From what I remember the stock Bafang chain ring has about a 5mm offset towards the frame... The BlingRing has I believe a 9mm. So you should be able to know the chainline implications by mounting the bafang stock ring if the motor is fitted to the frame.So I could use one even without chain line issues? I would not want to order one if I can't use it lol. I got the kit from JohnnyNerdout and it will come with eighter 44 or 46t depending on inventory. I am guessing 46 or 48 for the riding I will be doing.
On the bold, this is my plan as well. I believe though, the BBSHD and Ultra being the giant torque monsters they are, are more forgiving when it comes to this sort of thing. FWIWI passed on the shift sensor and really haven't had any issues as I've always micro_paused pedaling before a shift. That said, many use it and seem to be happy.
When stopping and forgetting to shift you can. . .
When off the bike, lean the rear tire off the ground with the kickstand and use walk mode to move the drive train to get back to a lower gear.
If still on the bike I drop to PAS 1 and then use a series of shift and then half rotation of the pedals... repeating until I am in the desired gear. If I need assistance from the start I use modest throttle to get rolling and then the former.
If there is any extra wear on my drivetrain, I haven't noticed it as chains seem to be lasting just as long as before adding the BBSO2B.
My settings in general are tame and I I'm doing as much work as the motor when riding. Occasionally I do get aggressive with the motor just because it's fun to feel like superman on a nice day
For a battery... contact @Jenny Mao as she has a wide variety of battery options and has a good reputation here on EBR.
Jimmy, maybe I'm not following your question properly, but I don't see any way of predicting chain line issues for sure prior to the actual install of the motor.
No need to worry. I beat the crap out of mine. Used by hundreds of pedicabs. Believe me those employees are BRUTAL. Once Bafang beefed up the rotor shaft they’re really quite tough. Many are bullet proof. I road one for two years full throttle in 5th gear never using to other 6. Stop and go. Around 2600 miles. Opened greased and sold with full disclosure.BBSHD