Stupid question, probably. Attached is a picture of my bike. Late 80's Rock Hopper. Its got PLENTY of clearance for bigger wheels. I'm thinking about getting a pair of 700C wheels/tires and try it out. I know that brakes will be the only problem. Is it possible to space the brakes upward, or do something else? I am willing to experiment a bit.
Has anyone ever done this? Would I need to go to a frame builder and have the frame modified for new brakes?
EDIT: After look at the bike I realize that the front brake might be *really* easy to work with, but the rear will not be, for sure. Is it unreasonable to run only a front brake? I'd be willing to run a coaster brake geared hub in the back.