DOHC cylinder head
Featuring finger followers treated with a Diamond-like Carbon (DLC) coating, the DOHC cylinder head is engineered for high-level performance and further refined for 2023 with multiple revisions to improve performance and durability. The titanium intake valves remain at 32.5 mm while the exhaust valves increase in size to 27.5 mm – a direct result of the new bore/stroke ratio, which in turn optimises gas flow. These revisions allow the FC 250 to rev freely and produce strong and efficient power throughout the rev range up to its 14,000 rpm limit.
