Rocker Mounts for Wahoo KICKR Shift Bike

prusaprinters

I have seen rockers for bike trainers using tennis balls, but nothing for the Wahoo KICKR Shift Bike.  I really like the bike, but on longer rides, would be nice to have a bit more movement when in the saddle.These replace the rear feet on the Shift and should slide over the tubes without removing the end caps.  I have also added a hole for an M10 bolt if you want to secure them to the tube, when I printed these in ABS it was a nice tight fit that I don't think needs the bolts.I used some tennis balls that I had lying around, I measured them at 63mm, and they press into the pockets and don't drop out.I printed these in ABS with 1.8mm walls and 10% gyroid infill and they seem to hold up well.