Certainly looks good , did you view the Macina 29 vid that showed up at the end of this one. Both the
Grace and the KTM had the NuVinci gears and combined with the Bosch drive ....wow
I had a Dahon (e-bay atm.) MU-n360 with the same rear hub its eerily quiet BUT perfect in an e-bike app.
Certainly expensive but hopefully economies of scale take over and they get a bit cheaper , i take other
folks opinions on a well adjusted Cassette but really doubters should try one . Is the Grace one of your
candidates for replacing one of your current stock Eddie?