Trax TR.1 Bottom Bracket Size?

[James Rayner]

I have a Trax TR.1 - please let me know the bottom bracket size for a mid motor


Thinking of getting this - but need to know the BB size, please:


EU Tax Free!! BBS01 36V 250W Bafang Mid Drive Kit 68mm BB Width Electric Bicycle

Please see attached

It’s hard to tell exactly how long it is and where to measure it from


Many thanks!


James Rayner

 

[peter.c]

It is hard to measure without removing the chain wheels and bottom bracket
bbs01 is 68mm -70mm according to most sellers I have had a problem with one installation but that was easily overcome good luck with your build

 

[Woosh]

I have a Trax TR.1 - please let me know the bottom bracket size for a mid motor


Thinking of getting this - but need to know the BB size, please:


EU Tax Free!! BBS01 36V 250W Bafang Mid Drive Kit 68mm BB Width Electric Bicycle

Please see attached

It’s hard to tell exactly how long it is and where to measure it from


Many thanks!


James Rayner

you measure the shell width, from your picture, it looks like 73mm.

 

[James Rayner]

Many thanks

They said I could just buy the 73mm one and it’s compatible with both

Thanks

Hopefully my install goes OK

Thanks again!!

James

 

[peter.c]

If you get stuck there will always be someone on here who will know how to help enjoy the build and post pictures