Old 09-08-09, 12:26 PM
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700cc will fit on a 27" frame as long as you have the 700c wheels and 4mm left to move the brake pads down to match the smaller rim. Many do have this capability, some don't.

That said, what's the rear dropout width? Many older bikes aren't the 130mm that the newer 700c wheels are. As you can see, it has the potential to be a can of worms...
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