Originally Posted by
Dan Burkhart
From the specs, Rear Hub- Forged alloy, double-sealed, cassette, QR, 32h Most likely not Shimano. (If it was, it would say so.)You're right,most Shimano freehubs are removed with a 10mm hex, but some require a 14mm. Never seen one that takes an 11mm. Probably made for Specialized by Formula or some such company.
Finding a replacement freehub body may be a problem. If the bike is fairly new, I'd try warranty.
11mm is VERY COMMON for generic freehubs on generic loose ball hubs Dan. Typically you loosen the nut on the non-drive side - leave it sitting in the hub shell. Then loosen and remove the freehub itself.
The 11mm allen is clamped into a vise long side up...
Typically the generics in question have the following profile/layout/dimensions:
http://www.mrrabbit.net/images/a5012.jpg
=8-)