You're not (just) going to put the wheels and chainset of your PX on there?
Neither fits, the Raltech covers hit the inside of the chainstay and the Vigorellis hit the outside
I use a FFWD disc on my Plasma which is geared but it's a very narrow wheel and has to be as the chain stays are very tight. Clearance is minimal with a 22mm tub.
@BeaconJon started
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Neither fits, the Raltech covers hit the inside of the chainstay and the Vigorellis hit the outside