Hi, I expect upgrade my disc hub with stainless steel shell drive ,I can mix steel shell with alloy spider like Sram pg 980 or better mouny stell only like pg 970 casette. also Sram casette = Sram chain or I can mount Shimano -Sram mix.
I have a few Kings with aluminum shells and the loose cogs (i.e. the ones not part of the spider on a given cassette) do dig in but it's not a big deal unless you run a cassette composed entirely of loose cogs. Some day I'll install the steel drive shell I've got waiting, but no need in several years of use otherwise. Use whatever combo of Shimano and SRAM chains and cassettes you want...
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