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MX Foot Peg Widener

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  • MX Foot Peg Widener

    Vintage motocross bikes pre 85 and older had very small foot pegs. These small pegs offered little grip in the wet and have evolved over the years to the large ones of today.
    To bring these pegs up to date you can purchase large new ones if someone is manufacturing them for the bike you have, if not you can improve the existing ones by welding wideners on. There are some companies that manufacture wideners which can be purchased and welded on. I decided to make a set for one of my bikes and this is how I did it. This is not the only way to make them and this whole thread can be concided as entertainment by those that all ready know all there is is know.

    First I purchased some 20 x 3mm stainless steel plate.
    I then marked it up and started drilling out the holes required to make the serrated pattern I like.

    Ji
    Attached Files

  • #2
    Then I used a band saw to cut the profile of the serrated teeth.

    Ji
    Attached Files

    Comment


    • #3
      Once the cutting is all done I used a file to finish off the profile.
      Then I placed the plate into a bar bender.

      Ji
      Attached Files

      Comment


      • #4
        Hey presto I made a foot peg widener.
        I have to cut to length and then bend the other one.

        Ji
        Attached Files
        Last edited by Jigantor; 07-13-2010, 04:18 PM.

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        • #5
          With both profiled and bent they are now ready to be welded onto the existing foot pegs.

          Ji
          Attached Files

          Comment


          • #6
            Look good to me. My YZ has wide pegs, but those are just fine. Good deal!!
            Bob

            Comment


            • #7
              Hi Rbeckett,
              I made these for a Yamaha YZ125 1981.
              The original pegs only measure 30 x 67mm.
              With these wideners welded on they will be 49 x 80mm, similar to modern peg size.

              Ji

              Comment


              • #8
                I have not TIG welded a lot of stainless steel so yesterday I grabbed a few couplons, fired up the TIG and broke out the 316 filler rods.

                Not the best weld but good enough for this project.
                I will do some more practice before I finish the project.

                Ji
                Attached Files

                Comment


                • #9
                  I wouldn't want to wreck and have those teeth rip my leg off!

                  Comment


                  • #10
                    Hi nocheepgas,
                    Your right I wouldn't want that either.
                    I left the teeth long at this stage.
                    When they are welded on I will reduce, level and round them with a file.

                    Ji

                    Comment


                    • #11
                      This is the first time I have ever tried to fuse mild steel to stainless steel.
                      The mild steel plate is 50 x 3 x 16mm and the stainlees plate on top is 20 x 3 x 6mm.

                      Ji
                      Attached Files

                      Comment


                      • #12
                        Using a 316 rod the results are pretty good.
                        The welds are not that attractive but they should get the job done.

                        Ji
                        Attached Files

                        Comment


                        • #13
                          GREAT job.

                          Might have to make some of those myself for my vintage KX500

                          Comment


                          • #14
                            Hi Rob Tech,
                            They are not that hard to make and they can be made out of mild steel as well.
                            I was going to make them out of titanium but 3mm or 1/8" Ti plate is hard to come by. I have 1.6mm or 1/16" Ti plate but it would act like a knife and cut through my boot, I also have 5mm or 1/4" Ti plate but this would be overkill.
                            Ti would have to be bolted on to rather than just welding on. Chrome molly would work great as well if you have access to it in plate form.

                            Ji

                            Comment


                            • #15
                              Just in case there is a metric-imperial issue with scale of the welds here is a image with a match head placed on the plates.
                              This should give an idea of how small the welds are.

                              Ji
                              Attached Files

                              Comment

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