Originally Posted by
Barrettscv
The first two are correct Shimano Deore chainrings, the second link provides better information. You want the 64 bcd bolt circle with 22 teeth.
The bottom item is not your basic chain retainer. It's an adapter for a braze-on derailleur.
is this the same thing then?
Deda Elementi Dog Fang (Chain Catcher) | Chain Reaction Cycles