Cylinder and piston
A large 88 mm bore and 57.5 mm stroke cylinder is professionally engineered from high-strength aluminium for maximum reliability, and houses the high performance forged bridged-box-type piston from CP. For 2023, the compression ratio is increased to 14.6:1 for improved torque and peak power. Engine responsiveness is further improved thanks to optimised valve guides and valve shaft diameters precisely engineered using computational fluid dynamics (CFD).