Originally Posted by MKRG
I wouldn't bother with 27's just build up 700's. The brake will probably reach.
This was my thinking in converting 27s to 700s. The brakes reached, until the pads had worn down about half-way. Then the pads were rubbing on the tires themselves. Pop! Hiss! New Tire! New Pads! Make sure this won't happen if you decide to go with 700s.