It seems I have an issue of chainstay clearance with the frame I'm using, a Rivendell Bombadil mtb . If anyone has a Carmina triple and can measure the inside width of the cranks, I'd appreciate it. A simple way is to measure the inside of the arms to the seat tube, then measure the seat tube . . add all three.

The length of BB and Brand, as well as which version of the Carmina(polished or blasted inner face) is also needed.

Not many Carmina users . . . but what they hey.