Originally Posted by jPrichard10

I laced up a pair (my first ever!) of 650A wheels back in my poorer days as a budget way to see if I would like 650B, which at that time were $$$ (still are, I'm just a little less broke now). Used the Panaracer Col de la Vie 650A 38s. The Sun rims I bought were a bear to seat tires on (a tad oversize) but I heard that was a batch problem. Even better, it looks like you can get some Araya rims from Merry Sales for not too much scratch. The tires were great; basically just smaller diameter Paselas.

If I had a bike built around 650A (English three speed or the like) I wouldn't hesitate to build up another wheelset like this. If I were concerning a bike and could choose the size, 650B is the better choice.