Clutch and Drive

Blue Print Secondary Rollers

SBM sized these rollers just right to fix the production variance in the roller pin holes, stud pedestals, helix mounting face and ramps. The five secondary rollers included, range in size and are designed to blue print equal pressure in … More Info

Clutch Guard and Belly Pan Saver

If your belt blows and it will! The factory clutch guard (if applicable) will be destroyed along with the belly pan plastic. This clutch guard / belly pan saver eliminates this and installs in minutes. Preventative measure:  It is a … More Info

Clutch Kits-Sidewinder

  Schmidt Bros Motorsports is proud to introduce our newly developed “Wide Range Torque Monster Clutch Kit” for the Sidewinder lineup. This is the most comprehensive set-up on the market, Period! Everything but the kitchen sink is included in this … More Info

Clutch Puller

This is a high quality hardened and gold zinc plated clutch puller that fits 1992-Present Yamaha Primary Clutches. This puller will not bend and pretzel up like others on the market.

Clutch Rebuilding and Tuning Service

Send us your clutches and we will evaluate there condition and give you a quote on a solid rebuild. A full rebuild Includes: “Grunt Tool” disassembly, all bushing and worn parts replacement. Full assembly, tuning, a spin check in the … More Info

Comfort Clutch Kit

The Sidewinder Comfort Clutch kit is for those who are looking for a far smoother engagement and a 85% reduction in clutch noise. This simple looking but extensive kit will grab and hook up on the belt at 3-4 mph … More Info

Do It Yourself Clutch Tuning Kit

This kit is for the Do It Yourself Clutch Tuner. Includes an assortment of calibrated and gram matched tuning rivets and a high quality gram scale. The gram scale on the left has been is service for over 8 years. … More Info

EZ-Off Belt Guard Bracket

This EZ-Off Clutch Guard Bracket was made to allow you easier access to the belt and clutches. The factory permanently rivets the clutch guard in place. This makes it almost impossible to replace a belt on the trail. Although this … More Info

Fast Trail Stud & Runner Combo Kits

We have done the R&D and found that the Woody’s 5/16″ mega bite 60 degree carbide studs and backers rock. Couple that with a set of 6″ 60 degree carbide runners and you will have full control. Base kit includes … More Info

Heavy Primary Clutch Tuning Rivets

Schmidt Bros Motorsports exclusive, high performance, heavy tuning rivets that are cast right here, in our shop. Add weight in the meat of the power for increased power levels, whether naturally aspirated or boosted. Yamaha makes tuning rivets in the … More Info

High Performance Replacement Primary Clutch Rollers

Replacement 14.7mm and 15.7mm primary clutch rollers. These exclusive SBM rollers are the same ones that are used in our clutch kits.  The outer roller shells are Rockwell 70 hardened material and are slightly wider than the factory rollers.  This … More Info

Primary Clutch Overdrive Machining

Before After Send us your “whole” primary clutch and we will modify it to give you an additional 4-5 mph on your top end without effecting any low end or mid-range performance whatsoever.  Over drive machining does two things.  This … More Info

Primary Clutch Spring Shims

Tune your engagement rpm with theses primary spring shims. They are .072 thick and raise engagement rpm about 300 rpm per shim. Price each: $8.99

Quiet Clutch Shim Kit

These custom specialty anti-rattle flyweight side shims and roller pin shims greatly reduce unwanted noise & wear in the primary clutch. Available for all 1992 up Yamaha 2 & 4-Stroke Models. Noise will be decreased by 75% to 85% and … More Info

Secondary Helix Overdrive Machining

Send us any factory or aftermarket secondary helix and we will machine the inner limit hub to our spec. Also the spring pocket where coil bind can occur. This will give you an additional 5mph on the top end without … More Info