Not that interested in belt drives for the sake of having a belt drive but one of my dream commuters (aluboo commuter) has a belt drive and the break is at the bolt on drop outs.

I have seen most of the new ones similar to this, though this isn't an aluboo.



which really isn't that new of a technology. I have a '59 magneet that unbolts at the end of the rear triangle, it has been around for many miles before I found it and everything still holds together.