"Maybe it's hopping curbs?" Can't see how that would affect the shifting, but if you are graceless you can beat up the wheels enough to cause them to get out o

"Maybe it's hopping curbs?" Can't see how that would affect the shifting, but if you are graceless you can beat up the wheels enough to cause them to get out of true. If you have my wheelsets, 32 spoke 3x on HED Belgium Plus rims that I built myself, you can hop curbs all you like. I do, and I ride non-technical dirt too. As for shifting, I've been riding for 45 years and have never had a problem with manual shifting, from the dark ages 5x2 speed to my current 9x3, 10x2 and 11x2 rides. Frankly I am happily shocked at the precision and durability of my newest bike, the 11x2, given the narrowness of the chain. After 2.5 years of 3x weekly 3000' climbing, including some dirt, riding through the winter, and the drive train is dirty, no missed shifts and no noise. Amazing. I would never have guessed that.