Was riding today and hit a decent sized bump that kind of jarred me and it sounded like the chain jumped in the back. Shifting wasn't precise after that and seemed to be in between gears. I only had a mile or two to make it back and will check out the adjustment tomorrow as I just got home after a six hour drive. Anyone had this happen to them and know what may have caused it? Specs are full SRAM Red on a Felt AR1 with Easton EC90 SL Clinchers.