2011 Scalpel, SRAM X9 RD with Sram cassette. 2X9 Gearing.
The bike is new to me, and it's my first full suspension bike. In other words, I'm used to a hardtail.
The rear derailleur is adjusted and shifting crisply, and the chain is properly shortened...
But, when I'm on the trail and I shift while the suspension is springing up & down, the chain will jump several cogs and even sometimes fall right off the cassette.
I'm sure this is not normal, what to do?
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Thread: Weird Shifting on my Scalpel