Hey everyone - here’s an update on a prototype I’ve been testing for about half a year: an adaptor to fit microspline (Q-Axle compatible) cranks such as the KH Boundary crank to the most recent model ISIS KH/Schlumpf hub. Florian Schlumpf produced the prototype. It is deceptively simple and ingenious: a shim that is ISIS on the inside and microspline on the outside, with a different axle end bolt and shifter button.
The rod-shaped shifter button looks like it would be harder to shift, but I’ve found it shifts well. Unlike the mushroom-shaped shifter button, the rod is supported inside the axle bolt all the way to the bolt face, which eliminates flex and seems to make the button feel more solid.
This is a prototype and needs a minimum volume to produce. Two questions:
- Would you be interested?
- Besides the KH/Schlumpf hub, do you think there might be interest in this for any ISIS hub (geared or not)?
-Kris
