I am thinking of buying a Metropolis Patterson drive for one of my bikes. It is a two speed internal system for the front crank. My husband has one and it is sweet.

Anyway, it doesn't come with a shifter. The maker recommends against friction shifting. I have hunted but I can't seem to find a two speed, or "hi, low" shifter that is indexed for the front. My husband's is a Sunrace and clicks high and low and works great. I can't seem to locate the same shifter or even one like it.

Ideas?