There are several things you need to consider when choosing an e-bike conversion kit. Do you have an aluminum fork? If so, you'll need to go with a rear wheel kit since the drop outs on aluminum forks can fail without warning when you use a hub motor in front. Even with a hub motor mounted on the rear wheel, you should consider attaching torque arms. Most kits are pre-wired so installation's generally not too bad. I installed a Currie conversion kit this summer. This is a rear wheel kit. I had the LBS spin off the freewheel from the existing wheel on my bike and put it on the new Currie, motorized rear wheel. I did everything else myself. Good luck.