You should listen to me. No, seriously, listen to me.
Join Date: Oct 2008
Location: Santa Barbara
Motorcycle: Blue 2006 GSX-R1000
Re: Can't identify rear spool block spacer
It's a bit hard to tell just what you have but the second pic looks like a custom stretched swingarm with custom chain adjusters and the third looks like an OEM swingarm with the custom adjusters that don't fit well into the OEM slots. If so, you need to get some adjusters, OEM or quality aftermarket, that fit as least as snugly as the OEM adjusters. You're asking for problems with that much slop.