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DT125R FORUM

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Rear wheel

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  • autovictorA autovictor

    @jonne123 probably means the component i'm touching with the screwdriver

    https://imgur.com/gallery/DLUbfd8

    declanD Offline
    declanD Offline
    declan
    wrote on last edited by
    #12

    @autovictor never seen those on a dt before

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    • J Offline
      J Offline
      jonne123
      wrote on last edited by
      #13

      Ok Do these fit dtr the seller said they are maybe aprilia rs 125 rims
      what modifications maybe excel rims because of red text

      IMG_0271.JPG

      IMG_0270.JPG

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      • CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #14

        They look like 2005-2005 RS 125 Rims.

        They do not fit without modification.

        Different brakes, different swingarm different forks. All needs modifying.

        Always Originate, Never Pirate!

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        • J Offline
          J Offline
          jonne123
          wrote on last edited by jonne123
          #15

          Different forks? Swingarm? What can you recommend and most cheaply?

          CalumC 1 Reply Last reply
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          • J jonne123

            Different forks? Swingarm? What can you recommend and most cheaply?

            CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #16

            @jonne123 Yeah you know, the Aprilia has completely different geometry to the DTR. So it's going to need fabrication.

            The front and rear wheel need to be aligned. The front and rear sprockets need to align. The wheels need to be centralised. Cause it's from a completely different machine.

            Always Originate, Never Pirate!

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            • J Offline
              J Offline
              jonne123
              wrote on last edited by
              #17

              maybe spacers like the has my uncles friend is machinist

              CalumC 1 Reply Last reply
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              • CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #18

                If money is a concern, stick with what you got and put some decent tyres on it.

                Even Excel rims are expensive and require work. So there is no one easy solution.

                The easiest way to do it would be to buy some nice and expensive Excel rims, and lace up your hubs to them That way you retain the original brakes and spacers and geometry with SM Rims.

                The DTX solution, you need forks, brakes and wheels. These were hard to come by new, now it's practically a nightmare.

                Always Originate, Never Pirate!

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                • J jonne123

                  maybe spacers like the has my uncles friend is machinist

                  CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by Calum
                  #19

                  @jonne123 If you don't mind fabricating parts, then you'll need spacers and the hub carriers modified to take the bigger brakes. and a bracket made to mount the brakes to the wheels.

                  Can see the work required in my DTRE build thread as I run RS125 wheels on my DTR.

                  alt text

                  Always Originate, Never Pirate!

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                  • J Offline
                    J Offline
                    jonne123
                    wrote on last edited by
                    #20

                    I know i need brake caliper upradge nad change just brake leg on right. on rear put the wheel backwars

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                    • J Offline
                      J Offline
                      jonne123
                      wrote on last edited by
                      #21

                      can you link the thread

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                      • CalumC Offline
                        CalumC Offline
                        Calum
                        wrote on last edited by
                        #22

                        No, you need to centralise the wheels, rotate the tyres and also line up the front and rear sprockets. Otherwise you'll chew through rear sprocket carrier bearings in no time at all!

                        Always Originate, Never Pirate!

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                        • CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #23

                          https://dt125r.co.uk/topic/15/the-leviathan-project/127

                          Always Originate, Never Pirate!

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                          • J Offline
                            J Offline
                            jonne123
                            wrote on last edited by jonne123
                            #24

                            but the axle radious is the same? can i keep front brake caliper at left side?

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                            • J Offline
                              J Offline
                              jonne123
                              wrote on last edited by
                              #25

                              does stock rs hub carries fit?

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                              • CalumC Offline
                                CalumC Offline
                                Calum
                                wrote on last edited by
                                #26

                                No nothing fits, it all has to be fabricated. Even the spindles are different sizes.

                                The front spindle is too small. Rear spindle was okay.

                                Always Originate, Never Pirate!

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                                • CalumC Offline
                                  CalumC Offline
                                  Calum
                                  wrote on last edited by Calum
                                  #27

                                  If you have access to a machinist, the cost is minimal. But it all adds up. Hours on the lathe and precise measurements were necessary to get all the stars to align. I had to shim the rear sprocket to get it to fall inline with the front.

                                  When I took the bike in to have the tyres replaced. They omitted the shims and the rear sprocket carrier bearing collapsed shortly after. So it does have to be on point.

                                  Always Originate, Never Pirate!

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                                  • J Offline
                                    J Offline
                                    jonne123
                                    wrote on last edited by jonne123
                                    #28

                                    And in summer i go to machine shop for summerwork so i can make them afterwork.

                                    And are the rims same size if you can give some measurements of the parts?

                                    How about the speedo?

                                    Does the ride quality increase

                                    declanD 1 Reply Last reply
                                    0
                                    • J jonne123

                                      And in summer i go to machine shop for summerwork so i can make them afterwork.

                                      And are the rims same size if you can give some measurements of the parts?

                                      How about the speedo?

                                      Does the ride quality increase

                                      declanD Offline
                                      declanD Offline
                                      declan
                                      wrote on last edited by
                                      #29

                                      @jonne123 WR 125 wheels fit

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                                      • J Offline
                                        J Offline
                                        jonne123
                                        wrote on last edited by jonne123
                                        #30

                                        But could buy those for 20€

                                        So 20€ for skf wheel bearings

                                        • front brake disc

                                        -Rear sprocket

                                        -speedometer drive

                                        • front caliper

                                        -fabrication metal

                                        So i would image around

                                        200€

                                        So not that bad

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                                        • declanD Offline
                                          declanD Offline
                                          declan
                                          wrote on last edited by
                                          #31

                                          it very rarely is as easy as you expect but i suppose if you follow callums build thread in relation to your wheels you will be okay

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