Keeps your chain on.
Knocks when cage is pulled, cage lock feature is incredibly annoying, shifting is nothing special.Overall Review: I now have used two different (short and medium cage) Sram type II derailleurs on my trail/slope bike (a Santa Cruz Nickel 34x11-36 gearing), and have the Saint m820 derailleur on my DH bike. They both do a great job keeping the chain quiet. The clutch did a surprisingly good job keeping the chain on. For the first two weeks I rode the nickel, I didn't have a chain-guide on it, and the chain didn't fall off once in 4 days of freeriding with 13' drops and all the jumps at Mountain Creek. Everywhere else, the sram derailleur has fallen short. Compared to the switch that engages the clutch on the shimano- Once the cage Read More »