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Bending A Tube A Full 360 Degrees

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  • #16
    Why would you need a "tire changer" for a dirt bike?
    All you need is two tire spoons. Takes 5 minutes.

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    • #17
      Well Donald,
      Dirt bike wheels have bearings that need to be protected from dirt and sand.
      This tyre changer suspends the wheel above all of that while I work the tyre levers.

      Ji
      Grip it and Rip it

      Comment


      • #18
        That is what I was thinking...

        ...and keeps the grease off the carpet in the trailer...nice project, I just had to change the tube on the front of my CRF450X over the weekend...Pinch flat. Then I proceeded to spit myself off the back after the repair and now "my right wheel" needs repair...OUCH.
        MillerMatic 211 Auto-set w/MVP
        Just For Home Projects.

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        • #19
          Hi Doughboyracer,
          You normally get a good run of no flats and then you get 3 in a row.
          Rocks, flat landings and underinflated tyres seem to be the big killers of tubes.
          Uses are tube repair or replacement, tyre change to get better grip, and on top of all that is rim and spoke service.
          A tyre changer is a handy tool.
          I have a commercial one that is made of steel.
          It is heavey and large.
          My ali one is light weight and takes up 1/3 the space in the pick up.

          Ji
          Grip it and Rip it

          Comment


          • #20
            Originally posted by Jigantor View Post
            Hi Doughboyracer,
            You normally get a good run of no flats and then you get 3 in a row.
            Rocks, flat landings and underinflated tyres seem to be the big killers of tubes.
            Uses are tube repair or replacement, tyre change to get better grip, and on top of all that is rim and spoke service.
            A tyre changer is a handy tool.
            I have a commercial one that is made of steel.
            It is heavey and large.
            My ali one is light weight and takes up 1/3 the space in the pick up.

            Ji
            So for the uninformed of us that don't do this but are curious, do you make these to fit on the rim (same diameter) or on the spokes at the rim so that the wheel won't slide off the stand when levering? is there hold downs? perhaps you could put a rim on as if changing snap a pic to show us non-dirt guys how this works? thanks

            Comment


            • #21
              Hi dumb as a stump,
              The spokes are supported on the ring tube.
              The ring tube has to have the right diameter so the drive sprocket and or the brake disc clears it. This unit has to support both the front and rear wheels.

              I have attached some images of my commercial steel unit in action.


              Ji
              Attached Files
              Grip it and Rip it

              Comment


              • #22
                You are cheating...

                Three spoons and a plastic rim guard...lol
                I was just telling myself I need a third spoon after needing to pul out a screw driver to get started over the weekend... What do you do when out on the trail?
                MillerMatic 211 Auto-set w/MVP
                Just For Home Projects.

                Comment


                • #23
                  Hi Doughboyracer,
                  I have not had a major puncture on the trail yet, in fact I have not had a puncture on any track or trail yet.
                  I have fixed plenty of punctures on the trail.
                  I carry 3 spoons, a puncture repair kit and an air pump in my camel back.
                  So far last year I pumped up 4 tyres with my pump while at the refueling stop for other riders I had never met before.
                  This year I was at a motocross track with large table top jumps and had to replace a tube for another guy I had never met.
                  Our bikes are serviced after every ride and a check list is used before every new ride.
                  Any new rider that joins our camp we totally go over their bikes for the basics so there will be no mechanical failures on the trail. So far this policy has worked, because no one wants to push a bike 60 kilometers through the bush back to camp.

                  Ji
                  Grip it and Rip it

                  Comment


                  • #24
                    Would you...

                    ...care to post the check list that you use? That is a really good idea. I try to go over the major points but feel like I am missing some basic things in my walk through.
                    MillerMatic 211 Auto-set w/MVP
                    Just For Home Projects.

                    Comment


                    • #25
                      Check list,

                      Air Filter
                      Fuel
                      Fuel filter
                      fuel tap
                      Clutch cable smooth
                      Throttle cable smooth and snaps back
                      Grips are not sliding
                      Handle bar ends plugged (This is for friends)
                      Foot pegs tight and snap back
                      Spokes all tight
                      Tyres pumped up
                      Rim locks tight
                      Fork visual
                      Shock visual
                      All visible bolts tight
                      Axles tight
                      Chain tensioned
                      Chain link
                      Chain oiled spray on
                      Engine base gasket and carb manifold test
                      Engine oil level (changed after every 3 rides)
                      Engine hour meter
                      Radiator fluid level
                      Carb jetting (if cold)
                      Pull exhaust plug out
                      Check for any leaking fluids
                      Spray plastics with silicone spray (if track muddy)

                      Set up controls for track (if required)
                      Set up shock and forks for track (if required)
                      Adjust tyre air pressure for track (if required)


                      This sounds like a lot but as soon as we get back from our last ride the bikes are cleaned and the check list begins.

                      Ji
                      Grip it and Rip it

                      Comment


                      • #26
                        Got it...

                        ...thanks. Some I was doing, some I hadn't thought of.
                        MillerMatic 211 Auto-set w/MVP
                        Just For Home Projects.

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