So I have a lovely Cirrus 4 that I call my adventure bike. Currently I am running the stock groupset that I would like to upgrade. This bike currently has a hyperglide hub and threaded bottom bracket. What I want to do is get a nice 1-by front ring and have a bigger range in the back. I am totally happy sacrificing speed for hauling so I would like to get something like a 42 in the front, and a 11-42 in the back. I don’t have much experience with these lower tier groupsets and where the mountain bike compatibility starts and ends.
Has anyone done any kind of rebuild like this?
I can’t see why this setup wouldn’t work. I do favour a max of 36T with a smaller chainring up front. The shorter cage derailleur you can have the better. What you have here will work with a narrow wide chainring. You can space the BB for chainline :)