- The crankcase, on which OS SPEED logo is engraved, has enough surface area for effective heat dissipation.
- Type S 3– ports liner performs well at medium and low speed range
- Type S has high vertical finned low-profile cooling head for improving the car drivability with low gravity
In The Box
- (1) O.S. Speed B2103 Type S Competition 1/8 Buggy Engine
O.S. SPEED B2103 TYPE S is a factory tuned engine for 1/8 off-road competition, most parts of which are newly designed; carburetor, crankcase, piston/liner, crankshaft, and inner head. The cooling head is low-profile type, which has low-gravity center with high vertical fins, which contributes to efficient heat dissipation. To say nothing of improvement over its power performance, the inner head with silicon o-ring improves anti-vibration and dustproof performance. The new ball link of carburetor makes linkage adjustment easier.
|Bore||0.64 in (16.27 mm)|
|Cylinder Type||Type R 5-port|
|Displacement||0.213 cu in (3.49 cc)|
|Engine (Only) Weight||12.42 oz (352 g)|
|Muffler Type||Tuned Muffler|
|RPM Range||4,000 - 42,000|
|Stroke||0.66 in (16.80 mm)|