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R/C Tech Forums Thread Wiki: 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 11-06-2015, 12:44 PM   #46
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Will be interested in this. I love my b5m though. But, just got an xb4, which is a great car.

Interesting that it comes standard with a gear diff.
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Old 11-06-2015, 02:14 PM   #47
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Looks like there will finally be a car that it won't take an hour to get the diff out...

I'm really excited to see how it turns out, I'm just hoping part 2 isn't "and we never got it working well on lower grip so we're going to continue developing it for another year."
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Old 11-06-2015, 02:25 PM   #48
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3 or 4 gear transmission?
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Old 11-06-2015, 11:56 PM   #49
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Quote:
Originally Posted by gticlay View Post
I am curious if there's any aftermarket bodies, like maybe the new Pro-Line Predator, that will fit the new car. It's tough to get a new buggy then wait a looooong time for the painter to get the body painted. I did see a PL body on a prototype so hoping that something for the B5M will fit.

http://www.prolineracing.com/bodies/predator-b5m/
We did run some B5M bodies early on for some of the prototypes but they're really not a good fit. Shape of the chassis is different and you will also have to cut out of the body to not have the spur gear cover interfering.

Some of the newer bodies for the B5M might be a better fit but we haven't tried any of them since we now run Xray bodies

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Old 11-07-2015, 12:00 AM   #50
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Quote:
Originally Posted by Socket View Post
3 or 4 gear transmission?
You will either have to study the pictures or wait a few days for the release to know for sure

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Old 11-07-2015, 05:48 AM   #51
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I'm guessing it will have both. Bayer mentioned being able to change motor placement. What better way to do that then to have two casing options. One will have a lay down lcg setup and the other will be with the motor farther back for low traction. Combine that with chassis flex options, this car could very well be the best mm car out for a low bite surface. Look at this picture, clearly shows two transmission options.
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Old 11-07-2015, 09:01 AM   #52
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Quote:
Originally Posted by BentKa View Post
You will either have to study the pictures or wait a few days for the release to know for sure

Bent
I hope your idea of a few days is inline with mine Really want to see this car close up.
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Old 11-07-2015, 09:46 AM   #53
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Has it been a few days yet? *drool*
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Old 11-11-2015, 11:03 AM   #54
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ok it's been a few days. Can I have my buggy now?
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Old 11-12-2015, 02:35 PM   #55
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any idea on release date?
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Old 11-13-2015, 05:38 AM   #56
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Part 2 of the Story is up on NeoBuggy http://www.neobuggy.net/2015/11/13/m...ay-xb2-part-2/

Looks like there is a lay down transmission along with a more tradition 3-gear (or 4, I can't tell) for mid or rear motor configurations. Very interesting that they're still giving the rear motor option.

Also, I'd assume that once they have the official release on the website that the car will be immediately available. That's generally how they go, full release and announcement on the same day.
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Old 11-13-2015, 06:01 AM   #57
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Wow are you serious!? Three motor positions! Absolutely brilliant and a major game changer. This is going to make all other companies look pathetic! So excited to see this car and I can't wait to get my kit in my hands! Now I can sell my yz-2 and b5m because I will have only 1 car capable of all three cars.
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Old 11-13-2015, 06:11 AM   #58
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A few pictures from part 2 of the story behind the making of the all new Xray XB2 2WD buggy which you can read on Neobuggy.net here:

Making the Xray XB2 part 2























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Old 11-13-2015, 06:12 AM   #59
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Quote:
Originally Posted by suby723 View Post
Wow are you serious!? Three motor positions! Absolutely brilliant and a major game changer. This is going to make all other companies look pathetic! So excited to see this car and I can't wait to get my kit in my hands! Now I can sell my yz-2 and b5m because I will have only 1 car capable of all three cars.
Been telling you guys the new Xray XB2 will be an awesome buggy

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Old 11-13-2015, 06:29 AM   #60
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Yea but you'll still have to upgrade every year which is why xray= thumbs down
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