78-79 Yamaha XS750 Bigbore pistons kit with Head Gasket Aftermarket Piston size: 71.50mm(3.50mm oversize) Set includes: pistons, pins, clips, rings and head gasket Cylinder boring required. Air postal charges are determined by the weight of the package, and not the number of the contents.If a defect is found, the item will be exchanged for another. The item "78-79 YAMAHA XS750 828cc BIGBORE PISTONS KIT 71.50mm PISTON 10-XS750BB" is in sale since Thursday, September 29, 2016. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Pistons, Rings & Pistons Kits". The seller is "cruzinimage_co" and is located in Chiba, default. This item can be shipped worldwide.