Just earlier this week I picked up the awesome rainbow disc wheel. It has been 2 years since I started Zwift and the wheels are finally mine. To grab some extra XP I did workouts up the alpe and scored the wheels 3/4 times which helped me gain a lot of XP. The 858/disc wheels are currently the fastest available for flat and rolling hill races according to Zwiftinsiders post. Here are some images of the wheels!