Set of used PSI springs with only 50-60 eight mile passes on hp. Changed because of new cam set up. specs as follow "triple (o.d.: 1.660) (i.d. outer: 1.195) (i.d. middle: .870) (i.d. inner: .630) (seat psi: [email protected]) (open psi: [email protected]) (rate lb./in.: 725) (retainer step: .100) (max lift: 1.000) (coil bind 1.130). Just had all springs check yesterday and all are almost as good as new. $100.00 firm. paid $750.00 2 years ago.