OS Speed B21AD Adam Drake Edition Off-Road Nitro Buggy Engine by O.S.
- Designed and tested to Adam Drake's race-winning specifications
- Great for buggies and trucks
- Redesigned cylinder liner with optimized porting
- Redesigned DLC crankshaft with double tungsten counterweight
- Semi-long stroke configuration
- 6.5 and 8.0 mm carburetor reducers
- Ceramic rear bearing
- 21J carburetor
Displacement: 0.213 cu in (3.49cc)
Bore: 0.646" (16.4mm)
Stroke: 0.652" (16.55mm)
Practical RPM: 4,000-42,000 RPM
Output: 2.65PS 34,000 RPM, 2.61HP @ 34,000RPM
Weight: 12.45oz (353g)
This product was added to our catalog on February 16, 2018.