ebay kit

[derf]

dear all, having ordered a bafang bpm2 from BMS I looked around for interests sake..are these http://www.ebay.co.uk/itm/36V-500W-E-Bike-Electric-Bicycle-Rear-Wheel-Motor-Conversion-Kit-DIY-Cycling-/170939511356?pt=UK_Bikes_GL&hash=item27ccc9f23c
any good? bafang? bad and (without wanting to lean more on your collective knowledge than I do), why? many thanks, I was just wondering (BMS shipping is a bit of a killer)

 

[Deleted member 4366]

Those motors are very heavy. They're suitable for constant speed cycling. If you do stop-start riding or have hills, they're not as good as a geared motor. With that much weight at the back, you have to mount the battery forward of the seat-post somewhere. The supplied free-wheel's gearing is too low, so you need to think about adding £25 for a DNP one, although that applies to most rear hub-motors. One big drawback is the pedal sensor system. You get one level - maximum, which is pretty useless.

 

[derf]

Those motors are very heavy. They're suitable for constant speed cycling. If you do stop-start riding or have hills, they're not as good as a geared motor. With that much weight at the back, you have to mount the battery forward of the seat-post somewhere. The supplied free-wheel's gearing is too low, so you need to think about adding £25 for a DNP one, although that applies to most rear hub-motors. One big drawback is the pedal sensor system. You get one level - maximum, which is pretty useless.

many thanks for the useful info, should have realised from shape its ungeared, will hopefully discover much more when I build bpm