This is my first set of carbon wheels. I've ridden I9 for MTB and getting more into gravel and kept hearing great things about Reynolds wheels. I finally pulled the trigger and the difference between stock wheels and these ATR X is night and day. The engagement is amazing and the carbon wheels smooth out all the rough spots of the road. I'm riding WTB Byway 47mm tires on these wheels and the combination of tires and wheels on gravel is amazing. I spent the weekend on a long road/gravel ride and these wheels made a huge difference! Can't wait to keep putting these to the test!