Lots of good info here but what about the model type? I've been trying to decipher
the models listed on Bafang's site: http://www.szbaf.com/en/product.asp
L2 = drop out / frame width / hub width
SWXB - 146
SWXB3 - 162
QSWXB - 100
SWXH - 136 - Disc brake and up to 8 cog freewheel (sunrace)
QSWXK - 100
Q designate front hubs and S designate rear hubs. L2 looks to be the drop out frame or hub width.
I know people on the forum have used different models. I have a standard North American
Rocky Mountain Mountain bike with 135mm dropout in the rear.
The SWXH fit perfect on my bike with a new 8 cog freewheel (Sunrace). I don't know why it
says only for a 6 cog. Currently running with baby 36V 20amp Infineon controller, and two
Canadian Tire 20V Lithium Yardworks batteries in series = 40V. Its not torquey enough on
the big hills around here, so I might try 3 Yardworks batteries in series = 60V (edit: this worked).
that the controller is good up to 60V, but I tested a battery and it's 21V, so I don't know if
63V will burn out the controller or not... (edit: not yet anyway. Time will tell)
Maybe we could list what models worked for what kind of bike here?
SWXH Info Stamped on Motor
Voltage: 36VDC (clear sticker)
Output: 250W (same clear sticker)
26 (green sticker)
ZL20003 2 0123400.9
Permanent Magnet brushless high speed hub motors used for electric bicycle
Then, one motor had
and the other had