I have some new asymmetric rims and are having a real issue getting tyres on and off. I did one the other day, which was pretty easy but now can’t remember exactly which side I mounted first, and really struggling to get it see seated.

Any ideas?

As your looking at it the bottom

When a rim is described as “asymmetric” I thought it was the position of the spoke holes in relation to the sides of the rim, not that one side of the rim hook/interface is different to the other? Surely?

When a rim is described as “asymmetric” I thought it was the position of the spoke holes in relation to the sides of the rim, not that one side of the rim hook/interface is different to the other? Surely?

Ah ok, but on these the hook and interface is asymmetric. There’s a deep groove on the bottom side in that pic, and the hooks are a different shape.