I am a little bit surprised that, if they are copying the Shimano Dura ace freewheel, their new 7-speed freewheels don't support 12-24 ratios. It seems like a freewheel with a racing gear range - ending in a top-end of 24T, should start at 12T, or even 11T if possible.
I have a 12-21 Dura Ace freewheel, and was considering one of these new ones to get a slightly wider ratio, when I noticed this issue.
- Don Gillies
San Diego, CA, USA