Pyrkijä Twist bike chain guard

As a Pyrkijä rider I've had a few too many grease marks on my shoes and pants and decided chain guards are needed here, and here are my models for that. 

This first version is for up to 85kg rider, it looks ineffective on unspring weight but as soon as you sit on the bike, the guard shifts into place. Trust me.

Some supports are needed for the guard, it should be safe to print with low infill. PETG or ABS is recommended for this. Beyond the prints you'll need two 5mm bolts and nuts, and spacers. Spacers and nuts are what hold the piece attached to the frame, check pictures for details. The round spacers in print are meant to go into the holes in the frame.