Bafang G310

Bafang G310 Problem 

2:02:25

"We found that the G310 motors, as much as we love them have been one of our highest percentage motor failures of our base that we had to deal with. We've had issues with the magnets coming lose. [inaudible], we've had issues with gears failures. That's obvious by suppling them with more power than they can take. Rolling back the phase limits in the motor controller in any of those systems."
Justin, https://www.youtube.com/watch?v=c96n0Ma2rLY

Grin Technologies interesting videos

Justin says he's in the hub motor camp.

Surly as frame for DIY project

 "Tongsheng TSDZ2 will fit any standard threaded  bottom bracket which is 68mm-73mm wide, with an inside diameter of approximately 33.5mm." - https://ebikechoices.com/tongsheng-tsdz2-review/



https://surlybikes.com/bikes/bridge_club

Bridge Club
Bottom Bracket: 73mm threaded (1.37" x 24TPI)



Two build kit options: Pavement (700c) and Off-Road (27.5)
Run racks and panniers, framebags, or all of the above
Disc brake-specific, single position vertical rear dropout makes it less intimidating than other bikes in the category
Clearance for 700 x 47mm tires (with or without fenders), 27.5 x 2.8” tires (27.5 x 2.6” with fenders), and 26 x 3” tires (26 x 2.8” with fenders)

"Bridge Club. Decided to go with the Fatty 27.5 wheels. Love it but I’m a Surly Fanboy.."- 

Tobi We

Regenerative charging

Regenerative braking

Found this on the net:

"Been doing some research on the controller and you can unlock some features like cruse and 3 speed switch if you connect the right pads.
A2 goes to 5v when ebrake engaged
K1 3speed switch (green)
K2 3speed switch (blue )
Q  cruise
X + DS Regen braking
6/12 motor learning
ZL PAS sensor~
XS throttle restrictor
SL Ebrake active low
SH Ebrake active high"

How to rework rear sprockets for mid drive systems

Gear clamps to move the bigger rear sprocket for straighter chainline

https://electricbike.com/forum/forum/knowledge-base/motors-and-kits/bbshd/39170-how-to-rework-rear-sprockets-for-mid-drive-systems


Check out this nice video: How to rework rear sprockets for mid drive systems...


Nice tire: Surly Extra Terrestrial 26x2.5




Gearclamp used in this video http://www.gearclamp.com/


The cassette is a SunRace CSM98 bought on ebay