Originally Posted by lapin_marron
1/ on
http://www.formulahubs.com/
look at the tracks hub > the ref are TH20, TH21, TH22 and TH51 they talk about O.L.D. 100mm and the others ref TH51, TH52 are 120mm O.L.D. so?
2/ you was talking about Dura Ace >>
http://bike.shimano.com/media/techdo...9830611823.pdf but i don't see any spacers to remove for convert a 120mm OLD in 110mm
3/ i'know it can be done with BMX hub on a modern track frame, i've ever done it
but this time this is for an old frame so, as you say, i'll control first the measure of the width of my dropouts
it's for a "mulet" (mule - 2nd hardcore-bike) so i have no problems of aesthetic..

1. The TH20 and TH50 are front hubs. While the TH21 and TH22 are listed as 100mm OLD, I would bet that it's a typo. I can't imagine why a manufacturer of budget track hubs would bother making some 100mm rear hubs.
2. The DA hubs you are referring to are 7710s, the ones that are available in 110mm are the 7600s. You can buy them from keirinculture.com and other places.