Need a reasonable, sealed BB for 75's

hamster Going to resurrect this topic.
I have the crankset at the bottom of this page, the RD2.
http://www.suginoltd.co.jp/singlespeeder_e.html

They say this gives a chainline of 45mm. I've got Goldtec hubs with an EAI cog, which should give a chainline slightly more than 45mm. However my chainline is out by more than slightly (at least a couple of mm). Who's wrong?
The spindle is 103mm. Am I right in thinking that a new bb with a spindle about 107 (ie the miche mentioned above) should fix the problem?

Cheers for that
Dan

i've got the same combo, miraculously a campy centaur 111mm BB is spot on! NOTE: i didn't plan it this way.

mm, dogs, i have exactly the same set-up too.

actually technically i have the black 75's

oops, sorry mine are silver .....

thanks guys, but my cranks aren't actually the 75s, they're the RD2 (which came stock on the 06 langster). i wonder how much these cranks differ from the 75s, chainline wise. they're JIS taper so campy is out.
after a bit of research i think that the stronglight JD400 (107mm spindle) is the way forward, but can't seem to find any british sources for them. perhaps will can sort me out

cheers
dan

i have the same bike, with a goltec rear.my chainline is out about 2mm, so if it's a 103, if you buy a 107, effectively your are moving the crank chainline 2mm out, so in theory it should be ok, with a 107mm

yeah 107 on a ISO, but as i said above a 111 JIS will also work, if you happen to have one (also mega easy to get on ebay, mine was £17, which is awesome value)

actually, i did also try a 107 shimano BB, but it sat out for a reason. so in reality that one fit better.

NOTE: sometimes the threads on the BB don't extend further enough into the BB or the rear end is a stretched out 116mm to 120mm which throws shit into the works ;) . TIP for the day, brought to you dogsballs mechanics pty ltd

hamster thanks guys, but my cranks aren't actually the 75s, they're the RD2 (which came stock on the 06 langster). i wonder how much these cranks differ from the 75s, chainline wise. they're JIS taper so campy is out.
after a bit of research i think that the stronglight JD400 (107mm spindle) is the way forward, but can't seem to find any british sources for them. perhaps will can sort me out

cheers
dan

Shimano do a few 107mm JIS taper BBs which should sort you out. UN53 is a bit cheaper, but good. UN73 is a bit lighter. By the way, the 110mm Shimano BBs give the same chainline, as the extra 3mm is all on the non-drive side.