YSR50 - Piston Kit searchfilter_Replacement Parts FOR 89-01 you may need

FOR 89-01 you may need to modify the holding tab

Tunable for sound1 year manufacturer warranty

Getting a second set of rollers in a different weight will give the advantage of "tuning" for your riding preferences

Lifetime Limited Warranty

YSR50 - Piston Kit searchfilter_Replacement Parts FOR 89-01 you may needWisecos legacy is rooted in 2 stroke piston manufacturing and performance, dating over 80 years ago back to 1941. Today, Wiseco 2 stroke pistons are the result of decades of experience, incorporating the latest in 2 stroke piston manufacturing and design to deliver the performance Wiseco built its name on. Engineered, forged, and machined in the USA in Mentor, OH Designed and built for each specific 2 stroke powersports engine Improved tensile