i think it's the second coming of the VumaChrono, and i like it!
....and we know what happened to the first coming!
I quite like them, but as they're TT specific I'm not quite sure how the limited chainring options will work out. We have customers going well over 55 tooth and under 53 tooth. If they're a fairly straight forward swap for aftermarket rings then there won't be a problem, but the lack of chainring fitment options was one of the Vuma Chronos failings, in my humble opinion (that and the price of course)