Looking to build up a nice set of tubulars for racing. I'd like to go carbon, but I already have a set of Enve clinchers, and these will see use in only perfect racing conditions. Tacky and fast.

So, I've seen plenty of wheels built up with the BOR/FRM 309T, and was wondering what the actual width of the rims measured. I've seen 24.6 and 26.5 thrown around, and was wanted to find out if someone could clarify.

Thanks!