Product Details
In The Box
- (1) O.S. Speed B21 Adam Drake II Engine
Product Specifications
- Manufacturer #: 1CH00
- Bore: 16.4mm / 0.646 in.
- Cylinders: Single
- Displacement: 3.49cc / 0.213 cu.in.
- Engine (Only) Weight: 353g / 12.45oz
- Power Type: Glow
- RPM Range: 4,000 – 42,000
- Stroke: 16.55 mm / 0.652 in. output














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