This are the third evolution of the aerofly 1 and 2, the rapids is lighter, more comfy, yet plenty stiff for sprints compared to AF1 and 2, which was a nice surprise for me!
Almost exclusively used inside on zwift.
Very light, with internal routing options. I've since parted out my rim brake trainer bike and have a set on my current disc bike, so these need a new home.
Very firm at $180, I paid nearly double for these.