My Ryde Fx rear is done and am told it is a throw away. I still ride this sled alot when snow doesnt merit using 163 dragon.So what would you replace it with and from who. While im at it should i replace front track allso and with what? Allso what do you like for ski shocks. Do i look at fox float2 or zero pro for rear? Dont know if zero pro is still out there.Thanks for your help.