DooDah
Veteran
- Location
- France, now Northamptonshire
I am thinking of changing the cassette on my winter bike to make the steep hills near me more manageable. I have Sora 9 speed and 12-26T or 11-26t (I can't remember off hand). I was looking for 28t but I can only find a 30T cheap at CRC. I am fine with this, but will my rear derailleur cope with it and will I have to buy a new chain as well?