O.S. SPEED B2103 TYPE-S .21 Buggy Off-road Racing Engine w/T-2100SC Muffler

- The long-stroke off-road engine put a high value on torque in low-middle range with smooth operation and better fuel mileage.

- The crankcase, carburetor and cover plate, and inner head are designed new.

- All the parts are interchangeable to those of TYPE R’s.

- High vertical finned ow-profile cooling head for improving the drivability and better heat dissipation.

- The new DLC coated crankshaft has two tungsten counter weights for smooth rotation and the best balance.

- A newly designed 3-port cylinder& piston set.

- The inner head with an silicon O ring for reducing vibration and preventing dust.

- A newly designed 22D carburetor, which produces high response and smooth acceleration.