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what speed is 7500 in fifth?

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  • what speed is 7500 in fifth?

    that's the fastest I've been, and not for long because it felt like floating on that so so road
    my bike is a standard xj 11, it shouldn't differ from earlier models
    82 XJ1100 Klonk= SOLD
    No longer active member.

  • #2
    Originally posted by greg maz View Post
    that's the fastest I've been, and not for long because it felt like floating on that so so road
    my bike is a standard xj 11, it shouldn't differ from earlier models
    Hi Greg,
    Now I am worried about you. 7500 in 5th is pretty damn quick.
    First you post about lack of brakes then you ask how fast you were going
    Phil
    1981 XS1100 H Venturer ( Addie)
    1983 XJ 650 Maxim
    2004 Kawasaki Concours. ( Black Bear)

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    • #3
      u got me good
      but it's all true
      it was last summer, the brakes were fine then - I mean decent, I prepped the bike nice for a vegas run
      I just couldn't resist, turns out the bike handled tip top, but the road was not the greatest
      not bad for a salvaged ride (found it in an alley, PO crashed in 93)
      82 XJ1100 Klonk= SOLD
      No longer active member.

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      • #4
        If 3950 rpms is 60mph, then 7500 is 114 mph.

        Originally posted by greg maz View Post
        that's the fastest I've been, and not for long because it felt like floating on that so so road
        my bike is a standard xj 11, it shouldn't differ from earlier models
        Skids (Sid Hansen)

        Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.

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        • #5
          The way I see it, there's only one speed at 7500 in 5th...too fast speed! Slow down brother!! Brakes or no brakes, it ain't good!!!!!
          CG Lisk
          1980 X1100 Special
          Standard Tank Conversion
          Bagger

          Comment


          • #6
            I'm not agreeing with that. By that math, then at redline, you'd only be going 129. Redline is supposed to be right @ 140 for these bikes. I think he was well into the 120's, but don't have the math to prove it.

            Tod
            Try your hardest to be the kind of person your dog thinks you are.

            You can live to be 100, as long as you give up everything that would make you want to live to be 100!

            Current bikes:
            '06 Suzuki DR650
            *'82 XJ1100 with the 1179 kit. "Mad Maxim"
            '82 XJ1100 Completely stock fixer-upper
            '82 XJ1100 Bagger fixer-upper
            '82 XJ1100 Motor/frame and lots of boxes of parts
            '82 XJ1100 Parts bike
            '81 XS1100 Special
            '81 YZ250
            '80 XS850 Special
            '80 XR100
            *Crashed/Totalled, still own

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            • #7
              I am guessing he was doing 85.
              Harry

              The voices in my head are giving me the silent treatment.

              '79 Standard
              '82 XJ1100
              '84 FJ1100


              Acta Non Verba

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              • #8
                woohoo!
                did it once
                don't tell me I am the only 1
                well if so... call me the One or somthin
                thx for the info
                I got to go faster on these 2 wheels than I ever went with my fastest car and namely best of all, my good old 280Z
                cheers
                82 XJ1100 Klonk= SOLD
                No longer active member.

                Comment


                • #9
                  Naw.. go to the "Who owns the fastest XS" thread and look at the poll results.
                  Try your hardest to be the kind of person your dog thinks you are.

                  You can live to be 100, as long as you give up everything that would make you want to live to be 100!

                  Current bikes:
                  '06 Suzuki DR650
                  *'82 XJ1100 with the 1179 kit. "Mad Maxim"
                  '82 XJ1100 Completely stock fixer-upper
                  '82 XJ1100 Bagger fixer-upper
                  '82 XJ1100 Motor/frame and lots of boxes of parts
                  '82 XJ1100 Parts bike
                  '81 XS1100 Special
                  '81 YZ250
                  '80 XS850 Special
                  '80 XR100
                  *Crashed/Totalled, still own

                  Comment


                  • #10
                    yeee haa

                    according to cycleworld mag our bikes are good for 132 at 8000 RPM red line so at 7500 it comes out to 123.75MPH. which as suggested earlier is enough to make your doctor and your insurance person think about raising your rates. if you really want to know just blow by a cop at speed then pull over and consult. My experience is that they are quite chatty when they get to see big numbers
                    Alias Larry R in Kelso WA

                    When in dought, punch it.
                    XS1100LG Precious current
                    XS1100SF Ruby gone to a better home
                    KZ900B MIA stolen (ALL bike thieves MUST GET OFF THE PLANET more politically correct ???)

                    Comment


                    • #11
                      I love this thread ....

                      and since owning a modified G, (85mph speedo) I've thought a couple times about changing to a 160mph guage ..... but I never do. I don't think I wanna' know...
                      80G Mini-bagger
                      VM33 Smooth bores, Pods, 4/1 Supertrapp, SS brake lines, fork brace

                      Past XS11s

                      79F Stone stocker and former daily driver, sold May '10 now converting for N.O. to cafe style
                      79SF eventually dismantled for parts
                      79F Bought almost new in 80, sold for a house
                      79F The Ernie bike sold to a Navy dude summer 08
                      79SF Squared-off Special, Vetter/Bates tour pkg., Mikes XS coils, G rear fender and tail light. Sold June 09

                      Comment


                      • #12
                        i brought a 160 mph guage for my 80g, the 85 mph that is just not right. this is a motorcycle not a moped. sometime i feel the need for speed, and i gots to know.
                        80 xs1100G

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                        • #13
                          I understand the reason they got rid of the 85mph speedometer was because people were arguing in court that they were only going 85 when they were going much faster. How could they know how fast the were going if their speedometer said 85???? I think the best they were getting charged for was 20 over... That was with the auto speedometers at the time. Sure the bikes were the same thing.

                          Rodger
                          RIP Whiskers (Shop Boss) 25+yrs

                          "It doesn't hurt until you find out no one is looking"

                          Everything on hold...

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                          • #14
                            yeee haa part2

                            sorry but, I haven't rode in a month the sun came out after my last thread and I realized that I was wrong NOT the first time but the ride did get my head straight... with our red line 8500 the speed at 7500 would be 116.47.
                            Alias Larry R in Kelso WA

                            When in dought, punch it.
                            XS1100LG Precious current
                            XS1100SF Ruby gone to a better home
                            KZ900B MIA stolen (ALL bike thieves MUST GET OFF THE PLANET more politically correct ???)

                            Comment


                            • #15
                              Originally posted by trbig View Post
                              I'm not agreeing with that. By that math, then at redline, you'd only be going 129. Redline is supposed to be right @ 140 for these bikes. I think he was well into the 120's, but don't have the math to prove it.
                              I do.

                              I think we've been over this topic ad nauseum in the past but here goes again. The standard gear reduction equation is:



                              Depending on your rear tire calculated speed will vary somewhat. I used the published numbers for a Bridgestone BT45:

                              130/90-16 - 25.0 inches - computes to 117.04 mph @ 7500
                              120/90-17 - 25.3 inches - computes to 118.45 mph @ 7500
                              130/90-17 - 26.2 inches - computes to 122.67 mph @ 7500


                              A 130/90-16 on a stock geared Eleven will peg the redline of 8500 rpm at a calculated 132.6 mph. But's that what it "should do". I've had 5 of these beasts. In my experience the fastest I've ever been able to push a stock Eleven was 127 to 128 indicated...that was a '79 SF in pristine condition and I was going down a very slight grade...with no wind. I've never been able to push any stock Eleven to redline in 5th gear. They're great old bikes....but they just don't make enough steam to redline in 5th gear. Your mileage may vary and probably does. But.......I don't think one of these old (stock) Elevens would hit 140 if you threw out of an airplane.

                              Now where's the popcorn...this should prove entertaining.
                              Last edited by Elevenator; 01-16-2009, 05:44 PM. Reason: Clarification

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