Originally Posted by
cbizkit
Any frame suggestions for the new size range of 650b tires? Thinking 42mm up to 47mm for the WTBs, but I imagine that might be difficult.
The biggest you'll be able to fit will be 42mm, and you'll have to crimp some chainstays for comfortable clearance. Nothing bigger will fit between the fork blades. As far as I know, there aren't any vintage frames that will fit 650 x 47mm tires.