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O.S. Speed B21 AD4 Adam Drake 4 Competition .21 Nitro Engine w/2100SC Pipe Broken In by Adam Drake

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Picture of O.S. Speed B21 AD4 Adam Drake 4 Competition .21 Nitro Engine w/2100SC Pipe Broken In by Adam Drake

Picture of O.S. Speed B21 AD4 Adam Drake 4 Competition .21 Nitro Engine w/2100SC Pipe Broken In by Adam Drake

Picture of O.S. Speed B21 AD4 Adam Drake 4 Competition .21 Nitro Engine w/2100SC Pipe Broken In by Adam Drake

Picture of O.S. Speed B21 AD4 Adam Drake 4 Competition .21 Nitro Engine w/2100SC Pipe Broken In by Adam Drake

Picture of O.S. Speed B21 AD4 Adam Drake 4 Competition .21 Nitro Engine w/2100SC Pipe Broken In by Adam Drake

Picture of O.S. Speed B21 AD4 Adam Drake 4 Competition .21 Nitro Engine w/2100SC Pipe Broken In by Adam Drake

Picture of O.S. Speed B21 AD4 Adam Drake 4 Competition .21 Nitro Engine w/2100SC Pipe Broken In by Adam Drake

This product ships from our Edmonton Warehouse.

Availability: Out of stock (ETA: 2+ Weeks)

SKU: OSMG1FH00

Manufacturer: OS Engines

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O.S. Engines would like to introduce new O.S.SPEED B21 ADAM DRAKE 4. Latest collaboration engine with world famous O.S. Team driver Adam Drake. Cylinder liner, crankshaft, outer head has been redesigned to Adam Drake’s spec for better balance, more torque and more power for better driving performance.

SPECIFICATIONS

Displacement： 3.49 cc / 0.213cu.in.
Bore: 16.4mm / 0.646 in.
Stroke: 16.55mm / 0.652 in.
Output :2.65 ps / 2.61 hp / 34,000 RPM
Practical RPM range: 4,000-42,000 RPM
Engine Weight:352g / 12.42 oz.

STANDARD ACCESSORIES

O.S. SPEED P3 glow plug
Reducer 6II (blue) AL2・Reducer 8mm (blue) AL
Exhaust seal ring
Dust cap set 3mm/16mm/18mm

Overview
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O.S. Engines would like to introduce new O.S.SPEED B21 ADAM DRAKE 4. Latest collaboration engine with world famous O.S. Team driver Adam Drake. Cylinder liner, crankshaft, outer head has been redesigned to Adam Drake’s spec for better balance, more torque and more power for better driving performance.

SPECIFICATIONS

Displacement： 3.49 cc / 0.213cu.in.
Bore: 16.4mm / 0.646 in.
Stroke: 16.55mm / 0.652 in.
Output :2.65 ps / 2.61 hp / 34,000 RPM
Practical RPM range: 4,000-42,000 RPM
Engine Weight:352g / 12.42 oz.

STANDARD ACCESSORIES

O.S. SPEED P3 glow plug
Reducer 6II (blue) AL2・Reducer 8mm (blue) AL
Exhaust seal ring
Dust cap set 3mm/16mm/18mm

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