I was cleaning up and polishing some cranks today... Figured I'd take some pics.
First pic is the gunk packed under the ball completely blocking the galley hole, second pic is that same gunk scraped out onto a piece of paper. The third pic is "most" of the gunk scraped out of the three cranks I cleaned up today..
All three were very clean non spun standard cranks that had been thoroughly cleaned first...
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