I snapped my rear x4 8 speed long cage derailleur. Standard hitting the spokes and chewing it up. Bad setup yes I know.
I've just brought a SRAM x7 8 speed short cage. Now obviously I have a 2 speed front which I understand I won't be able to use. I also understand it would be best to use a close ratio cassette.
I'm a complete noob to this so bear with me.
1) do cassettes have a generic fit on a hub/freewheel? 2) What range/size cassette would you suggest and what front ring size to go with it? I'm incredibly unfit since stopping riding (used to BMX) 3 years ago so low end is a consideration however plan to ride some XC but mainly downhill and jumps 3) Anything else about this I've completely missed?