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Schumacher's new K2 4wd buggy ..!

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Schumacher's new K2 4wd buggy ..!

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Old 08-11-2016, 07:12 AM   -   Wikipost
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Last edit by: AmiSMB
Welcome to the Schumacher K2 Wiki!

Please feel free to add tips and tricks as well as any information that you would feel is beneficial for everyone to know.

Introduction and Pictures Introduction and Pictures


Setup SheetsSetup Sheets

EmulsionShocksEmulsion Shocks

Tony Newland Gear Diff BuildTony Newland Gear Diff Build

Help I Keep Breaking Front Arms

With the K2 Schumacher sarted using an adjustable hub design that required
a relief cut in the arms for the steering knuckle to clear. The easiest solution
until a revised arm is to run the old style arms without the relief cut. Run the
hubs in the High position and set your steering end points down so the steering knuckles don't hit.

SCHU3407 MED Flex

There is a newer batch of the SCHU3407 wishbones which correct the weakness in the previous front arms.

Suggested upgrades/spares
Strongly suggest to buy 10į alloy front alloy pivot blocks-U3556 the A & B front plastic pivot blocks-U4798 will break soon.

Have some shock seats spares, alloy v1-U3611, plastic-U3937, alloy v2 (off-road)-U4890

Have some spare shock shafts available U3668 & U3669
MIP pucks an Excellent option!


Other wheels that fit apart from the Schumacher wheels
Losi 22-4 wheels will fit on the front the rears will work as well!
AE b4, b5 & b6 will fit on the rear
Be sure to lock tight the track screws and rear strap this is a must!!!

AE (12mm) and KYO fronts will work with .5mm spacer - available through AVID

Don't buy the purple titanium turnbuckles as an upgrade there thread is too small and they wander too much. Lunsford Super-duty titanium turnbuckles fit very well they are 3.5mm threads. Get the 1 3/4", 2 1/8" & 57mm lengths. I did not replace the Centre Track Rod.

** When running the Super Duty turnbuckles with the stock captured ball ends, be sure to check for binding in the front steering and camber links after each run - tumbles and glances off the pipes cause them to flex and slightly twist and can bind up the front suspension ... The fix? - simply take a turnbuckle wrench and twist the link back and then forward to it's original positon .. consider doing this as a maintenance step after each run ..

Suggested Gearing

5.5 - indoor high bite clay 83/20 (+/- 1 tooth for layout and conditions etc)
13.5 At SRS Arizona I ran 75/28 buggy was quick! RCM lockout worked great!
17.5 - FDR between 5-6 depending on track. E.g. 35/66 down to 30/69 slipper eliminator in use. Different options within the thread. I use B5M exotek eliminator and file it to fit.

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Old 04-17-2021, 12:54 AM
Tech Adept
Join Date: Aug 2016
Posts: 127

Originally Posted by StupidHead
Thanks very much for taking the time to give such a detailed answer.
You're welcome. Hope it helped.
Typpo is offline  
Old 09-15-2022, 01:16 AM
Tech Rookie
Join Date: Jul 2020
Posts: 3
Default Slipper eliminator

Originally Posted by Volition
Hi guys.

I had a b5/b6 exotek eliminator Iíd hand filed down, I used it for over a year. On Sunday week ago. I noticed it was not straight and making my spur gear wobble ever so slightly. So my idea was to get a carbon fibre washer to help straighten it up. In measuring up the shaft I came up with a rudimentary idea for a slipper eliminator. I sent it off to bezerk rc. By the end of the week I had a beautiful new slipper eliminator to test. The test was brilliant the car had never be so smooth on power delivery, and not a mark on either gear. Using a polypropylene plastic pinion and Kimborough spur. I qualified 2nd on a dusty grooving up track and ended up taking the win in 3rd final overall. We run 17.5t in Australia for stock classes, but this will be no problem with 13.5t. I think itís great.

Anyways it weighs a total of 1.5 grams, maybe if there is interest he might do a run of them so Iíll let you guys know. Itís 2 pieces carbon fibre flange and a alloy tube. He also gave me the idea to buy another layshaft cut it down and Iíll tap a m3 thread into it. Basically just the carbon fibre flange with no extra shaft. Iíve ordered it and will post once I get it going. But for now this is a great solution making sure you can also put back on your slipper.

Bezerk RC Schumacher Cat K2 slipper eliminator (installed alloy tube, flange not visible)

Bezerk RC Schumacher Cat K2 slipper eliminator (Flange, carbon fibre)

Hey mate

I kw this is a long shot but do u still hav these or kw ov any1 that has them
im trying to do a lockout on my KF2se and my cat L1

Elmo2003 is offline  
Old 09-16-2022, 06:49 AM
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Location: Orange County CA
Posts: 429
Trader Rating: 1 (100%+)

Originally Posted by Elmo2003
Hey mate

I kw this is a long shot but do u still hav these or kw ov any1 that has them
im trying to do a lockout on my KF2se and my cat L1

This guy will make you anything you want. Amazing stuff. https://bezerk.com.au/shop/index.php
scoobyrs25 is offline  

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