Originally Posted by Pendergast

I really like the shifting, too. If you're a stickler about drive train noise, you might not like Rival as well as Shimano. Shift noise is considerably louder than Shimano and chain noise is also louder(not sure what's causing the chain noise to be louder but I think it may be the missing tooth on the SRAM cassette cogs.) The chain noise isn't awful, but it is noticeable.