I want a mid-drive as well, ... However I will be going up much steeper grades and want to to higher altitude gains,
For the ride you are describing even a small simple hub motor will work just fine . ... viewtopic.php?f=3&t=93180
There are other hub motors sold by many vendors, for your ride any rear hub motor that is between 6-10 pounds will work just fine.
For instance my Mac motor that is a fast wind ( 6t ) does your kind of ride well. it weighs 9.5 pounds, the cassette version weighs a small amount more but a cassette weighs less than a freewheel so it evens out.
But for even lighter weight a motor that is in the Q128 weight range will work for you. 750 watts is all you need for that ride. the Experts in DIY e-bikes say that 80 % of people are better off with a hub motor.
But if you are stuck on getting a Befang mid drive, the BBS02 is all and even more than you need for the ride you describe .
trex-bike wrote: ↑
May 17, 2018 11:08 pm
I've had a of Soma DC Doublecross Disc bike for about 6 years. Its a great but I need a little help on the hills these days.
Im trying to decide between a Bafang BBS02 and a BBSHD motor and would appreciate any advice on this.
For my commuting I ride 14 miles RT and I probably have around 300-400 ft of elevation gain with a grade of maybe 3-4%. I'm 61 years old and weigh 195 pounds.
I am thinking the the BBSHD might be better a) at stop and go initial acceleration b) keeping up with downtown traffic at 25mph and c) more robust. But my concerns are a) is that it might be too much of a good thing and b) it is heavier c) extra torque would somehow be damaging to my bike. My bike frame is made with Tange Prestige heat-treated CrMo steel.
Thats pretty much it and I appreciate your help.