OS Engines O.S. Speed R2105 Engine

The O.S. SPEED R21 series won the previous World Championships held in the United States.The "R2105", most of the parts has been newly designed, aiming for consecutive victories at the world championship to be held in Japan this year. Key Features Adopts Newly Designed Ports Redesign Of The Crankshaft’s Counter Weight Polished Finish Is Applied New Mold Adopted For The Crankcase Thrust Plate Made Out Of Steel icon-boxIn The Box (1) O.S. Speed R2105 Engine (1) Reducer (8.5mm RED) (1) T-RP7 Glow Plug (1) Exhaust Seal Ring (3) Dust Caps (3mm, 16mm, 18mm)