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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 02-03-2016, 07:16 AM   #1261
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Quote:
Originally Posted by Patsfan12 View Post
Ok so I love my xb2 but........ The "option parts" I.e. Ecs drives, alum rear carrier CF battery brace and even the wheels as well as other stuff that I would like to add are NEVER in stock!! When can we expect these to return to stock???
I've asked this question before. For some reason this topic seems to get people around here aroused

Nevertheless I've been patiently waiting and have resorted to ordering part from Austria. Only place I can find the parts I need immediately. Had to pay 21 Euros just for the shipping. That's how desperate I was.

From what I have been told, the demand is very high right now because this brand has exploded and with reason. X-ray is doing great things in the industry. That's a good thing I suppose.
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Old 02-03-2016, 09:47 AM   #1262
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Originally Posted by BentKa View Post
Facebook update from Juraj Hudy:



Bent
In the picture it doesn't look (to my eye) like there is the ability to quickly change out the diff like in the CE. Is that accurate?
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Old 02-03-2016, 09:49 AM   #1263
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Originally Posted by goehm View Post
In the picture it doesn't look (to my eye) like there is the ability to quickly change out the diff like in the CE. Is that accurate?
It will be similar to how the carpet edition is setup. It will be very easy to swap the diff out.
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Old 02-03-2016, 09:57 AM   #1264
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Originally Posted by Vincent_Diesel View Post
I've asked this question before. For some reason this topic seems to get people around here aroused

Nevertheless I've been patiently waiting and have resorted to ordering part from Austria. Only place I can find the parts I need immediately. Had to pay 21 Euros just for the shipping. That's how desperate I was.

From what I have been told, the demand is very high right now because this brand has exploded and with reason. X-ray is doing great things in the industry. That's a good thing I suppose.
That's great that it ruffled feathers and I understand parts availability . I could have sold 3-5 other C.E. Cars to some of my racers but they went to yokomo because of the parts availability. Idk . Guess just have to patiently wait and wait.
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Old 02-03-2016, 10:28 AM   #1265
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Originally Posted by goehm View Post
In the picture it doesn't look (to my eye) like there is the ability to quickly change out the diff like in the CE. Is that accurate?
Diff access is just as easy as on the Carpet Edition



Bent
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Old 02-03-2016, 12:33 PM   #1266
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Originally Posted by BentKa View Post
Diff access is just as easy as on the Carpet Edition



Bent
Ok, I see it now. Thanks Bent. I didn't realize the whole top came off!
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Old 02-03-2016, 12:38 PM   #1267
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Originally Posted by Patsfan12 View Post
That's great that it ruffled feathers and I understand parts availability . I could have sold 3-5 other C.E. Cars to some of my racers but they went to yokomo because of the parts availability. Idk . Guess just have to patiently wait and wait.
That's funny to me ... I have a yokomo and its amain or nothing and they don't have the stuff you need when you need it either.
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Old 02-03-2016, 02:33 PM   #1268
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Quote:
Originally Posted by BentKa View Post
Diff access is just as easy as on the Carpet Edition



Bent
This is such a solid design... schumacher does this as well. When a diff is easier to get to, it becomes so much easier to get in and do a rebuild, if nothing more than a cleaning and a re-grease/lube. This is a big advantage for the mere mortals that have limited time to work on their cars due to work/family/etc.

I think often times at the track, i see diffs neglected due to the amount of work it takes to get them out of the car, and a lot of guys don't realize how much better a car drives with a smoothly operating diff. Makes a big difference.

Solid choice of engineering, Xray
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Old 02-03-2016, 03:06 PM   #1269
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Originally Posted by Cpt.America View Post
This is such a solid design... schumacher does this as well. When a diff is easier to get to, it becomes so much easier to get in and do a rebuild, if nothing more than a cleaning and a re-grease/lube. This is a big advantage for the mere mortals that have limited time to work on their cars due to work/family/etc.

I think often times at the track, i see diffs neglected due to the amount of work it takes to get them out of the car, and a lot of guys don't realize how much better a car drives with a smoothly operating diff. Makes a big difference.

Solid choice of engineering, Xray
It takes me about 10minutes tops to remove,change fluid and reinstall the gear diff. The yz2 took me a good 30minutes and a mild headache included haha
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Old 02-03-2016, 03:09 PM   #1270
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i thought i read online there was a way to make the dirt edition rear motor. was that for the xb2? i read so much on so many different trucks on so many different sites in the last couple of weeks i might be confusing it with another truck?

If it is possible, will it be possible to use it on the carpet edition as well?
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Old 02-03-2016, 03:16 PM   #1271
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i thought i read online there was a way to make the dirt edition rear motor. was that for the xb2? i read so much on so many different trucks on so many different sites in the last couple of weeks i might be confusing it with another truck?

If it is possible, will it be possible to use it on the carpet edition as well?
The same chassis can switch from lcg mm, mm 3 gear and 4 gear and also rear motor.
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Old 02-03-2016, 04:14 PM   #1272
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How do u fix a on power push? I am basically running malins eos setup but with 2.5 front caster?
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Old 02-03-2016, 06:10 PM   #1273
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Originally Posted by Vincent_Diesel View Post
I've asked this question before. For some reason this topic seems to get people around here aroused

Nevertheless I've been patiently waiting and have resorted to ordering part from Austria. Only place I can find the parts I need immediately. Had to pay 21 Euros just for the shipping. That's how desperate I was.

From what I have been told, the demand is very high right now because this brand has exploded and with reason. X-ray is doing great things in the industry. That's a good thing I suppose.

Those are all parts that were just released in the last week. I'm sure RCAmerica either just got them this week or they are in the next shipment.
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Old 02-03-2016, 08:37 PM   #1274
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Good news stock racers! I sent an email to Exotek about making a slipper eliminator and this is what they said:

Hi Sir!

That's good to hear that there is demand for this because if ours passes QC then we should have them on sale next week!


Thanks for your support,

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Oceanside, CA 92056 USA
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Old 02-03-2016, 08:52 PM   #1275
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I've only owned Xray cars for a couple of months now and I'm sold on them. However, if they can't get the parts thing figured out its going to be a deal breaker. In order to make it in the US market they need to make it a little easier for people to race their cars. Knock on wood, I haven't broken a single part yet. I'm more concerned about having replacement parts for maintenance. Its crazy that I cannot even get a spur gear.
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