Upgrades square puck to round composite roller on '16-Up Polaris Built On Secondary Shaft (B.O.S.S.) clutches For applications that tend to flat spot rollers Reduces friction in backshift and upshift Running for long times at a steady speed is a classic way to flat spot rollers If you have issues with rollers not shifting due to flat spotting, the composite roller is for you If you are breaking rollers, look into Venom Torlon« roller upgrade.. CLUTCH COMPOSITE ROLLER
