Cyrusher FlexElectric Mountain Bike All-Terrain, All-Purpose E-MTB | 250W 48V 15Ah All-Terrain Electric Bike Torque & Cadence Sensor. Whether it’s trail climbs, gravel paths, or your daily commute, the high-torque250W rear hub motor and48V 15Ah LG battery ensure you’ve got the strength and stamina to go the distance.