Running 26, 36, 48 on Front. Bicycle is a 2001 Sirrus. Looking at changing rear cassette, do I choose 11:32 or 11:34 at the back. Does anyone have any experience of the different steps between these gears.
I use the bike for commuting pretty flat, but hit the hills at the weekend.
Lastly if I fit the 11-34, will I need to adjust the chain any ?