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I purchased this kit from the poweride store several months ago. I upgraded it to 48V, which I consider essential, and would still like more torque, though the speed is adequate. I mounted this kit into an old 10-speed mountain bike. The 408 winding allows me to speed along at pretty near my out and out top speed on an old ten-speed bike. The 4011 winding is much slower, and it doesn't seem to have much more torque. Were I to do it again I might just get a single speed 409 motor.
Lessons learned, get all the battery you want to carry, at the highest feasible voltage. Coming from an engineer, remember that voltage is usually cheaper than current, i.e. it's cheaper (and lighter) to use a 409 motor at 72V and 20A than a 504 motor at 48V and 40A, for similar performance. You can do the math, but I already did and that's the message.
Also, be sure to have a VERY sturdy rack for the batteries or they will sway and impact the handling of your bike. I affixed mine securely together with lots of Saran Wrap and mounted them into the center of the frame and it handles MUCH better than on the rear rack.
Further, know that electric bicycles are an emerging technology and expect that everything required will NOT come in a kit. 99% of it is there but you may need extra wiring components, zip-ties and you will have to do some modifications to make the kit integrate nicely with your bike. On the subject of this merchant, one item was omitted from the order, the battery bag, but the store quickly made good on it. Overall I am very satisfied with my purchase.
Next up, a 409 motor to be mounted in a fully suspended large-frame mountain bike with 72V of NiMH batteries, disc brakes, a 30A controller and a small homebuilt generator powered by a 22CC 4-stroke string trimmer engine
Rating:  [5 of 5 Stars!] |
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