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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…
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 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 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…
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…
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…
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…
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…
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…
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…
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 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 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…
Features
Performance that rivals that of the acclaimed Speed 21XZ-B Spec II
Shares the same piston, liner and con rod as the Speed version
Lightening holes in the cylinder head reduce overall weight
Other enhancements include a lower CG and improved cooling
A 22B2 single needle carb makes tuning a breeze
Optimized power band
Silicone filled crankshaft…
Overview
The O.S. 21XR-B Ver.3 club-level nitro GT and off-road engine. The power plant targets club level drivers and it features the 21J3 3-needle carburettor with 7mm and 8mm venturi inserts.
Specs
Displacement: 3.49 cc
Bore: 16.27mm
Stroke: 16.80mm
Intake ports: 3-port
Practical RPM range: 4,000 – 40,000 rpm
Max. power output: 2.42 hp / 34,000 rpm
Weight: 380g…
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 and can be used in on-road and off-road racing situations.
Features
For…
Overview
This is the O.S. Max .21 TM Engine with the Revo Manifold (also fits Traxxas Slayer). This engine will be a direct drop in for the Traxxas 2.5 and 3.3 Revo or the Slayer Pro, but requires the OS 23818430 Ball Link. The .21 TM will adapt directly to the…
K53 is a pre-broken in engine. When you take out the engine from the box, you only need to run 2-4 tanks (250cc-500cc) with 30%-80% throttle power first then run full speed after these process at track. Your engine now is ready for racing. Enjoy your fun time.
With our new…
Dynamite Mach 2 .19 Replacement Engine for Traxxas Vehicles
Features
Direct drop in replacement for all Traxxas® nitro vehicles that utilize the Traxxas EZ-Start® starting system with no modifications needed
2-needle slide valve carburetor for increased linear power delivery
Knife-edge connecting rod for higher rpm’s and less internal turbulence
ABC piston and sleeve for increased…
Key Features
13mm turbo ported crankshaft
2-needle carburetor
ABC 6-port piston and sleeve
Knife edged connecting rod
Pull start/Spin-start combo equipped
Overview
The Dynamite® Mach® 2 "Big Red" .28 monster truck engine was engineered for superior torque and durability allowing you to unleash the full potential of your nitro monster truck. With features borrowed from the popular…