Titanium BST sprocket drive pins

These are titanium BST sprocket drive pins for an Aprilia, they’ll be raced in America. Twiddly things to make, i had to make a holder to hold when cutting the second thread as there isn’t enough plain section in the middle to hold on to, so it made them a bit more involved and nerve wracking to produce. I’m not a big fan of holders, they have a tendency to move when you don’t want them to, i prefer to hold onto the job itself if i can.

Titanium Aprilia BST sprocket studs
Titanium Aprilia BST sprocket studs
Titanium Aprilia BST sprocket stud undercut
Titanium Aprilia BST sprocket stud undercut
Titanium Aprilia BST sprocket drive studs
Titanium Aprilia BST sprocket drive studs
Titanium Aprilia BST sprocket drive stud, 4mm socket
Titanium Aprilia BST sprocket drive stud, 4mm socket

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