TOMOS A35 and A55 jammer clutch version 1.01 - 1st gear
TOMOS A35 and A55 jammer clutch version 1.01 - 1st gear



here's what ya get in this PARTYYY!:

version 6.4!!!

new 3 shoe clutch for tomos A35 and A55!!! finally! a solution to the terrible cork lined stock 1st gear clutch. turn your tomos into a rocket ship. seriously...hang on cause this thing RIPS.

comes with 3 sets of springs 1.5mm, 1.6mm, and 1.7mm (spring wire diameter). The weakest springs are installed on the clutch when you get it.

***Note: You may experience a very tight fit around the splines. Most will not experience this, but if you do just use a small triangle file to slightly open the hub splines***

NEW best fluid is motorex ATF as it's designed specifically for crazy high stall spin-out performance on KTM dirtbikes. royal purple is also a winner! we're busy dudes currently working on jammer v12 so we encourage everyone to try different oils/fluids and report back with your findings. actually, you'll need to have a full report written from the tribologist if you decide to use something crazy.

***we suggest soaking the clutch in atf or whatever oil you plan on running over night to saturate the friction material prior to running it. this will help prevent premature de-lamination/excessive wear of the friction material.***

due to massive fluctuations in manufacturers, manufacturing processes, etc in the tomos clutch bells, some have large spot welds that protrude enough to cause the jammer to bind when installed. if this occurs, you will need to grind down these protrusions until everything spins freely. if you have access to a lathe, you can lathe down the high spots of these spot welds to introduce the proper clearance necessary for things to work properly.

NOTE !!! -- this clutch comes partially to fully disassembled since you are going to be changing the springs around anyway. you MUST use some thread locker on the countersunk m6 bolts once you've tested out the springs and figured out which set ya like best! the steel body and brace may also be BLACK instead of silver!!

remember! this is a high performance clutch. you should be proactive about changing transmission fluid and checking in on the transmission/clutches to make sure everything is performing properly. on highly tuned setups this is especially important because high clutch stall puts a lot of stress on both the clutches and all of the internal gears! stay safe out there! give it a checkup often!

total weight of the clutch - 266.6g +/- 5g
shoe weight - 37.5g per shoe +/- 0.5g
10.9 grade black oxide hardware (already installed with thread locker)
hardened clutch hub

replacement clutch shoes can be found here.

taco rating taco rating 4.5 of 5 4.5 of 5 Total Reviews: 8 give your taco rating here

  1 taco eaters like this review
5 of 5 Tons of potential-make your bike a wheelie machine June 20, 2021
taco eater : Puck from FL, United States  
Heaviest springs included fully engage around 5400rpm...but pro tip: Malossi Maxi springs ( work and will give you even more RPM for dig ripping. Around 6k on the whites, 6300ish on the yellows, and 6500+ with the reds. Really helps get on the pipe quickly if you have a big boy kit and high RPM pipe setup, and reduces the 1-2 shift delay if you're on a 2sp. Not as good as a vari, but gotta take what you can get. Using on a Gila kitted Tomos on a 90s GT Dyno that goes way too fast way too quickly. Note that low speed cruising (~20mph and under) is pretty much impossible with the yellows and reds, slips too much and makes a ton of heat, so be prepared to blast-n-coast around slow neighborhoods.

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5 of 5 A35 Frankenstein June 20, 2019
taco eater : Bogdan Balagurak from Ephrata, PA United States  
This clutch... this clutch is excellent! smooth shift into second and keeps the power, hills are really nice too, very torquey. Only issue I had was putting it on, the included shim did not let the crank spin so I ground the spot welds on the bell and the 3 bolts on the clutch with a dremel and all is fine. Solid

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5 of 5 niiiice March 5, 2019
taco eater : James olson from burnaby, BC Canada  
so the clutch works great,, no lag off the line, straight power... one thing is though, now the gear clicking sound has become at least twice as loud,,,not sure why as i didnt touch the gears. but clutch is awesome

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  6 taco eaters like this review
3 of 5 Bolt Issues February 13, 2018
taco eater : Casey E. from Washington, DC United States  
If you're having problems getting the clutch to spin freely in the clutch bell like I did, you're going to need to buy some shims or file down the bolts on the back of the Jammer. The bolts stick out slightly and catch the clutch bell which was a pain in the arse for a novice mechanic to diagnose. Hope the next batch of Jammers come without this issue.

5 tacos for treats customer service.

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  6 taco eaters like this review
5 of 5 Worthile upgrade August 12, 2017
taco eater : Anonymous Person  
Pretty sick.
The next trick should be a 2nd gear version.
That'd be a treat.

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