Current Projects chat and miscellany

bps-dfp, beautiful bike! Just out of curiosity, which BB did you use to get a correct chainline (assuming 42 mm) with the 49d's? I have been experimenting with my 49d's and found the longest ISO BB (115,5 mm Campag triple) not long enough to prevent the crankset spider from hitting the BB cup.

That's my bike; thanks for the nice comments.

I had a similar problem. I'm using an old TA 344 115mm axle with old TDC cups. That gives a reasonable chainline for a fixed hub, and means that the crankset spider or the chainring bolts don't rub against the BB cup. Because the crank has to be as close to the BB as possible, I found that I needed to get a fixed cup that was small enough to spin inside the circle of the bolts, if you get what I mean. A Campagnolo cup was slightly too big - the bolts caught against its outer edge as the crank spun and so meant it didn't turn properly.

I think really you need old TA or Stronglight cups.