Stronglight Track 2000 with Shimano UN54 BB

Thank you guys, all this has been extremely helpful, not to mention very educational for me. Cheers.

I think I'll go for the 110mm just in case and space out the cog.

http://www.jejamescycles.co.uk/shimano-un54-bottom-item139216.html

thanks for the link! :)

re the bb. There was a lot, like 3 or 4mm, of thread showing when it was fitted

can these bbs be lockringed on the extra thread? i'm having nothing but trouble with mine loosening. i tighten the non drive cup, it reaches a point then pops and goes loose. I think this also happens when riding.

I've fit a lockring but i don't know if it's an inherently bad idea.

A lockring will fit but not really do anything, I don't think. Apart from look neater. (Must admit I did that on an old bike when I replaced the cup & cone BB with a cartridge job.)

The best way to fit a BB is with a torque wrench like the Park beam-type one, and just torque it correctly from the start. If it's popping when you force it tighter, I'd be worried that the threads were damaged. You might have over-tightened it.

great stuff, thanks

i tighten the non drive cup, it reaches a point then pops and goes loose.

that sounds like it's threaded.

For some reason with this combination of crank and BB I get 144mm chain line. I'm after 142mm. Can't work out why this is happening, I've measured and measured again. Any ideas?