Those damn sprocket shaft nuts, the dude I bought my shovel from was having the dealer do the maintenance on the bike for him so that thing was caked with red loctite and torqued to the moon, luckily all loctite has a temp range where it ceases to hold, little heat always does the trick
Ya could of "shocked" it off, by hitting a short breaker bar w/a hammer. I dig you young dudes builds, but wish you all had more "old skool", experience! Im available! Love,,,,DUBS,,,,,