motor138This is E&C's Favorite Motor! It can be found in both the EMX14 and EMX17 Kits. This motor is perfect for medium size electric motorcycles. The QS138 70H is well known around the worldMOTOR138 QS PMSM 4KW 90H V3 Mid Drive Motor With Internal Gearbox With 12.35 Reduction Ratio Inside, with 6500-7000rpm.. Application: e.g. Dirt bike. E-motorcycle