Adding Hub Motor to Bosch Bike


New Member
I'm wondering if it's worthwhile to add a small hub motor to the rear (or maybe front) wheel on a bosch center drive bike. The reason is that for those particularly steep hills, I would like a little more torque. Also, once in a while, it would be nice to have a button (throttle) that would keep me going when I'm commuting on those not so energetic mornings.

Perhaps a Bionix or HPC "Striker" kit

Likely would only be able to use throttle mode w/ the extra kit on there.

Wondering if anyone has tried this or has any thoughts about it. I know it would likely void my warranty and make the bike less than street legal.
two motors on the same bike? Would you be using two different batteries and two different controllers as well? Probably have to. Sounds pretty complex. And heavy. ;)
I wonder if a Copenhagen wheel would be a good choice. This would reduce the complexity. I already have a phone cradle on the handlebars and I gather that wheel is controlled via the phone anyway so no extra computer needed. This wouldn't get me a throttle but it would likely add extra torque for quicker hill climbs.

Yes, it can make it up steep grades, but it goes kinda slow. I do have the perf motor, it's a 2015 Felt SportE model.

The bike is light to begin with ~40lbs, adding 20 lbs for another motor, controller, & battery would add a bit of weight, but it would give a bit of extra range and add a throttle.

Just curious if anyone has done this