Needed this disc rotor to replace on my Trek Bicycle. I shop at Western Bike Works all the time for bicycling items. It was actually a little difficult to get the items because of pandemic issues. Just put my name on a list and a few days later notified the items were available. Ordered a pair and a handful of days later they arrived. These rotors were exactly what I needed are on my bicycle and work fine.
Western Bike Works I find to be about the best store to order anything having to do with cycling. Their prices are fair and they will match any vendor price from previous orders I have made.
They are the best from my experience.
Love the new design. Performance is excellent. No complaints. Maybe slightly less aero from the side? Seems like the old design had more cutouts that might catch crosswinds less... but I have no scientific date to back this up.