So… First issue with the build encountered – where’s that beer.
Pinnacle Arkose SS (EBB), ultegra 6800 crank, wolth tooth oval 42T chainring and it’s just a bit too close for comfort to the chain stay, it’s clipping the inner tube wrapped round it for protection – any give and it will clip the frame.
I guess I have a few possible solutions going round in my head and wanted to get opinions before doing something calamitous.
1: Move the EBB shell out a few mm – seems simple & doesn’t cost anything, suspect it ‘might’ put undue stress on ‘something’ due to not being centered.
2: I got the 68mm specific ultegra BB, can I drop a spacer or two in the drive side or will it then not connect with the inner plastic tube hing properly and suffer ingress of grot.
3: I’m guessing the right tool for the job is a 73mm BB with spacers, certainly looks like there is enough to play with there on the chain line.