This is the O.S SPEED R2102 Engine with new features and high quality.
- Displacement:3.49cc
- Bore:16.08mm
- Stroke:17.2mm
- Practical r.p.m.Range:4,000-45,000r.p.m.
- Output:2.8ps/33,000r.p.m.(2.76hp/33,000r.p.m.)
- Weight:340g
Features:
- Rear ball bearing is ceramic. It was steel in R2101.
- Cooling head is 3mm lower for low-gravity.
- An extra inner head is included as a standard accessory, which secures more
torque in low-mid range. - You can make a choice of inner head depending on the race track.
Included:
- Standard attached plug T-RP7
- Exhaust seal ring
- Taper collet
- R2102 Inner head








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