01. Versatile power
When it comes to versatility, the DOHC 350 cc engine is second to none. By sharing much of its architecture with the engine found in the FE 250, the FE 350 delivers a fine balance between 450-rivaling power and lightweight 250 handling.
The FE 350 features an advanced DOHC cylinder head layout meticulously engineered to deliver performance and reliability. Internally, the DOHC layout features polished camshafts and low-friction DLC coated finger followers. Together with the lightweight titanium valves - 36.3 mm intake and 29.1 mm exhaust - they aid in delivering optimal performance.
Cylinder and piston
The 88 mm bore and 57.5 mm stroke cylinder features a compression ratio of 13.5:1 and a large diameter yet lightweight forged bridged-box-type piston. As a result, the low oscillating mass delivers exceptional power, high revs and a broadly usable power band.
The crankshaft is optimised for overall reliability to guarantee long service intervals of 135 hours. This has been made possible by a bushing-type bearing at the connecting rod and two force-fitted bearing shells at the big-end bearing. Additionally, an oil supply to the main bearing is integrated within the engine casing.