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    Rear Spring rate Question?

    Is it worth it to replace just the rear Springs. I found some progressives for the rear on ebay for a good price they are progressive with a spring rate of 105/150 model #ds-310032. Is that to high of a spring rate for a 78550E. And are the shocks to old/weak to dampen them? has anyone had success with changing just the rear springs?

    #2
    I did it for awhile but I have the forks that take air. (Not sure if you do or not) After I blew out the fork seals I went with the Progressive springs. You'll want to do it after you feel the difference in the rear. It's just safer to run with new front and rear suspension. Just think of how old they are.
    I feel I hold the road much better with the new front and rear springs and shocks and I reccomend it highly.
    1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
    1985 GS1150ES stock with 85 Red E bodywork.

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      #3
      Originally posted by chef1366 View Post
      I did it for awhile but I have the forks that take air. (Not sure if you do or not) After I blew out the fork seals I went with the Progressive springs. You'll want to do it after you feel the difference in the rear. It's just safer to run with new front and rear suspension. Just think of how old they are.
      I feel I hold the road much better with the new front and rear springs and shocks and I reccomend it highly.
      Which would you replace first if you didnt have the money to do both? The fronts are 80 bucks but the back can run alot higher.

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        #4
        Originally posted by tconroy View Post
        Which would you replace first if you didnt have the money to do both? The fronts are 80 bucks but the back can run alot higher.
        If you are bottoming out the rear than start with those. If your fronts bottom out with strong braking than do those first.
        If both are well.....................
        I would consider the front springs as the more important of the two since they are involved with steering and take the majority of the braking.
        1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
        1985 GS1150ES stock with 85 Red E bodywork.

        Comment


          #5
          Originally posted by Boondocks
          That's a handsome picture of you, Bill. You're a regular Peter Boyle lookalike.:-D
          Why thank you Phillip:-D
          1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
          1985 GS1150ES stock with 85 Red E bodywork.

          Comment


            #6
            I ordered the rear progressive 418 springs for my shocks. I took measurements before ordering. I'll be getting the fronts soon too. Now I can save for the 418 rear shocks in ther meantime.

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