Yamaha YSR

Yamaha OEM Piston Pin, 12mm for YSR50

Replacement OEM Rear Wheel Seal. Keep the dust out! 

Polini's famous round slide, Italian made CP21 carb, not offered for the YSR50. This is a killer option for your stock, or mildly tuned setup. Come...

This is new old stock that fits the yamaha 2nd over piston. these are no longer available! Includes top ring, bottom ring and expander ring. This i...

Discontinued by Yamaha, we have one fork spring for the YSR50, this is the original fork spring, not the additional second fork spring. P#  2AL-231...

Yes, there has been a price increase...… Kit contains:              TCR  price                 Yamaha price   1 6mm Upper              3.49        ...

New Shift Lever- Get 'em while we got 'em!  these are hard to get! (no longer available from yamaha)

Folding Shift Lever- Limited  Quantites are on their way! (1/21/24) Black Powder Coated these are hard to get!

Wiseco’s legacy is rooted in 2-stroke piston manufacturing and performance, dating over 80 years ago back to 1941. Today, Wiseco 2-stroke pistons a...

YSR50 Fork slider kit, includes longer axle, and two CNC billet aluminum sliders with delrin pucks and stainless set screws.  Sliders are made in U...

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