I have an old Specialized Rockhopper Comp I want to upgrade. The bike needs new wheels. Seeing as it has 130mm spacing, can I build some new wheels with Ultegra hubs to make it a 9 speed? I really don't want to respace the frame. Lots of cyclocross racers use Ultegra hubs, so they must be durable. Anyone ever try this?

Cross posted in the Vintage Classic forum.

Tim