Originally Posted by
thirdgenbird
you dont need a proprietary ring...
the bolt is long and threads into the crank from the back and there is a spacer between the chainring and crank. its not rocket science, or new technology.
whats a pain about it? its just one chainring bolt that doesn't require a nut or any tool to hold it...
edit:
early campy cranks with the hidden bolt did have a "half spider arm" behind the crank and the nut was pressed into the large chainring. this did use a special chainring but you could use a standard chainring and nut if you wanted to. (ive done it)
You misunderstood me.
If this ring was a 4 bolt, and in the pattern pictured, it would be a proprietary ring, as that would make it different than the current 4 bolt pattern in use.
As for being a pain, I thought I recalled trying to get at the bolt of a regular chainring that happened to have the crank arm in the way before, however upon looking at the bike in question I was mistaken. It wasn't behind the crank arm at all, just a pain in the ass because the thickness of the crank arm at the spider made it awkward. For some reason I thought it was completely behind the crank arm.