Has anyone ever decided to go sub compact, say 48/30, rather than change the rear cassette?
I have moved to hill country. My rear cassette is 12-25 and I struggle on some of the steeper ascents. I have a compact on the front.
I have a Record rear derailleur (short) that won't cope with a larger ranging cassette. Instead of changing the rear derailleur and cassette I wondered if going to a sub compact would give me the equivalent of being in the 32 teeth sprocket?
I am crap at maths and struggled to grasp the tables that work it out for you.