Castle Creations motor and ESC combo recommendations for the Tekno MT410 2.0:

Copperhead 10 w/1412-3200kv - 14T Pinion / 41T Spur on 2s = ~40MPH
Mamba X w/1412-3200kv - 12T Pinion / 41T Spur on 3s = ~50MPH
Mamba X w/1415-2400kv - 13T Pinion / 41T Spur on 4s = ~55MPH

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.