I made a front wheel drive ebike using a 500 watt DC brushed motor, I'm also using gears! 6 speeds on the front of the bike I'm not sure if anyone has tried the gear thing yet but the idea popped into my head so I had to try it out. I converted a scarp bike into a FWD ebike the only new parts were 500 watt DC brushed motor, 24v 500 watt controller also two 10 Ah batteries rough cost about 112$ USD. So why even do this when you can just use a BLDC hub motor? so here's why, the main reason was cost hub motors are way more expensive where I live but prices are all over the place and I only buy DC motors if the price is decent also I like chain drive. In some places you can buy hub motors new and used pretty cheap also lithium batteries so go with a hub motor than. I do not recommend building this, if the chain comes off and goes into the front wheel you know what will happen, you may become supper man and fly over the handle bars, but your landing wont be so graceful.. If you want to try this out please read, first off the lowest gear on the cassette on my wheel is to small for this motor it will only assist you up a hill with that said it might be just my week controller or battery combo but I have feel even with stronger controller and batteries it wouldn't make a huge difference. I suggest not using the gears, the motor comes with a 25H pinion it would work better to use a larger 25H sprocket like 80t on the wheel and just one single freewheel bearing for the sprocket. It might not go as fast but would be way better I prefer torque over top end speed.
Motor and controller and batteries were sourced from Amazon sorry I don't have links right now.
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