O.S. Speed B21 Adam Drake 2 Off-Road

O.S. Speed B21 Adam Drake 2 Off-Road

Japanissa tehty nitromoottori, parasta mahdollista laatua!

399,00 €

O.S. Speed B21 Adam Drake 2 Off-Road

O.S.SPEED B21 ADAM DRAKE EDITION 2 is an evolution of the previous Adam Drake model that was born with the advice of world-class pro-racer Adam Drake from USA.


The Bore/Stroke ratio of the Drake-spec engines is 16.4×16.55mm and are unique to this engine (and it’s processor). Newly designed crankshaft for further improved driving feeling (different tungsten balancing). New updated combustion chamber that use an additional O-ring which reduce vibration and seals out most of the dirt that can accumulate around the sleevsd upper/outer edge. The new carburetor also has its locking screw turned around 90 degrees so its much easier to reach/tighten. Two carburetor venturi inserts are included: 6.5 & 7.0 mm Also available as a combo set including an exhaust system


Stroke volume: 3.49 cc Bore: 16.4 mm Stroke: 16.55 mm Output: 2.61 hp @ 34.000RPM Practical RPM Range: 4.000 – 42.000 Weight: 353 g

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