Originally Posted by
masi61
I’m also a bit curious what your opinion of the build quality on these Tiagra 4720 or GRX ST-RX400’s would be compared with their 11 speed brethren. I don’t want cheap plasticky bits that are not going to hold up.
I haven't had my hands on either shifter, so I can speak as to their quality. I suspect that the GRX 400 shifters are the same as the 4720 with a different hood cover and lever shape. The biggest advertised benefit of the GRX shifters was the higher brake lever pivot, but that only made it to the top level shifters. The brake lever pivot remained in the old location on the other GRX shifters.