Originally Posted by
abdon
Any particular reason? I have done quite a few conversions but I have done quite a few centuries and longer on 27" tires. As a matter of fact I have been meaning to build a "cheater" wheelset with modern cassette hubs/sealed ball bearings on 27", so I can take my vintage bikes out without the yearly overhauling of loose ball bearing hubs.
The 700 size offers a much better tire selection. That's all.