Joined: Mar 2008
Posts: 5,559
Likes: 53
From: The 'Wack, BC, Canada
Bikes: Norco (2), Miyata, Canondale, Soma, Redline
It's not a standard size but it is the pedal size.
I'm guessing there must be a copy cat company that makes bicycle sized helicoils for this but the actual Helicoil site doesn't have this size at all or any left hand thread kits that I can see.