Electric Bike Conversion Kit: Front Hub Motor

The front Electrical Bicycle Motor is by far the easiest kit design to install with the fewest potential compatibility issues with the receiving bike.

There are several considerations when installing the front hub e-bike kit:

– Is there enough space between the forks to place it? If it's narrower than the fork opening, you can usually use packing washers to make it fit. If the motor is wider than the fork tines it may not fit at all, if it is, you are looking for a fork to spread out, it may work fine but it may void any warranty on the fork, it may be dangerous if done incorrectly or done with the wrong fork Too much design; in other words, it's a "last resort" solution that requires vigilance. If the slotted fork drop itself is narrow, you may need to file it - but we're only talking about a small amount here, and you may be weakening the fork.

The design of the fork is also important. They should be contoured to allow the motor to spin freely in the hub with some clearance.

– The fork dropout should be wide enough to allow the shoulder to slide in without any appreciable sideways movement, and there should be enough depth in the dropout for the important non-return (anti-torque) washer to fit snugly in it.

– Is there room for the battery to be installed where it should be?

Electric Bike Conversion Kit: Rear Hub Motor

– If installing a rear hub motor, is there enough space between the trip units? For single speeds, the chain line also can't stray too far from the line, and the derailleur gear also needs a compatible sprocket on the motor.

- Also consider if the rear hub motor will give you the gear you need. You may need to replace the hub gears for the derailleur system. Does the rear hub allow freewheeling or freewheeling (cassette) gearing? If so, it's important to know which one allows for a smaller range of gears, while the latter accommodates a more modern wide-range rear derailleur gear system.