The 500 watt direct drive electric bike kit offers a powerful, quiet motor that’s a bit heavier but good for cruising and scootering around. The kit I reviewed comes with a Sealed Lead Acid pack but they also offer Lithium-ion. You can choose the wheel size and the motor comes spoked so all you have to do is swap it with the one on your bike. The LCD display unit is nice offering speed, distance and power level indicators.