The 136CI Big Bore kit delivers serious performance while keeping the factory look intact. The 4.320" bore forged pistons and color matched cylinders are designed to work with the 121CI stock 4-5/8" stroke flywheels to offer 136CI of Big Bore power as a bolt on kit. Works with stock crankcases and requires no machining. Even the original engine serial number stays with the bike. The black granite cylinders with highlighted fins closely match the factory finish, giving your CVO the sleeper look while packing a whole lot more engine underneath. Available in 11:1, 12:1 and 13:1 compression ratios, the kit includes cylinders, pistons, gaskets, base shims and S&S cam cover badge.
