The cylinder piston and connecting rod, which are the main sliding parts inside the engine, are the same as the top model OSSPEED 21XZ-B Spec.II. The crankshaft with high balance characteristics keeps the high rotation before holding. Other parts are also equipped with a racing tune that brings out enough power.
The outer head of low center of gravity design adopts blue anodized color of OS engine tradition. The newly designed 22B2 carburetor, which determines the “version to” power characteristics, is equipped with a 77 mm reducer as standard. We adopted single adjustment carburetor and finished in user-friendly character in pursuit of manageability.