I've just swapped out my 105 crankset so have one that I'll be getting rid of - it's not the latest version. Can send details and photos if it's of interest.
The insert looks like an interesting solution though so hopefully that'll work.
@Danimal started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I've just swapped out my 105 crankset so have one that I'll be getting rid of - it's not the latest version. Can send details and photos if it's of interest.
The insert looks like an interesting solution though so hopefully that'll work.