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  • slotted rotors

    I am thinking about buying some slotted rotors (front) for my 1978 Standard. Is this a worthwhile upgrade? I plan to add ss brake lines as well. Any opinions on these upgrades.

    Thanks, Figman
    current bikes:
    1983 GS 1100E
    2009 Kaw Vulcan 1700 Classic

    past bikes:
    1978 XS 1100
    1994 FZR 600
    1984 V65 Sabre
    1973 CB 750
    1974 CB 750
    1979 KZ 750 twin
    1977 CB 550
    1983 XJ 750 Seca
    1981 900 super sport
    too many others to list

  • #2
    Be cheaper just to drill the ones you have. Not much of a benifit either way.
    Nathan
    KD9ARL

    μολὼν λαβέ

    1978 XS1100E
    K&N Filter
    #45 pilot Jet, #137.5 Main Jet
    OEM Exhaust
    ATK Fork Brace
    LED Dash lights
    Ammeter, Oil Pressure, Oil Temp, and Volt Meters

    Green Monster Coils
    SS Brake Lines
    Vision 550 Auto Tensioner

    In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

    Theodore Roosevelt

    Comment


    • #3
      The SS brake lines are a definite improvement.

      As to the slotted rotors, depends on the price. depends on your skill level and experience as to if you would notice any difference, I doubt most of us would.
      Life is what happens while your planning everything else!

      When your work speaks for itself, don't interrupt.

      81 XS1100 Special - Humpty Dumpty
      80 XS1100 Special - Project Resurrection


      Previously owned
      93 GSX600F
      80 XS1100 Special - Ruby
      81 XS1100 Special
      81 CB750 C
      80 CB750 C
      78 XS750

      Comment


      • #4
        Except in the rain. In the rain the solid rotors can cause a real problem with initial stopping power, where slotted or drilled will catch and apply braking power right away.
        Cy

        1980 XS1100G (Brutus) w/81H Engine
        Duplicolor Mirage Paint Job (Purple/Green)
        Vetter Windjammer IV
        Vetter hard bags & Trunk
        OEM Luggage Rack
        Jardine Spaghetti 4-2 exhaust system
        Spade Fuse Box
        Turn Signal Auto Cancel Mod
        750 FD Mod
        TC Spin on Oil Filter Adapter (temp removed)
        XJ1100 Front Footpegs
        XJ1100 Shocks

        I was always taught to respect my elders, but it keeps getting harder to find one.

        Comment


        • #5
          I just want better brakes. I have ridden for many years and enjoy the standard but as most of you know the brakes are a weak point. I think I will invest in the ss brake lines. Any other worthwhile upgrades?

          Thanks, Figman
          current bikes:
          1983 GS 1100E
          2009 Kaw Vulcan 1700 Classic

          past bikes:
          1978 XS 1100
          1994 FZR 600
          1984 V65 Sabre
          1973 CB 750
          1974 CB 750
          1979 KZ 750 twin
          1977 CB 550
          1983 XJ 750 Seca
          1981 900 super sport
          too many others to list

          Comment


          • #6
            Just looking to upgrade the brakes. As most of you know the brakes on the standards are weak (at least in my opinion) I also have the extra weight of the Vetter package. I think I will go with the ss brake lines for sure. Any other suggestions?

            Thanks, Figman
            current bikes:
            1983 GS 1100E
            2009 Kaw Vulcan 1700 Classic

            past bikes:
            1978 XS 1100
            1994 FZR 600
            1984 V65 Sabre
            1973 CB 750
            1974 CB 750
            1979 KZ 750 twin
            1977 CB 550
            1983 XJ 750 Seca
            1981 900 super sport
            too many others to list

            Comment


            • #7
              Originally posted by figman View Post
              Just looking to upgrade the brakes. As most of you know the brakes on the standards are weak (at least in my opinion) I also have the extra weight of the Vetter package. I think I will go with the ss brake lines for sure. Any other suggestions?

              Thanks, Figman
              That's about all you can do unless you want to look into a custom caliper and/or rotor swap. The calipers are actually a bit easier to do, it's just a matter of finding some that won't be too big of a hassle to adapt...
              Fast, Cheap, Reliable... Pick any two

              '78E original owner - resto project
              '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
              '82 XJ rebuild project
              '80SG restified, red SOLD
              '79F parts...
              '81H more parts...

              Other current bikes:
              '93 XL1200 Anniversary Sportster 85RWHP
              '86 XL883/1200 Chopper
              '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
              Cage: '13 Mustang GT/CS with a few 'custom' touches
              Yep, can't leave nuthin' alone...

              Comment


              • #8
                Aside from installing SS lines, dont expect braking to be what a dual piston caliper provides. All about hydraulic pressure and fluid displacement. Mine is still as it was when new. That is not necessarily a good thing but with no cracks from flexing at the fittings and regularly inspect before riding just because of age. Always been used to the limited braking effect on the front of these at highway speeds, and at lower speeds kinda like the anti-loc feel on the front. I don't ride the Venturer like my ST either just because first and foremost it IS a 30yr. old scoot now and too many things have fatigued over the years, even though still "looks" good.
                81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

                Comment


                • #9
                  Originally posted by figman View Post
                  Just looking to upgrade the brakes. As most of you know the brakes on the standards are weak (at least in my opinion) I also have the extra weight of the Vetter package. I think I will go with the ss brake lines for sure. Any other suggestions?
                  Thanks, Figman
                  Hi figman,
                  with some skill and research you can do a caliper upgrade on a Standard.
                  Us Special owners are stuck with those Weird Harold swivelly calipers.
                  Yes to stainless lines, they will improve any brake system.
                  Perforated disks work to sweep away brake dust & moisture so yes again.
                  If you have access to a milling machine to slot the plain disks or can find slotted disks for a bargain, great.
                  Or you can drill them.
                  You'll need a drill press, cobalt steel drill bits and lotsa coolant.
                  Use high tool pressure and slow drill speed.
                  Fred Hill, S'toon
                  XS11SG with Spirit of America sidecar
                  "The Flying Pumpkin"

                  Comment


                  • #10
                    Originally posted by motoman View Post
                    Aside from installing SS lines, dont expect braking to be what a dual piston caliper provides. All about hydraulic pressure and fluid displacement. Mine is still as it was when new. That is not necessarily a good thing but with no cracks from flexing at the fittings and regularly inspect before riding just because of age. Always been used to the limited braking effect on the front of these at highway speeds, and at lower speeds kinda like the anti-loc feel on the front. I don't ride the Venturer like my ST either just because first and foremost it IS a 30yr. old scoot now and too many things have fatigued over the years, even though still "looks" good.
                    I understand this is a 33 year old bike with 33 year old technology. I just want to have better brakes without dumping insane amounts of cash in it. I want the best bang for the $ upgrades.
                    current bikes:
                    1983 GS 1100E
                    2009 Kaw Vulcan 1700 Classic

                    past bikes:
                    1978 XS 1100
                    1994 FZR 600
                    1984 V65 Sabre
                    1973 CB 750
                    1974 CB 750
                    1979 KZ 750 twin
                    1977 CB 550
                    1983 XJ 750 Seca
                    1981 900 super sport
                    too many others to list

                    Comment


                    • #11
                      Originally posted by fredintoon View Post
                      Hi figman,
                      with some skill and research you can do a caliper upgrade on a Standard.
                      Us Special owners are stuck with those Weird Harold swivelly calipers.
                      Yes to stainless lines, they will improve any brake system.
                      Perforated disks work to sweep away brake dust & moisture so yes again.
                      If you have access to a milling machine to slot the plain disks or can find slotted disks for a bargain, great.
                      Or you can drill them.
                      You'll need a drill press, cobalt steel drill bits and lotsa coolant.
                      Use high tool pressure and slow drill speed.
                      I do have an extra set of rotors and may have access to a machine shop who will drill them or possibly slot them at reasonable price. Hopefully with the rotor upgrade, ss lines and upgraded pads my brakes will be somewhat better. I have cleaned and flushed the braking system and have a set of low mileage calipers and master cylinder off of a 80 standard to use as well.

                      Thanks for everyone's input.
                      Figman
                      current bikes:
                      1983 GS 1100E
                      2009 Kaw Vulcan 1700 Classic

                      past bikes:
                      1978 XS 1100
                      1994 FZR 600
                      1984 V65 Sabre
                      1973 CB 750
                      1974 CB 750
                      1979 KZ 750 twin
                      1977 CB 550
                      1983 XJ 750 Seca
                      1981 900 super sport
                      too many others to list

                      Comment


                      • #12
                        Drilled rotors and SS lines will change the feel of the brakes. You will go from f100 stock to Lincoln power brakes. When I changed everything on my '79, I did a panic stop shortly after and put the rear tire in the air!(and then broke the mirror on the truck that pulled out in front of me).
                        Do remember to CLEAN the brake system, and you can two finger to a stop with ease.
                        Ray Matteis
                        KE6NHG
                        XS1100 E '78 (winter project)
                        XS1100 SF Bob Jones worked on it!

                        Comment


                        • #13
                          Here's a thought...http://www.xs11.com/forum/showthread...aliper+upgrade

                          Good used HD caliper sets can be had for about $75-100, but I'm sure some looking around a bike boneyard could turn up some alternatives. New 'better' rotors are expensive ($140-up! EACH!!), so this swap would qualify as relatively low-buck. The big obstacle is the thickness of the XS rotors at .270"; most newer bikes use thinner rotors (typically around .2"), so finding a caliper might take some looking. There was a link to a business who offered a resurfacing sevice for bike rotors for $25 each (can't find it now...), so if you had the stock rotors turned thinner to match a later caliper, it's just a matter of building the adaptor after finding a caliper.

                          As far as drilling vs slotting, there's little difference. Drilling you can do at home with a drill press, with a decent bit, cutting/cooling fluid, and time. You can even avoid the time-consuming layout process if you get a same-diameter drilled rotor off another bike and simply clamp it to the XS rotor and use that as a drill guide. I did all three of mine in under three hours this way...
                          Fast, Cheap, Reliable... Pick any two

                          '78E original owner - resto project
                          '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
                          '82 XJ rebuild project
                          '80SG restified, red SOLD
                          '79F parts...
                          '81H more parts...

                          Other current bikes:
                          '93 XL1200 Anniversary Sportster 85RWHP
                          '86 XL883/1200 Chopper
                          '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
                          Cage: '13 Mustang GT/CS with a few 'custom' touches
                          Yep, can't leave nuthin' alone...

                          Comment


                          • #14
                            I do currently have a 54 hole pattern that I am trying to scan, but every time I scan a portion it resides it and just have not cared enough to get it worked out. I am trying to draw up a 72 hole pattern as well but have not finished it cause its not high on my priority list at the moment.
                            Nathan
                            KD9ARL

                            μολὼν λαβέ

                            1978 XS1100E
                            K&N Filter
                            #45 pilot Jet, #137.5 Main Jet
                            OEM Exhaust
                            ATK Fork Brace
                            LED Dash lights
                            Ammeter, Oil Pressure, Oil Temp, and Volt Meters

                            Green Monster Coils
                            SS Brake Lines
                            Vision 550 Auto Tensioner

                            In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                            Theodore Roosevelt

                            Comment


                            • #15
                              You guys need to talk to Foreda. I just sent him a cad file of rotor templates that I drew last year. Or PM me your email and I'll send 'em to you too. They may not be the pattern you're looking for but they're a good starting point to design your own, if you have Autocad, or something that will edit dwg files.
                              1980 SG. (Sold - waiting on replacement)
                              2000 XJR1300. The Real modern XS11. Others are just pretenders.

                              Woman (well, my wife anyway) are always on Transmit and never Receive.

                              "A man should look for what is, and not for what he thinks should be" Albert Einstien.

                              Comment

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