Re:
All seatpost sizes dependent on outer diameter and tube thickness
o.d gauge
753 28.6 0.7/0.5sb
731 os race 28.6 0.8/0.5sb
708 28.6 0.9/0.6sb
653 28.6 0.7/0.5sb
531c 28.6 0.8/0.5 sb
531st 28.6 1.0/0.7sb
525 28.6 0.9/0.6sb
525os 28.6 0.9/0.6sb
501 28.6 0.9/0.6sb
500 28.6 1.0
531 all terrain 28.6 1.0/0.7sb
531 magnum 31.75 1.0/0.7sb
501 all terrain 28.6 1.0/0.7sb
501 magnum 31.75 1.0/0.7sb
500all terrain 28.6 1.0/0.7sb
500 magnum 31.75 1.0
All seatpost sizes dependent on outer diameter and tube thickness
o.d gauge
753 28.6 0.7/0.5sb
731 os race 28.6 0.8/0.5sb
708 28.6 0.9/0.6sb
653 28.6 0.7/0.5sb
531c 28.6 0.8/0.5 sb
531st 28.6 1.0/0.7sb
525 28.6 0.9/0.6sb
525os 28.6 0.9/0.6sb
501 28.6 0.9/0.6sb
500 28.6 1.0
531 all terrain 28.6 1.0/0.7sb
531 magnum 31.75 1.0/0.7sb
501 all terrain 28.6 1.0/0.7sb
501 magnum 31.75 1.0/0.7sb
500all terrain 28.6 1.0/0.7sb
500 magnum 31.75 1.0