[greglepore]

Originally Posted by David

I can only find 17mm inner width on the Zipp website. Where have you seen 21mm?

I haven’t seen 21mm inner width on any rim brake wheels except the Bontrager wheels so I’d sure like to hear about any others.

No, the a33's and the equivalent Boyd's (altamonts ?) are 33 mm deep by 21 mm wide. Not carbon, but perform like the zipps in testing.