A jig to raise the nut to tension the timing belts on a ducati. Schould fit a metric size 30mm.
The small one (13mm) is to pre-tighten the smaller nut, especialy the one behind the frame that doesn't fit a socket wrench and hard to reach with the jig attached.
Only for pre tichtening, not to torque.
I printe upside down with support so that the inside was ‘clean’
I used android app "Spectroid" to measure the frequency.
The author marked this model as their own original creation.