Press fit bb and mid drive onversion

[Bjl]

I have a nice Cube gravel bike that I've put flat bars on, it would make a great donor bike for a mid drive conversion. The only problem I'm not sure about is that it has a press fit bb . Works it be possible to put a bsa threaded insert into the bb to accomadate a bafang or tongsheng motor . Cables under bb may possibly need rerouting too .q

 

[Bikes4two]

I've no idea as to the sizing of the bottom bracket system that you have, but if there's room for a BSA type insert then Ceeway ( https://www.ceeway.com/ ) might well have something for you.

Years ago the BB on my carbon frame Trek Madone gave up the ghost and no dealer would consider a repair. I got a steel insert from Ceeway and with some monor tinkering and a fair bit of industrial grade epoxy, the BB insert was fitted - that was some 10 years ago and a few thousand miles on and there's never been a problem.

 

[Peter.Bridge]

BBS02 PressFit 30 PF30

Hi, I’ve purchased a boardman 29er Pro 2016 to convert to an e-bike. I thought the only thing I had to worry about was bottom bracket size (which I measured before purchasing) but clearly I was wrong! The frame uses PF30 BB so I’ll need an adapter to convert it to BSA. From what I’ve read...

www.pedelecs.co.uk

 

[saneagle]

You'll have to fabricate something to stop the motor rotating around the BB when you have a PF BB or adapters. The TSDZ02 has such a bracket that fits some bikes, but not others. It looks like it won't fit yours, but your photo isn't sufficient to be sure.

 

[Raboa]

I dont know if any of these adapters will work.
Bafang spares and replacement parts for BBS01B, BBS02B and BBSHD parts. (brightonebikes.co.uk)

 

[Bikes4two]

Another source of steel BB shells - (link)