I'm having an issue with my Rear D on my Spec Enduro 2010. Stock x7 shifters and x9 rear derail. New PG990 cassette.
Normal riding, the rear shifts fine. Rock gardens its ok too. When I go off a jump or drop, or even sometimes bunny hop over stuff, the rear shifts by itself. The drops are around 2ft. It mostly drops to a lower gear (smaller cog). Anyone know how I can resolve this or what the issue may be.
No loose cogs, chain wear has been checked. No problems shifting normally. Thanks!
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Thread: Rear D Shifting on Own
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