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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 02-14-2016, 01:13 PM   #1441
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Do the dirt and carpet cars share the same body?
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Old 02-14-2016, 02:32 PM   #1442
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the gear is facing the opposite direction, so i imagine it will be different since there is an imprint for the hole. From the pictures though, the rest looks the same
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Old 02-14-2016, 03:27 PM   #1443
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Im pretty sure the dirt edition body is the same as the carpet edition. You just have to cut out the slots for the gear cover. Has anyone tried to see if any other bodies fit? JConcepts? Proline? anything?
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Old 02-14-2016, 05:43 PM   #1444
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http://www.teamxray.com/xb2/2016/
when u watch this it flips once
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Old 02-14-2016, 06:31 PM   #1445
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http://www.ebay.com/itm/272113600444...%3AMEBIDX%3AIT
i like this 1
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Old 02-14-2016, 06:36 PM   #1446
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I drove one of these today for a couple of laps. This will be my next buggy for sure, very impressive.
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Old 02-14-2016, 11:58 PM   #1447
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Quote:
Originally Posted by Customworksking View Post
i like it a lot too, but the fact it doesnt have a window mask is the only reason i wouldnt buy it. i have 0 painting skills, so i surely would mess it up
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Old 02-15-2016, 02:54 AM   #1448
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Quote:
XB2 Alu Front Lower Arm Mounts

Optional front lower arm mounts
Swiss 7075 T6
Integrated kick-up
Fine set-up adjustment

Optional alu front lower arm mounts with different kick-up angles integrated.
Alu front lower arm mounts make the car more stable and increase on-power steering compared to standard composite front lower arm mount.

Optional mount #322313 with integrated 23/29 kick-up angle must be used together with #321211 Alu Front Lower Arm Mount 23/29 Kick-Up Brace - 7075 T6.

#322310 Alu Front Lower Arm Mount 26 Kick-Up - Swiss 7075 T6
#322311 Composite Front Lower Arm Mount 26 Kick-Up - standard
#322313 Alu Front Lower Arm Mount 23/29 Kick-Up - Swiss 7075 T6

http://bit.ly/1SKbtRG

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Old 02-15-2016, 02:56 AM   #1449
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Quote:
Originally Posted by CCristo View Post
Do the dirt and carpet cars share the same body?
Quote:
Originally Posted by rekim View Post
the gear is facing the opposite direction, so i imagine it will be different since there is an imprint for the hole. From the pictures though, the rest looks the same
Quote:
Originally Posted by dchavez697 View Post
Im pretty sure the dirt edition body is the same as the carpet edition. You just have to cut out the slots for the gear cover. Has anyone tried to see if any other bodies fit? JConcepts? Proline? anything?

The Dirt and Carpet Edition use the same body

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Old 02-15-2016, 09:28 AM   #1450
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Quote:
Originally Posted by wittyname View Post
The carpet edition comes with 2 sets of plastics , graphite towers , and a more expensive gear diff , yet the dirt edition costs the same and does not include any of those ....
Quote:
Originally Posted by BentKa View Post
The ball diff is the more expensive one, not the gear diff

And the composite towers have to have expensive moulds made for production.

The graphite towers are "just" CNC'ed.

But yes you are correct about the rest

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Quote:
Originally Posted by BentKa View Post
Read my post again.

I agree with you.

The initial cost of manufacturing the composite parts are higher.

I'm not talking about the retail price

And the ball diff is also more expensive to manufacture than the gear diff.

Believe or not but the profit margin on R/C vehicles are not much to brag about.

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Quote:
Originally Posted by symmetricon View Post
The 22 3.0 is 330$ and has zero machined carbon on it, same with the rb6 for 399$...
Quote:
Originally Posted by WesRaven View Post
Doesn't the dirt version also come with parts to make it rear motor? I was thinking the same thing Josh W. was until I considered the more expensive ball diff and rear motor parts.



I've definitely wondered this... I'm just thankful there are companies still doing it at the level they are.

Well , when I'm wrong I'm wrong .... After spending many a minute over the weekend really comparing the cars out there and the price points, both versions of this kit seem to be good values. I'm really surprised at what people are charging for 2wd kits now, and what actually comes in the box ...
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Old 02-15-2016, 09:28 AM   #1451
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So on my xb2 ce im having a severe bind issue in the rear because of the drive shaft. Anything I can do other then the new style CVD's that are not available? Only happens on right side. Very frustrated!
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Old 02-15-2016, 09:49 AM   #1452
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Is there any information to release yet on parts to make the xb2 a rear motor?

it would make me feel happy to know this
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Old 02-15-2016, 09:59 AM   #1453
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I wonder when some BFAST diff parts will be available...
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Old 02-15-2016, 10:08 AM   #1454
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I can't be sure, but I called RCAmerica to order some stuff and they said that the Dirt Edition cars haven't left Europe yet and that I could expect my shipment at the end of the month. I would assume that the supporting parts would be shipping with the cars. I get my stuff at the same time AMain does and I can tell you that the cars will not be here Friday. If you pre-ordered from AMain expecting them them to ship this Friday you will be disappointed. Xray is having issues keeping up with demand....they literally can't make kits/parts fast enough for the American market. They'll eventually catch up.
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Old 02-15-2016, 10:12 AM   #1455
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Quote:
Originally Posted by Patsfan12 View Post
So on my xb2 ce im having a severe bind issue in the rear because of the drive shaft. Anything I can do other then the new style CVD's that are not available? Only happens on right side. Very frustrated!
Take some pics and post them. I find it unlikely, not impossible, that the issue is design related. Are you sure everything on the car is installed correctly? Could there be something that you installed backwards or spaced incorrectly?
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