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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 11-21-2015, 10:47 PM   #166
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How much is the kit?
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Old 11-21-2015, 11:27 PM   #167
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Malin on Facebook:
Quote:
#thatfeeling when your mechanic (dad) tells you to wait on the driver stand while he runs to the pits and return 4 minutes later having changed from a gear diff to a ball diff on your 2WD !!!!
The new XRAY XB2 is so easy to work on and makes setup changes a breeze (according to my dad)
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Old 11-22-2015, 01:23 AM   #168
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Amain is now showing the kits at $349. But they don't have an arrival date yet. RCAmerica is saying sometime by the end of November. Since they are the distributor I would believe that.

There are going to be some GREAT races this year with all of the new buggies!

Someone made a comment about Xray drivers testing with YZ-2 parts. That is actually great news, it tells me that they took the time to understand the performance of their top competitors. We do competitive analysis too and it let's us know that we are making a product that is superior to anything else.
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Old 11-22-2015, 05:36 AM   #169
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Really interested in the kit but not sure which version i'm going to get. I mainly run on dirt but i wanted the carpet option for the times i do get to run on carpet. With both of the kits at the same price i'm wondering if it will be cheaper to start with a carpet version then buy the parts to convert it to dirt version rather then buying a dirt version and having to buy all the parts for the carpet version.

The whole kit looks top notch..
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Old 11-22-2015, 05:59 AM   #170
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Thats my plan!!
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Old 11-22-2015, 06:19 AM   #171
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Hey Bent, are the pre-assembled ball diffs ready to run or do they need to be taken apart and greased?
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Last edited by symmetricon; 11-22-2015 at 04:42 PM.
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Old 11-22-2015, 06:38 AM   #172
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Quote:
Originally Posted by seth556 View Post
Well, here we go. http://www.neobuggy.net/2015/11/20/x...ed/#more-66608

I'm most excited about the 4 screw diff access, about time someone did that.
Sorry to say that Schumacher did this years ago. 4 screws and the diff is out on my Cougar SVR. Very nice car though!
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Old 11-22-2015, 06:53 AM   #173
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Quote:
Originally Posted by chamber View Post
Really interested in the kit but not sure which version i'm going to get. I mainly run on dirt but i wanted the carpet option for the times i do get to run on carpet. With both of the kits at the same price i'm wondering if it will be cheaper to start with a carpet version then buy the parts to convert it to dirt version rather then buying a dirt version and having to buy all the parts for the carpet version.

The whole kit looks top notch..
Hi guys, I'm new here. I wanna to try 1/10 buggy 2wd, as I already had a 4wd buggy.

I have the same view too. Same price as the two version. The carpet have more setting option parts than the dirt. It's hard to decide. I mainly run on dirt too Please give some opinion.
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Old 11-22-2015, 09:21 AM   #174
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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.
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Old 11-22-2015, 04:23 PM   #175
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pre-order done
does any one know what the final drive ratio is ?
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Last edited by light; 11-22-2015 at 04:47 PM.
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Old 11-22-2015, 04:56 PM   #176
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Ratio 2.65
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Old 11-22-2015, 06:34 PM   #177
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Quote:
Originally Posted by chamber View Post
Really interested in the kit but not sure which version i'm going to get. I mainly run on dirt but i wanted the carpet option for the times i do get to run on carpet. With both of the kits at the same price i'm wondering if it will be cheaper to start with a carpet version then buy the parts to convert it to dirt version rather then buying a dirt version and having to buy all the parts for the carpet version.

The whole kit looks top notch..
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.

Quote:
Originally Posted by symmetricon View Post
Hey Bent, are the pre-assembled ball diffs ready to run or do they need to be taken apart and greased?
They are pretty good out of the box ( in my experience with the XB4). you may need to make adjustments as it breaks in.

Quote:
Originally Posted by benz1625 View Post
Hi guys, I'm new here. I wanna to try 1/10 buggy 2wd, as I already had a 4wd buggy.

I have the same view too. Same price as the two version. The carpet have more setting option parts than the dirt. It's hard to decide. I mainly run on dirt too Please give some opinion.
see above.
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Old 11-22-2015, 06:58 PM   #178
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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.



They are pretty good out of the box ( in my experience with the XB4). you may need to make adjustments as it breaks in.



see above.

To have a working carpet setup thats probably all you need but there seems to be a lot more tuneability in the carpet version. With having access to both medium and hard composites for some parts. Not to mention all the graphite parts for carpet version. I know Xray did all that you have a car fine tuned for dirt but for a buyer that wants both full setups there probably is more value in buying the carpet version
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Old 11-23-2015, 12:51 AM   #179
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For those who knows.

What are the ammo pistons dimensions?
I need to know if I can use machined losi 22 pistons in the XB2 ammo.

Thanks.
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Old 11-23-2015, 01:06 AM   #180
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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.
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