Out of 20 different E-bike kits tested our system comes out No. 1.

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Some good points made by www.electricbike.com :
Benefits of a mid drive over a hub motor
1. Climbs steep hills MUCH better than a hub motor.  There are videos of mid drives climbing stairs…(a feat nearly impossible to do on a hub motor electric bike).
2. Places the weight of the motor low and centralized in the frame (instead of a heavy hub in the rear wheel) which means a better balanced feel.
3. The motor can use the bikes gears, so the RPMs stay up in it’s efficient range = More range per battery-Ah.
4. Keeping the motor in it’s best RPM range means lower peak-amps drawn from the battery.
5. Giving the motor some gears to use, also means you can get a broader range of performance from a smaller and lighter motor.
6. Easy to change a flat tire with no hub motor.
7. No more broken spokes from hitting a pothole with a heavy hub motor in the wheel.