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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 11-23-2015, 02:25 AM   #181
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Can anyone confirm that shocks pistons of the XB2 are the same dimensions as the XB4 ones?
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Old 11-23-2015, 02:42 AM   #182
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Quote:
Originally Posted by punkracer24 View Post
If all of the info is right it seems as though you will only need 2 pieces that are different from the carpet car, The gearbox and motor plate.

You may need a couple other small things but those are the two main ones. The rest of the car is all the same between the two additions.
The shock towers on the dirt car in the pictures look like they have different heights and angles to the carpet towers so you will probably need those too as the droop will be different

The release also states a different waterfall and battery brace will be needed
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Old 11-23-2015, 02:50 AM   #183
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Xray XB2 Carpet Edition is now shipping to distributors

Dirt Edition will be ready in a few weeks.



Bent
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Old 11-23-2015, 03:07 AM   #184
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Quote:
Originally Posted by Xan83 View Post
Can anyone confirm that shocks pistons of the XB2 are the same dimensions as the XB4 ones?
Shocks, pistons and springs are the same that are used on the XB4 '16.

Bent
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Old 11-23-2015, 03:14 AM   #185
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Quote:
Originally Posted by mojo tom View Post
We have no idea about what the dirt version will come with, it's not out yet.

I didn't think they would have include two sets of composite parts on the carpet edition, they will balance both kits parts wise for sure so who knows, it could come with two gearboxes.

I'm curious to test the carpet with medium parts and shocks on the rear on medium traction. I'm also wondering if we need to go all in and change all the parts to either medium or hard or if we could go subtle and mix them (Bent ?)

I like the fact that they include those two sets of parts, besides tuneability this is also a good spare set just in case something breaks (I wouldn't be concern to change casterblocs in case I broke one and finish the race).


Regarding pistons they look thinner than the standard so I don't think you will be able to fit Kyosho/AE ones, don't know about Losi. I like Schelle machined ones myself and they have a specific range for Xray.
We run a mix of medium, hard, graphite, alu. and brass parts for different conditions

Shocks and pistons are the same as the XB4 '16.

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Old 11-23-2015, 12:43 PM   #186
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Looks like a great kit. However does anyone else find the ads a bit 'creepy'? Might just be me. Men in weird suites sitting in gold chairs. It's a bit 'Willy Wonka'
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Old 11-23-2015, 12:45 PM   #187
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Originally Posted by Brit_racer View Post
Looks like a great kit. However does anyone else find the ads a bit 'creepy'? Might just be me. Men in weird suites sitting in gold chairs. It's a bit 'Willy Wonka'
They're European. Much more refined tastes in fashion compared to most sloppy Americans.
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Old 11-23-2015, 01:26 PM   #188
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Quote:
Originally Posted by BentKa View Post
We run a mix of medium, hard, graphite, alu. and brass parts for different conditions

Bent
You know it means we will bother you even more after saying that considering all the variables !!!

I have to say lots of your posts collected from forums are very useful, either concerning Xray or Orca. Guess you could write a 1/10th off-road book for Juraj to print.
The cars are great, relaxing to know you could push and the car will not break at first crash plus support is great and very precise.

I should have mine in a few days, can't wait to run it, especially find out how stable the car is compare to others laydown cars.

It would be nice to know what basic springs and options set could be useful at first and if you run some weight somewhere so we can plan ahead.

Last edited by mojo tom; 11-23-2015 at 01:45 PM.
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Old 11-23-2015, 06:34 PM   #189
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Everything is telling me to get the carpet and then add the dirt tranny and motor plate later. I mainly run on clay. 75% of the time, the tracks are grooved up in the line and slightly dusty outside. Thoughts?
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Old 11-23-2015, 06:49 PM   #190
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Quote:
Originally Posted by BentKa View Post
Xray XB2 Carpet Edition is now shipping to distributors

Dirt Edition will be ready in a few weeks.


Bent
Do you know if this will include XB4 16 spare parts?

I've more chance of finding hens teeth in Australia than a front or rear arm, bulkhead, spur...one break and I'm out of action.

If anyone knows of a reliable supplier that will ship to Australia please feel free to send me their website address.

Thanks!!
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Old 11-24-2015, 08:31 AM   #191
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Quote:
Originally Posted by Nat Maniac View Post
Do you know if this will include XB4 16 spare parts?

I've more chance of finding hens teeth in Australia than a front or rear arm, bulkhead, spur...one break and I'm out of action.

If anyone knows of a reliable supplier that will ship to Australia please feel free to send me their website address.

Thanks!!
Let me know what part numbers you need. I'm not a supplier but I'm willing to help get you what you need.
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Old 11-24-2015, 09:09 AM   #192
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Quote:
Originally Posted by gticlay View Post
If you get one of the early kits with the ball diff, definitely get the first release car and then order up the very few parts you'll need to convert to the "dirt" edition.
My local hobby store still doesn't start to take the pre-order yet. So doesn't know will the kit will come with additional ball diff or not. If do, I will go in this way. Thanks of your idea.
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Old 11-24-2015, 10:25 AM   #193
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Would be nice to see some photos of kit configured with the "Dirt" Edition mid motor setup...
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Old 11-24-2015, 10:36 AM   #194
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Quote:
Originally Posted by slakr View Post
Would be nice to see some photos of kit configured with the "Dirt" Edition mid motor configuration...
You will have to wait for the official release in a couple of weeks for that

Bent
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Old 11-24-2015, 10:39 AM   #195
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Quote:
Originally Posted by mojo tom View Post
You know it means we will bother you even more after saying that considering all the variables !!!

I have to say lots of your posts collected from forums are very useful, either concerning Xray or Orca. Guess you could write a 1/10th off-road book for Juraj to print.
The cars are great, relaxing to know you could push and the car will not break at first crash plus support is great and very precise.

I should have mine in a few days, can't wait to run it, especially find out how stable the car is compare to others laydown cars.

It would be nice to know what basic springs and options set could be useful at first and if you run some weight somewhere so we can plan ahead.
We run the included 1dot springs for the most part.

On smaller tighter tracks we run it unweighted.

For the EOS we ran a brass bulkhead and weight plate under the LiPo.

We also run 2 hole pistons……. 2x1.6 and 2x1.7

Bent
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