Anyone ever installed 650B wheels on a bike designed fot 27"? I'm looking at a tandem which is very attractive except that the standover height is 1/2" to 1" too high with 27" wheels. 700C wheels will only lower it 4mm, so I'm considering 650B. That shold lower it nearly an inch, but will the rims then be too low for the brake pads? (It has MAFAC cantilevers). Anyone ever done this?
Regards,
Jerry Moos
Houston, TX