Ive got 3 sets of bombers. brill for jump / street bikes .. Ive got my oldest bombers on my rex think theyre 1996 I run them at 95 pound in each bear in mind theyre only air with an upgraded rebound cartridge and they're stupidly hard. yet on my cross dual sus I only run 65 gives it that ease and rock for riding. for trials you'd have to have lockoffs ive only got mine on cos i love pump tracks and downhill .