Cheaper cassettes tend to have a bunch of cogs riveted, or screwed together, like the one on the right here.
Better quality ( XT & above ) are usually on one piece aluminium carriers, which seem to be friendlier towards softer freehubs.
@BareNecessities started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Cheaper cassettes tend to have a bunch of cogs riveted, or screwed together, like the one on the right here.
Better quality ( XT & above ) are usually on one piece aluminium carriers, which seem to be friendlier towards softer freehubs.