Yeah, you need to change the chain before it wears too much to re-use a cassette, usually around .75 on most wear gauges, a worn chain will wear a cassette pretty quickly and it's distance rather than time that does it.
Thanks snotty, looks like I can do it pretty cheap from SJS.
@Squaredisk started
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Yeah, you need to change the chain before it wears too much to re-use a cassette, usually around .75 on most wear gauges, a worn chain will wear a cassette pretty quickly and it's distance rather than time that does it.