Castle Creations motor and ESC combo recommendations for the CEN Racing Reeper.

Monster X 8s w/1520-1650kv* - Stock gearing (12/66) on 6s = ~50MPH
Monster X 8s w/1717-1650kv* - 11T pinion / 66T spur on 8s = ~60MPH

*May require slight modifications to allow longer motor to fit.

Notes:
All speed estimates are with stock tire diameter, high quality batteries and appropriately sized battery connectors.
Always monitor ESC, motor and battery temperatures on new setups or when changing gearing or batteries.