These stirrups are amazing; I cannot ride without them. I have knee issues; before these stirrups, my knees would ache so much during and after a ride to the point I was not sure it was worth it to ride on days my knee was bothering me. These stirrups allow me to ride pain-free. I also love the safety arm on them- the arm will only give out when a substantial amount of pressure is applied, so you do not lose your stirrup after a bad landing, etc. Also love the grip of the footbed.