Castle Creations motor and ESC combo recommendations for the Tekno MT410:

Monster 2 w/1515-2200kv - 14T Pinion / 40T Spur on 3s = ~42MPH
Monster X w/1515-2200kv - 14T Pinion / 40T Spur on 4s = ~56MPH
Monster X 8s w/1520-1650kv - 14T Pinion/40T Spur on 6s = ~63MPH

Note: 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.