Originally Posted by mrrabbit

Shimano Dura Ace Front 7900 is listed as hole-to-hole 48.4mm

It's actually 38.4mm


Shimano XT Disc Front M758 is listed as hole-to-hole 68.6mm/64.6mm

It's actually 58.6mm/54.6mm


The Dura Front error came to light as a result of a gentlement here who built one up as part of an upgrade for his two bike - one being a really nice black and white Schwinn.

=8-)

You should be able to swap in any Shimano Disc front that has the same hole-to-hole flange diameters. (FH-M525 for example.)

=8-)