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The high-performance GT engine has evolved into the next generation! This OS Engines R21GT II On-Road Nitro Engine features a newly developed underhead, cooling-head, and crankshaft, specially made to fit on-road GT tracks.
Features
This combo comes with TB01 EFRA2042 (T-2060SC) + MB01-70 (M2003SC)
Inner Head Improves Idling Performance
Outer Head Has Been Made…
The O.S. SPEED B21 Adam Drake Edition 3 is an improved version of Edition 2, developed in collaboration with O.S. international team driver ADAM DRAKE, who is famous for his deep knowledge and sound technical advice.
Features
Developed in collaboration with O.S. international team driver and multiple ROAR Champion, Adam Drake
By adopting…
The O.S. SPEED B21 Adam Drake Edition 3 is an improved version of Edition 2, developed in collaboration with O.S. international team driver ADAM DRAKE, who is famous for his deep knowledge and sound technical advice.
Features
Includes T-2090 pipe
Developed in collaboration with O.S. international team driver and multiple ROAR Champion, Adam…
OS Engines Speed B21 Ronda Drake Edition 2 .21 Buggy Engine
The O.S. SPEED B21 Ronda Drake Edition 2 is an improved version of the previous model, which was developed in collaboration with O.S. international team driver ADAM DRAKE, who is famous for his deep knowledge and sound technical advice.
Features
Based on…
OS Engines Speed B21 Ronda Drake Edition 2 .21 Buggy Engine with T-2090 Pipe
The O.S. SPEED B21 Ronda Drake Edition 2 is an improved version of the previous model, which was developed in collaboration with O.S. international team driver ADAM DRAKE, who is famous for his deep knowledge and sound…
Overview
OS SPEED's off-road racing engine has evolved even further! The 4th generation of the B21 series, the "B2104" is a long-stroke engine that has improved response in the low range, more torque in the middle range as well as consistent idling.
Features
New piston/liner is a conventional 3-port type enabling more torque…
Overview
OS SPEED's off-road racing engine has evolved even further! The 4th generation of the B21 series, the "B2104" is a long-stroke engine that has improved response in the low range, more torque in the middle range as well as consistent idling.
Features
Equipped with TB03 (T-2100, EFRA 2155) silencer with 80mm manifold…
O.S. Engines have introduced their updated version of their R21 Euro 1/8th On-Road Nitro engine with the R21 Euro II. It inherits the smooth and easy-to-use feeling of its predecessor, with new features to improve performance.
Features
Updated laser graphics on the cooling head
High cooling performance and lightweight outer head
O-ring embedded inner…
OS Engines Speed R21 Euro II .21 Nitro On Road Engine with TR01 Pipe and MR02 Manifold
O.S. Engines have introduced their updated version of their R21 Euro 1/8th On-Road Nitro engine with the R21 Euro II. It inherits the smooth and easy-to-use feeling of its predecessor, with new features to…
The O.S. Speed R2105 Engine is a factory-tuned engine developed for 1/8 racing competitions. It is based on its predecessor, the R2104 engine, and has been further improved to have an easy-to-handle feeling that can be used on any course.
Features
Based on the R2104 engine with improvements
Performance is improved by adopting…
OS Engines Speed R2105 .21 On Road Engine with EFRA2165 Pipe
The O.S. Speed R2105 Engine is a factory-tuned engine developed for 1/8 racing competitions. It is based on its predecessor, the R2104 engine, and has been further improved to have an easy-to-handle feeling that can be used on any course.
Features
This…
Overview
O.S. SPEED T1204 is the successor of T1203 which is the World Champion engine in 2018. O.S. Engines T1204 has more toque in low-middle range with better performance. Two tungsten weights are embedded in the counterweight of the newly designed crankshaft, which helps powerful performance in the middle range. The…
Overview
O.S. SPEED T1204 is the successor of T1203 which is the World Champion engine in 2018. O.S. Engines T1204 has more toque in low-middle range with better performance. Two tungsten weights are embedded in the counterweight of the newly designed crankshaft, which helps powerful performance in the middle range. The…