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    #91
    Originally posted by Rob S. View Post
    This is why I insisted on a 'neutral' Sportster. I also dislike the very look of most of the stock Harleys. Big fat tires or skinny ones. Undersize wheels or oversize. Not for me.
    Yeah there's a bit of vanity with tires bigger looking better but going bigger can definitely come with detrimental consequences to handling, factory engineers of the day made careful calculations based on the bikes geometry and tire technology. The efe design did allow for an optional larger factory wheel tire combo I don't recall exactly how much larger but I think it was .5".
    1979 CBX, AW440 Maico, GS1150EF

    Comment


      #92
      Originally posted by wyly View Post
      The efe design did allow for an optional larger factory wheel tire combo I don't recall exactly how much larger but I think it was .5".
      Very interesting! Can anyone add to that?
      1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

      2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

      Comment


        #93
        As far as I know, the 84 model had a 3” wide rear wheel like the earlier 1100e bikes. 85 on had 3.5.
        sigpic
        When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

        Glen
        -85 1150 es - Plus size supermodel.
        -Rusty old scooter.
        Other things I like to photograph.....instagram.com/gs_junkie
        https://www.instagram.com/glen_brenner/
        https://www.flickr.com/photos/152267...7713345317771/

        Comment


          #94
          Yes it could be because of the year, I nearly bought the larger wheel on this site. Manufacturers also have different specs dependent on the country or region that the bike is sold, I don't know if that applies here. I've noticed Canadian bikes are frequently different from US or European versions.
          1979 CBX, AW440 Maico, GS1150EF

          Comment


            #95
            I have noted previously the old wheel size. I made the mistake of putting it in big letters

            [IMG][/IMG]


            My main reason for swapping it over were
            1. Get a better range of modern tyres to use
            2. I was getting near the end of project so needed something else to fiddle with
            3. Learn something new. Once you have removed and re-installed a wheel 20 times it becomes easy

            I could have put a 150/60-17 tyre on but there were only new ones available and that was going to cost an additional $120 over a slightly used 160/60-17 so the wider tyre won. To be fair I hadn't even thought about chain clearance at that point.

            Anyway I have moved the rear wheel over to the right far enough now that I can put the wider Cush drive from the original GSXR-750 wheel back on and remove the spacers. Chain clearance is now a massive 6mm or so.

            Another test ride and the bike really does feel different now. Going through corners it tips into them just like I was riding on my 2010 GSXR-1000. And that is why you want to swap out the old forks and wheels for new (relatively) ones. My 3rd loop of my test course (about 15km) and i am starting to scrape my toes on some corners, not intentionally, I just have more confidence when leaning in.
            And I still have the original rear shock in so that is probably causing some issues. The problem is new ones cost $799 locally.
            80 GSX1100 ET
            82 GSX750 EZ
            84 GSX1150 ES
            86 GSX750 ES
            10 GSXR1000

            Comment


              #96
              I have a Ducati M900 shock in place of the original. Nearly a bolt in except that I had to mount it upside down and it was recommended to use the GS spring which I did. It was a whopping $60 used.
              sigpic
              When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

              Glen
              -85 1150 es - Plus size supermodel.
              -Rusty old scooter.
              Other things I like to photograph.....instagram.com/gs_junkie
              https://www.instagram.com/glen_brenner/
              https://www.flickr.com/photos/152267...7713345317771/

              Comment


                #97
                I'd like to go to larger rubber in the future the 16" front doesn't leave many options for tire selection.

                I don't think I'd need to go to as large 160 on the rear but Ensure is demonstrating it can be done.
                1979 CBX, AW440 Maico, GS1150EF

                Comment


                  #98
                  For the Number plate light I have bought a 10cm long LED striplight with connector

                  [IMG][/IMG]

                  and found an old piece of plastic tube to mount it in

                  [IMG][/IMG]

                  I then glued it over the holes I had drilled in Lens, double checking I had the LEDs pointing in the correct direction

                  [IMG][/IMG]


                  Drill a hole to get the wires out

                  [IMG][/IMG]

                  A quick bench test

                  [IMG][/IMG]


                  Now to get it back on the bike
                  80 GSX1100 ET
                  82 GSX750 EZ
                  84 GSX1150 ES
                  86 GSX750 ES
                  10 GSXR1000

                  Comment


                    #99
                    That worked out nicely. When I modified my tail assembly I wondered why didn't Suzuki do exactly what you have done, it seemed the easy solution rather than the complex monstrosity they produced.
                    1979 CBX, AW440 Maico, GS1150EF

                    Comment


                      Yeah but 35 years ago it was the "thing". If you look at an 84 Corvette or Dodge Daytona they match the styling of these bikes pretty much.
                      1986 1150EF
                      2008 GS1250SEA

                      Comment


                        Originally posted by Big Block View Post
                        Yeah but 35 years ago it was the "thing". If you look at an 84 Corvette or Dodge Daytona they match the styling of these bikes pretty much.
                        the part in question wasn't styling feature, it was a clumsy attempt to cast light on the plate to meet road legal requirements it was finished in flat black in order to obscure it. My 79 CBX has exactly the same set up as what ensure has manufactured here.
                        1979 CBX, AW440 Maico, GS1150EF

                        Comment


                          I thought I would try and measure bikes weight to see what sort of difference I have made. I pushed bike up onto some 6x1 timber and thought if I put some scales front and rear I could measure it in 2 halves fairly accurately by just pushing the bike back & forth a bit.

                          Front End first

                          [IMG][/IMG]


                          138kg. Unfortunately the limit on scales (in small print) was 130kg on scales and now I just get Error message so this is yet to be finalised.

                          here is updated drawing of wheel installation with new Cush Drive and different spacers for anyone who might want to replicate this method

                          [IMG][/IMG]
                          80 GSX1100 ET
                          82 GSX750 EZ
                          84 GSX1150 ES
                          86 GSX750 ES
                          10 GSXR1000

                          Comment


                            Start with factory dry weight 524 lbs and deduct weight of any part removed , add back whatever after market you replace it with.
                            Oem exhaust weighs a hefty 34 lbs if you don't have them to weigh.
                            I haven't done a calculation lately for my efe but I believe it's about 480 lbs/ 218kg
                            1979 CBX, AW440 Maico, GS1150EF

                            Comment


                              I weighed my 11E once by separately weighing the front and back with a bathroom scale. Seems like it works because the total was very close to the weight Cycle World listed in 1982.
                              1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

                              2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

                              Comment


                                So I bought some new bathroom scales (180kg max) and tried again, I got the following readings

                                Front - 120kg
                                Rear - 118kg

                                Total 238kg

                                Bear in mind that this is wet weight, I have about 14 litres of petrol and 3.5 litres of oil in there so if we subtract that at 1kg/litre I get about 220kg

                                Dry Weight from manual for a ES is 237kg so I think I am pretty close to accurate based on what I have removed
                                80 GSX1100 ET
                                82 GSX750 EZ
                                84 GSX1150 ES
                                86 GSX750 ES
                                10 GSXR1000

                                Comment

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