My Quickbeam came with a 113 mm shimano BB UN-54 bottom bracket. This was not the first run but I can’t see that it would make a difference. With the Sugino Quickbeam crankset this gave a 48 mm chainline for the large ring ( i.e. the middle ring of an equivalent Sugino XD. ) I always rode in the large ring and never noticed that there was a problem. Only after a few years did I measure. I believe the shimano freewheel gives close to a 43 mm chainline on the Suzue rear hub.
Even if you used a common 107 mm bottom bracket with the Quickbeam crank the large ring would still be outboard of the freewheel. I ended up transferring the 113 mm bottom bracket to another bike ( an atlantis that I am slowly building up as the snow slowly falls and my neighbour incessantly shovels his driveway), and I then used a 108 mm Phil Wood bottom Bracket with a Sugino RD crank, moved over a little which the Phil bottom bracket allows. This gives a better chainline. I think a 103 mm bottom bracket with a Sugino RD would be just about perfect. But once again, I never noticed a problem in the first place, the drivetrain was always nice and quiet. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
