Pre-Order | Releasing March 2027
OS Engines O.S.SPEED R21 EURO3 3.49cc Nitro Engine
OS Engines - OSM1FP00
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OS Speed has achieved an overall increase in power output while maintaining the smooth, flat power characteristics of O.S. SPEED R21 EURO2. The cylinder liner features a newly designed 7-port, while the piston gets a special treatment to reduce the risk of seizure and enhance durability. Low-to-mid range has been improved by optimizing the counterweight of the crankshaft. Additionally, the outerhead features a new design that boosts cooling performance.
Product Details
In The Box
OS Speed has achieved an overall increase in power output while maintaining the smooth, flat power characteristics of O.S. SPEED R21 EURO2. The cylinder liner features a newly designed 7-port, while the piston gets a special treatment to reduce the risk of seizure and enhance durability. Low-to-mid range has been improved by optimizing the counterweight of the crankshaft. Additionally, the outerhead features a new design that boosts cooling performance.
Product Details
In The Box