OSM1EK00
OS Engines Speed B2105 .21 Nitro Buggy Engine
$549.99
In stock
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, we have achieved smooth and linear power delivery. Furthermore, the effect of a lighter outer head successfully improves drivability in any situation.
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Features
- Newly designed cylinder and liner for better performance
- The carburettor is based on the 22E with an improved idle adjustment valve providing a more stable fuel supply
- The thrust plate with surface treatment embedded in the cover plate reduces friction against a connecting rod to extend its life
- Inherited from the well-established B2104 crankcase, the bearing uses a proven ceramic bearing
- Outer head weight has reduced
- Modified crankshaft has undergone O.S.SPEED's traditional DLC coating and the internal shape has been revised to improve not only power characteristics but it's easier to use than B2104
Reviews
Specs
- Displacement:
- 3.49 cc / 0.213cu.in.
- Bore:
- 16.27mm / 0.641 in.
- Stroke:
- 16.80mm / 0.661 in.
- Output:
- 2.68 ps / 2.64 hp / 34,000 r.p.m.
- Practical rpm range:
- 4,000-42,000 r.p.m.
- Engine Weight:
- 348g / 12.28 oz.
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