Ive done this to a ti29er and a pompetamine slotted drop out and also the scandal vert dropout but with a tensioner, so Im going to assume that the trackend and rear caliper mount inside the rear triangle is similar becuase I cant find any pics of the swap out on a pig.
Ive used two methods.
first I modified a speedbone so that the torque peg transfer hub torque to the inside of the drop out traingle:
It picks up an OEM 2 plate from the hub.
That speedbone has recently been adapted further with an additional mounting hole so that I can use it in a similar way in a pompetamine which has a different dimension to the calliper mount/dropout
Ive also machined my own monkeybone from a spare caliper adaptor to use on the scandal – youd need a tensioner, or to adapt the monkeybone so that you could slide it back and forth with the axle
the platepeg needs longer drop outs unless the axle is right at the front of the slot. you also risk opening the slot if it’s not all the way in. The OEM slot dropout on OEM frames is quite long. It also limits the clickbox orientation to one position.
You need to be a bit careful running a OEM1 axle plate in a horizontal dropout – I’ve seen several frames where the dropout has splayed open under the torque which it isn’t designed for.
I occasionally reinforce track dropouts to suit by brazing a strip along the underside.