Zwift Ride seat tube position marker

My better half and I share the same Zwift Ride indoor bike. I am significantly taller than she is, meaning that we need to constantly readjust the frame when we want to use it.

In order to make it faster (for her) I designed this clamp that allows “bookmarking” her saddle height. When it's her turn to ride, she just loosens the frame clamp and slides the seat tube down until this device meets the frame.

Can be printed without supports, with the pusher flat against the build plate. Some gentle tree supports can help for the nut hole.

Requires an M3x12 bolt (or longer) and an M3 nut. Slide in the two halves, with the pusher already in the back section, find the position, gently tighten the M3 screw