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The OS Engines MAX-B21 engine is for entry-level and sports users as it is easy to use and has excellent cost performance. Based on the O.S. SPEED series engine, it has a well-balanced combination of smooth speed and power delivery. This combo includes a TB02 EFRA2089 (T-2090) & MB01-75 and…
As OS's long-selling model, the 1/10 touring car engine "MAX-12TG" series is loved by many users. A long-selling engine that has been supported by a wide range of people, from beginners to intermediate riders and veterans who participate in touring car races, has now been updated with various parts and…
As OS's long-selling model, the 1/10 touring car engine "MAX-12TG" series is loved by many users. A long-selling engine that has been supported by a wide range of people, from beginners to intermediate riders and veterans who participate in touring car races, has now been updated with various parts and…
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
Inner Head Improves Idling Performance
Outer Head Has Been Made Lighter
Crankshaft Uses Two Tungsten Counterweights
5 Scavenging Ports And 3…
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…
The OS Speed B2105 RC engine has evolved into the fifth generation of the B21 series. It is designed to secure power that gives an advantage in harsh off-road racing scenes and pursues a driving feel that steadily demonstrates performance in any situation. By re-designing the cylinder liner and crankshaft,…
The OS Speed B2105 RC engine has evolved into the fifth generation of the B21 series. It is designed to secure power that gives an advantage in harsh off-road racing scenes and pursues a driving feel that steadily demonstrates performance in any situation. By re-designing the cylinder liner and crankshaft,…
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…
The O.S. SPEED R2106 is a factory-tuned engine developed for 1/8 on-road racing competitions.
Product Information
The OS Engines Speed R2106 on-road engine, which has further evolved as the flagship engine that O.S. is proud of, has improved the output characteristics in the mid-speed range by reviewing the shape of the…
The O.S. SPEED R2106 is a factory-tuned engine developed for 1/8 on-road racing competitions.
Features
Includes a TR03 EFRA2196 Pipe
Specifically designed and tuned for 1/8 on-road racing competitions
Newly designed 9-port cylinder liner to enhance mid-speed power
…
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…