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Reduced price! O.S. Speed B2102 .21 Low Profile Off-Road Nitro Engine

O.S. Speed B2102 .21 Low Profile Off-Road Nitro Engine


New product

Immediately available

€ 359,00

-€ 90,00

€ 449,00

O.S. Speed B2102 .21 Low Profile Off-Road Nitro Engine 

This is the O.S. Speed B2102 .21 Off-Road Nitro Engine. The innovative B2102 engine comes equipped with a low profile head which provides great influence to the running performance. The low-profile cooling head (-17mm) makes the vehicles center-of-gravity much lower, which improves car handling drastically without sacrificing cooling performance. 
The B2102 also comes equipped with the O.S. 22C (B) carburetor for improved fuel mileage to go the distance; ten-minute runs on a single tank are no longer a privilege of top drivers with magic fingers.



    • Low cylinder head reduces the buggy's center of gravity by 0.67"
    • (17mm) for better stability during aggressive driving
    • Redesigned 22C slide valve carburetor for better fuel economy
    • Tungsten weighted crankshaft with diamond-like coating and silicon potting
    • Bypass of crankcase is modified for better performance


Displacement: 3.49 cc
Bore: 16.40 mm
Stroke: 16.40 mm
RPM range: 4,000-42,000
Power: 2.61 hp @ 34,000 rpm
Weight: 347g


O.S. Engines Speed B2102 Engine with P3 Turbo Glow Plug
6.5mm Carburetor Reducer
Exhaust Seal Ring
One each 3mm, 16mm and 18mm Dust Caps
Instruction Manual


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