A customer of mine told me their £600 worth of motorbike had 3 little cog wheels in the block, which eventually dulled out.
They tried to contact the retailer for spare parts but they were turned away and advised to buy a new motorbike instead.
So he asked me to reverse-engineer them. I've made a 3D model and 3D printed it in resin.
They fit perfectly in the bike and it is now saved.
Ride safe! :)