Newb - need to replace cassette, need help
I'm replacing the cassette on the back tire or at least I would like to. I don't know how to select a new cassette. What do I need to look for?
I just got new SRAM X7 shifters and front/back derailluers.
I have a Shimano Alivio crank (FM-MC20)
Thanks in advance.......
Which cassette are you replacing and why are you replacing it? The only relevence the rest of your drivetrain has when you choose a new cassette is how many gears you need.
The Shimano XT is generally considered the benchmark 9 speed cassette; it's strong, light and relatively inexspensive.
What use is a philosopher who doesn't hurt anybody's feelings? -
I'm assuming it's a 9 speed shifter set up? Each manufacturer makes a heirachy of cassesttes - the cheaper ones will be heavier and not have as nice a finish or nice shiny plating on it etc. They will still shift much the same, if the rest of the drivetrain (shifters, derailleur) is set up right.
There are also slight differences in ratios - you can generally get 11-32 tooth options or 11-34. The more teeth the lower the gearing.
Generally if you are replacing a cassette that's hada bit of use, you will need to replace the chain as well, as a worn chain may "skip" on the new cassette.
Don't forget the middle and/or granny chainrings. If they look like throwing stars they will cause your new chain to skip under pressure. The general result of this is an unfortunate meeting between your gentlemens and the stem.
Originally Posted by Sideknob
Very good point.
Originally Posted by Tebr73
I find the Shimano LX cassettes to be very high quality at a decent price. If you want to stay with all SRAM parts I suggest the 970. The more expensive ones can be a few grams lighter. The cheaper ones don't have as strong a finish.
Why are you replacing it? Is it worn?