Join Date: Feb 2009
Location: Austin, TX
Bikes: Giant XTC Team Custom XC bike, Nashbar tourer custom commuter
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
As far as I know, there's two sizes of standard disc brake mounts, 51mm (International Standard) and 74mm. While you want the one that fits your brakes, but most brake manufacturers offer adapters for both if you find a for you just have to have with the wrong mount.
So long as it has a disc mount, it will probably be one of those.