Uploaded May 2019 | Updated September 2026, 2 weeks ago

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I made this mock up adapter out of plastic to see how this idea would work.
I already own a Luna Eclipse 42 tooth chain ring, but it has way too much offset for my carbon frame Fat bike.
This adapter gives me -7 mm reverse offset so that the teeth on the chain ring clear the chain says on my carbon frame.

Here's a post on a forum with lots of pics of the finished adapter
endless-sphere.com/forums/viewtopic.php?f=3&t=100173