Bending Aluminum Clutch Lever??

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  • TomK
    Senior Member
    • Oct 2013
    • 104

    Bending Aluminum Clutch Lever??

    I have a GMA clutch lever, and would like to increase the “throw” to pull the clutch cable farther. It’s not pulling the cable far enough to completely release the clutch (Baker 6-in-4).

    Here’s a picture of my clutch lever. It’s polished aluminum. I’ve watched videos of people using a propane torch to heat clutch/brake levers while applying leverage (pipe, wrench, etc) to bend them. As you can see in the picture, if I hear the circled spot, I could bend the lever out to the point where it would be parallel to the grip. This would give me maybe 1/4” more travel for the clutch cable, which should be enough.

    Click image for larger version

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    Is this advisable? Would the lever weaken or crack? Has anyone done anything like this?

    Thanks!
  • JBinNC
    Senior Member
    • Dec 2018
    • 2713

    #2
    Get two. You will probably break the first one.

    Jim

    Comment

    • Tattooo
      Senior Member
      • Sep 2012
      • 12407

      #3
      Originally posted by JBinNC
      Get two. You will probably break the first one.

      Jim
      Yep he might need to get 3 just to be safe..................

      Comment

      • TomK
        Senior Member
        • Oct 2013
        • 104

        #4
        I hope not. I already had to modify it to work with a Shovelhead clutch cable.

        Comment

        • flatman
          Senior Member
          • Sep 2017
          • 550

          #5
          I remember reading somewhere you can bend aluminum but only one way. Bending it back will break it. Tried it on a couple of bent aluminum fins, one with heat and yeah they both broke. But again I was bending them back straight.

          Comment

          • frisco1rigid
            Junior Member
            • Sep 2021
            • 26

            #6
            I have done it a few times. I do Not use heat because Aluminum does Not show signs of softening or bendability, it just falls apart.
            These two handles are the old style 4-speed on a Mousetrap, I have no idea if the metal is diff on the New style handles.

            I was very careful and slow.
            It seems to me that taking up some "slack" in the cable might be a solution.

            Click image for larger version

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            Comment

            • selectedgrub
              Senior Member
              • Dec 2009
              • 704

              #7
              Put the cable end in a vice and a ring spanner over the ball end.
              Wave a OA torch over the full length as you apply slight pressure on the spanner.
              You will soon feel it move, slow and a gradual heat is what you do.
              Move the spanner up the lever to even out.

              This is a bicycle crank which I made into a mirror stem.

              Comment

              • TomK
                Senior Member
                • Oct 2013
                • 104

                #8
                Thanks. I’ll give it a try tomorrow. I guess if I break it I can use the clutch lever off my Ironhead while I get another.

                Comment

                • Tattooo
                  Senior Member
                  • Sep 2012
                  • 12407

                  #9
                  Originally posted by selectedgrub
                  Put the cable end in a vice and a ring spanner over the ball end.
                  Wave a OA torch over the full length as you apply slight pressure on the spanner.
                  You will soon feel it move, slow and a gradual heat is what you do.
                  Move the spanner up the lever to even out.

                  This is a bicycle crank which I made into a mirror stem.
                  ^^^^^ He should know more than anyone here.....^^^^^^^^^^^

                  Comment

                  • TomK
                    Senior Member
                    • Oct 2013
                    • 104

                    #10
                    I was able to bend it this morning using the technique selectedgrub recommended. Once it cools down, I’ll post before and after photos. Thanks again.

                    Comment

                    • TomK
                      Senior Member
                      • Oct 2013
                      • 104

                      #11
                      Here are the before and after photos:

                      Click image for larger version

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                      As you can see, I’m able to pull the lever in farther now. I think this may have fixed my problem. Now, when I pull the clutch lever in all the way, I can spin the clutch hub with my hand. I couldn’t before.

                      I can’t test ride it right now, though, so I’ll have to wait to report on that.

                      Comment

                      • TomK
                        Senior Member
                        • Oct 2013
                        • 104

                        #12
                        Tested it in my driveway. No pulling in first gear with the clutch pulled in.

                        Comment

                        • frisco1rigid
                          Junior Member
                          • Sep 2021
                          • 26

                          #13
                          Bravo !!
                          Excellent results.

                          Comment

                          • Hubbard
                            Senior Member
                            • Dec 2010
                            • 813

                            #14
                            Originally posted by selectedgrub
                            Put the cable end in a vice and a ring spanner over the ball end.
                            Wave a OA torch over the full length as you apply slight pressure on the spanner.
                            You will soon feel it move, slow and a gradual heat is what you do.
                            Move the spanner up the lever to even out.

                            This is a bicycle crank which I made into a mirror stem.

                            the difference between a man thats done it and a bunch that ain't

                            Comment

                            • tzienlee
                              • Apr 2024

                              #15
                              they bend real easy when ya bike falls over or leans against a wall but a bastard to straighten out after !!

                              Comment

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