Wiseco Racing Piston Kit for Yamaha 700 (standard 81mm bore) to 760 (standard 84.00mm bore) Cylinder
Wiseco Piston kit are high quality forged alloy pistons and include rings, piston pin and circlips
Stock 701 61X cylinder fit until 84.00mm with stock sleeve, 64X 760 cylinder allow until maximum 86.00mm bore (=789cc)
Modification Big Bore is allowed ISBA Stock Ski Lites (850cc rule) and UIM GP3 (800cc)