Key Features
- Same mounting dimensions as a .90 cu in engine
- Machined blue anodized aluminum heatsink cylinder head
- Velocity stack increases airflow and enhances engine performance
- Backplate accepts the Futaba BPS-1 RPM sensor for the GY701 and CGY750 gyros
- Ideal bore and stroke ratio for lowest vibration

OS Engines FS-120 III Surpass Ringed 1.20 4-Stroke with Pump for Engines 




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