Originally Posted by
Leebo
I've done 2 conversions, no issues. And used the same teckros. The 700c are maybe 5? mm smaller. Look for a basic bike, the race bikes might have less room for bigger tires. I love giving new life to older bikes. A 126 rear spacing? Just pry it wider, stuff in the 130 hub. It's 2 mm on each side no biggie for a steel frame. Post back with results.
700c are 4mm smaller in radius (the bead seat diameters are 622 and 630 for 700c and 27 inches, respectively).
Agree that you CAN just spread the frame each time you replace the wheel, and if you don't do much maintenance or repair work, it would be fine, but I prefer to adjust the frame to fit the wheel, and to check the alignment. If you just pull em out each time, you may get a good ride. If you properly bend the things you don't have to worry about misaligment and such. My preference - you obviously get what you need without doing this. It is 2mm each side - easily adjusted with a length of 2x4 in, like, 5 minutes.