WISECO 86.5MM PISTON SET 10.6:1 COMPRESSION

FOR 08-14 YAMAHA 1.8L FZR, FX, SHO 0.20" OVER
These pistons are made using the exact same forging process as our shelf stock parts only they are built from the ground up using specifications or example pistons given by the customer. We have been making custom pistons for all segments in powersports for decades, so you can trust us with a quality build. We pride ourselves in being able to manufacture just about any piston when other companies may so no because it does not fit into their mold of manufacturing.