Jon Carson is a pretty serious dude, when he isn't racing road, mountain or cyclocross he's out touring on his 2014 Kona Sutra. After commuting on it for most of the winter he decided it was time to do some upgrades. He replaced the stock Shimano drive train and crankset with Sram Force and X9 parts and replaced the Tektro shifters and brake hoods with Sram Rival. He also replaced the stock wheels with some Roval 29ner wheels he had lying around for a more rugged ride. He topped off the upgrades with a nice Brooks saddle. All in all it's a super nice build so pics had to be taken. Enjoy!