

358184 2 dot 0.65 3.71
368185 3 dot 0.72 4.11
368186 4 dot 0.80 4.57


Rear
368273 2 str 0.35-0.45 2.00-2.57

368284 1 Dot 0.35 2.00
368285 2 Dot 0.40 2.28
368286 3 Dot 0.45 2.57
368287 4 Dot 0.50 2.86

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Old 01-12-2016, 09:28 AM   #991
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Quote:
Originally Posted by Wildcat1971 View Post
Does the Avid slipper fit the car?
no sir
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Old 01-12-2016, 02:04 PM   #992
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Quote:
Originally Posted by BentKa View Post
Using medium parts over hard does create more traction and usually also more steering. But at the same time it can also make the car a bit harder to drive if the traction is high as it will flex more.

Usually we tend to run the parts as stiff as we can while still having enough traction.

Running stiffer parts does make the car easier to drive and push hard.

As an example we are running hard lower front chassis and medium top at the moment. This combination makes it feel more predictable and precise while still having a good amount of steering. Running all medium does have more traction but feels less precise and consistent at the medium to high grip tracks we run at at the moment.

Don't be afraid to mix and match different parts…….we do it all the time.

Changing arms, uprights and link mounts is quick and easy.

And thank you

Bent
Thank you very much! Thatīs exactly what I wanted to know! At the upcoming weekend I have my first race with my XB2 and I hope I can annoy the Team C armada of the local club a little bit
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Old 01-12-2016, 02:32 PM   #993
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Originally Posted by RCHamburg View Post
Thank you very much! Thatīs exactly what I wanted to know! At the upcoming weekend I have my first race with my XB2 and I hope I can annoy the Team C armada of the local club a little bit
You're going to be the mongoose to their snake.
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Old 01-12-2016, 02:42 PM   #994
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Some people asked if different bodies from other cars fit the XB2, here I can show that the B5M body for example definitively does not fit and why it is not possible to put it on...
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
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Old 01-12-2016, 02:44 PM   #995
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Originally Posted by xrayracer1 View Post
You're going to be the mongoose to their snake.
Hehe... I hope so!
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Old 01-12-2016, 03:29 PM   #996
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Just gone home from the club track tonight. I'm pretty pleased with my setup.
It's basically the stock setup with:
-2° toe in rear
-maximum anti squat
-35wt front/25wt rear with stock 1.3x3 pistons
- +2mm inner camber link at the rear
- shortest front camber link
- full rear suspension
- shortest wheelbase for the rear and longest for the front (to shift weight to the back a bit).

The car work superbly well with new tires. Once the tires are at around 30% life thread things go bad quickly.
Our carpet is a medium/lowish grip but I feel that if I ever get something more slippery it's going to be a merry game to set it up with stock parts... hence my next question ...

Does someone know when the mid dirt edition gearbox will be available ?
Very eager to test it .

Edit: Yeah in fact what I need is quite a bunch of spares to move the motor to the mid rear. Will there be a conversion kit ?
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Last edited by shannow; 01-12-2016 at 04:11 PM.
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Old 01-12-2016, 07:44 PM   #997
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i am going to order one of these kits tomorrow. i want to make sure i order all the right parts. i dont know much about stuff, so sorry if this is stupid
it comes with an 81t spur, what motors run on that? is it like a 13.5? i dont see any gearing instructions in the manual for the spur to pinion charts. what is a decent gearing to run with what size motor?


tires for concrete. are these the correct tires for this truck?
http://www3.towerhobbies.com/cgi-bin...?&I=LXXCH5&P=7
http://www3.towerhobbies.com/cgi-bin...?&I=LXVDG2&P=7

thanks, again, sorry if these are stupid questions
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Old 01-13-2016, 01:08 AM   #998
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Quote:
Originally Posted by rekim View Post
i am going to order one of these kits tomorrow. i want to make sure i order all the right parts. i dont know much about stuff, so sorry if this is stupid
it comes with an 81t spur, what motors run on that? is it like a 13.5? i dont see any gearing instructions in the manual for the spur to pinion charts. what is a decent gearing to run with what size motor?


tires for concrete. are these the correct tires for this truck?
http://www3.towerhobbies.com/cgi-bin...?&I=LXXCH5&P=7
http://www3.towerhobbies.com/cgi-bin...?&I=LXVDG2&P=7

thanks, again, sorry if these are stupid questions
No experience running 13.5T but the tires you linked to will fit the stock wheels included in kit.

Bent
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Old 01-13-2016, 01:11 AM   #999
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Quote:
Originally Posted by RCHamburg View Post
Some people asked if different bodies from other cars fit the XB2, here I can show that the B5M body for example definitively does not fit and why it is not possible to put it on...
+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
Did a few tests myself yesterday as I didn't feel like painting with 100km/h winds and 2degC:Neither of B4.1 Finnisher (yes, still have one of these) and RB6 fit either.
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Old 01-13-2016, 01:40 AM   #1000
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My XB2 should be delivered by the weekend! I only got in one race with the PRS1V3 and that was enough for me to sell it (that and someone was looking for one!) Hopefully the XB2 will give me close to the amount of steering my Xb4/2 has. Does the XB2 share any parts with the XB4 buggies?
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Old 01-13-2016, 01:56 AM   #1001
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Quote:
Originally Posted by shannow View Post
Just gone home from the club track tonight. I'm pretty pleased with my setup.
It's basically the stock setup with:
-2° toe in rear
-maximum anti squat
-35wt front/25wt rear with stock 1.3x3 pistons
- +2mm inner camber link at the rear
- shortest front camber link
- full rear suspension
- shortest wheelbase for the rear and longest for the front (to shift weight to the back a bit).

The car work superbly well with new tires. Once the tires are at around 30% life thread things go bad quickly.
Our carpet is a medium/lowish grip but I feel that if I ever get something more slippery it's going to be a merry game to set it up with stock parts... hence my next question ...

Does someone know when the mid dirt edition gearbox will be available ?
Very eager to test it .

Edit: Yeah in fact what I need is quite a bunch of spares to move the motor to the mid rear. Will there be a conversion kit ?
Parts for the Dirt Edition will be released together with the Dirt Edition this month.

We have just uploaded the newest setup sheet from this weekends DHI Cup in Denmark which was run on medium grip carpet with Mini Pins.

Go to the Team Xray site and search for driver "Malin"

Bent
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Old 01-13-2016, 01:57 AM   #1002
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Quote:
Originally Posted by fivepointnine View Post
My XB2 should be delivered by the weekend! I only got in one race with the PRS1V3 and that was enough for me to sell it (that and someone was looking for one!) Hopefully the XB2 will give me close to the amount of steering my Xb4/2 has. Does the XB2 share any parts with the XB4 buggies?
A few drivetrain and shock parts.

Rest is new as it's a new platform.

Bent
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Old 01-13-2016, 04:30 AM   #1003
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Does it share springs and swaybars?

Assume driveshaft ends and outdrives etc are common?
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Old 01-13-2016, 04:45 AM   #1004
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Originally Posted by cplus View Post
Does it share springs and swaybars?

Assume driveshaft ends and outdrives etc are common?
Springs and sway bars are the same.

Turnbuckles, rod ends, ball studs, shocks, wing mounts, drive shaft parts etc.

Bent
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Old 01-13-2016, 10:40 AM   #1005
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I ordered one. My wife is going to be mad if she sees it. I'm hoping she won't since I have so many rc trucks that it will just be missed in the mix
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