You are reading a single comment by @FredyCro and its replies.
Click here to read the full conversation.
-
Cheers, until couple of days ago I thought they are SS/IGH only, but then saw that Shimano lists them as 9-speed. Now I see that buying and converting R550 crankset for a 1x9 drivetrain was a mistake since I could have gone for Alfine straight ahead. I will try if the 45T guard will work with a 42T ring, if not I will grind down 42T ring for use as a guard with 39T ring.
FredyCro
They are size specific if you're using a dérailleur at the back (have to clear the chain when you shift into the higher gears), but the big guard would work with a smaller ring (albeit looking silly) on a single speed or hub gear.