Originally Posted by Moisture

Was accelerating pretty hard through a stop sign today. Seems like the bike was upshifting on its own a little bit when pedalling hard. It resulted in a shift so hard and responsive, I felt the rear rim chatter against the pavement slightly as the derailleur flicked into the next smallest cog. Such an awesome and responsive shift, I felt I had to share. I think it's because of the stiffer spring in my suntour derailleur which caused the shift to be so positive. It was just like the chattering you get when dumping the clutch in a manual transmission at high engine RPM's!