23 or 25mm width rim?
Getting ready to buy 50mm carbon wheelset from Onlycarbonwheel on Ebay. Trying to decide between 23mm or 25mm width. My concern is tire clearance on the frame. My current rims (Shimano RS-11) are 20.5mm and with 28mm GP4000 tires there is barely enough clearance. If I downsized to 25mm GP4000 tires...