O.S.ENGINE O.S. Speed B21 Adam Drake 4 Off-Road XB8'25 New CVD driveshafts simplify adjustment

New CVD driveshafts simplify adjustment & improve reliability

Aluminum 2nd speed shaft stand allows for attachment of the carbon plate for the middle belt tensioner

Graphite Chassis Brace Upper Deck 2

The T10XCR is designed specifically for competition and will bring a new level of speed and stability to your riding from the moment you pick it up

O.S.ENGINE O.S. Speed B21 Adam Drake 4 Off-Road XB8'25 New CVD driveshafts simplify adjustmentO. S. SPEED B21 ADAM DRAKE 4 3. 5cc Off Road Buggy Racing Engine O. S. Engines would like to introduce new O. S. SPEED B21 ADAM DRAKE 4. The latest collaboration engine with world famous O. S. Team driver Adam Drake. The cylinder liner, crankshaft & cooling head has been redesigned to Adam Drakes spec for better balance, more torque and more power for better driving performance. Main changes (compared to AD3): Cylinder liner: Revised port design for