Skip to content
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
Skins
  • Light
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (Slate)
  • No Skin
Collapse
Brand Logo

DT125R FORUM

  1. Home
  2. Technical Zone
  3. Suspension
  4. Progressive fork springs?

Progressive fork springs?

Scheduled Pinned Locked Moved Suspension
22 Posts 6 Posters 2.3k Views
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • CalumC Calum

    @SpookDog What was the matter with these?

    https://www.ebay.co.uk/itm/153500752804

    alt text

    S Offline
    S Offline
    SpookDog
    wrote on last edited by SpookDog
    #9

    @Calum

    Until I know for definite that the 2004>RE has 505mm springs I can’t be sure about them...

    Early Dtr’s had shorter springs than the later ones, apparently...

    CalumC 1 Reply Last reply
    0
    • S SpookDog

      @Calum

      Until I know for definite that the 2004>RE has 505mm springs I can’t be sure about them...

      Early Dtr’s had shorter springs than the later ones, apparently...

      CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #10

      @SpookDog But springs compress...

      Can you not just email then and ask?

      I remember the DTR springs are woeful, so this would most likely be an upgrade.

      Always Originate, Never Pirate!

      S 1 Reply Last reply
      0
      • CalumC Calum

        @SpookDog But springs compress...

        Can you not just email then and ask?

        I remember the DTR springs are woeful, so this would most likely be an upgrade.

        S Offline
        S Offline
        SpookDog
        wrote on last edited by SpookDog
        #11

        @Calum

        I actually didn’t think to contact them 🥴

        Waiting on a fleabay reply now. I asked about length & width and rating...

        HOTSHOT IIIH CalumC 2 Replies Last reply
        0
        • S SpookDog

          @Calum

          I actually didn’t think to contact them 🥴

          Waiting on a fleabay reply now. I asked about length & width and rating...

          HOTSHOT IIIH Offline
          HOTSHOT IIIH Offline
          HOTSHOT III
          wrote on last edited by
          #12

          @SpookDog According to Haynes:

          3DB1 ('88 round slide carb model) spring free length 478mm, service limit 473mm

          3RN1 ('89 onward) spring free length 503mm, service limit 468mm

          No mention of forks in the separate chapter for the '97 onwards DTR and DTX so I can only assume the springs are identical to 3RN1 (although I'd be interested if this is the case particularly regarding the DTX)

          markus.wM S 2 Replies Last reply
          0
          • S SpookDog

            @Calum

            I actually didn’t think to contact them 🥴

            Waiting on a fleabay reply now. I asked about length & width and rating...

            CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #13

            @SpookDog And according to fowlers the springs between the two models are the same.

            https://www.fowlersparts.co.uk/parts/4189524/dt125re-1d02-2005-030-a/front-fork

            https://www.fowlersparts.co.uk/parts/4159458/dt125r-3rme-1999-060-a/front-fork

            SPRING, FRONT FORK
            3BN-23141-01

            Always Originate, Never Pirate!

            markus.wM 1 Reply Last reply
            0
            • HOTSHOT IIIH HOTSHOT III

              @SpookDog According to Haynes:

              3DB1 ('88 round slide carb model) spring free length 478mm, service limit 473mm

              3RN1 ('89 onward) spring free length 503mm, service limit 468mm

              No mention of forks in the separate chapter for the '97 onwards DTR and DTX so I can only assume the springs are identical to 3RN1 (although I'd be interested if this is the case particularly regarding the DTX)

              markus.wM Offline
              markus.wM Offline
              markus.w
              wrote on last edited by
              #14

              @HOTSHOT-III I believe the DTX has shorter stiffer forks.

              1 Reply Last reply
              1
              • CalumC Calum

                @SpookDog And according to fowlers the springs between the two models are the same.

                https://www.fowlersparts.co.uk/parts/4189524/dt125re-1d02-2005-030-a/front-fork

                https://www.fowlersparts.co.uk/parts/4159458/dt125r-3rme-1999-060-a/front-fork

                SPRING, FRONT FORK
                3BN-23141-01

                markus.wM Offline
                markus.wM Offline
                markus.w
                wrote on last edited by
                #15

                @Calum yes they are identical. Just the 1988 early model are different as are the DTX. R and RE are the same.

                1 Reply Last reply
                0
                • HOTSHOT IIIH HOTSHOT III

                  @SpookDog According to Haynes:

                  3DB1 ('88 round slide carb model) spring free length 478mm, service limit 473mm

                  3RN1 ('89 onward) spring free length 503mm, service limit 468mm

                  No mention of forks in the separate chapter for the '97 onwards DTR and DTX so I can only assume the springs are identical to 3RN1 (although I'd be interested if this is the case particularly regarding the DTX)

                  S Offline
                  S Offline
                  SpookDog
                  wrote on last edited by SpookDog
                  #16

                  @HOTSHOT-III
                  That’s a typo for the 503mm spring wear limit, it’s supposed to be 499mm. Hell of a wear limit otherwise!.
                  I read somewhere that dtx springs are 515mm and progressive as standard. Probably the same as TZR springs if the info was right...

                  Got a reply from fleabay: not in UK stock, 40-45 day order wait. Springs are 515mm x 3.9mm and are rated for 65-110kg weight riders...

                  Sounds perfect, just have to trim the spring spacers by 12mm. Shame about the wait!...

                  S 1 Reply Last reply
                  2
                  • S SpookDog

                    @HOTSHOT-III
                    That’s a typo for the 503mm spring wear limit, it’s supposed to be 499mm. Hell of a wear limit otherwise!.
                    I read somewhere that dtx springs are 515mm and progressive as standard. Probably the same as TZR springs if the info was right...

                    Got a reply from fleabay: not in UK stock, 40-45 day order wait. Springs are 515mm x 3.9mm and are rated for 65-110kg weight riders...

                    Sounds perfect, just have to trim the spring spacers by 12mm. Shame about the wait!...

                    S Offline
                    S Offline
                    SpookDog
                    wrote on last edited by SpookDog
                    #17

                    Cheers for the info guys, it all helps!...

                    Ordered some springs, just in it for the long wait now 🙄

                    If anyone has any fork bottoms, or whole forks, please let me know. I don’t have time to powder coat mine when I rebuild them...

                    MadGyverM 1 Reply Last reply
                    0
                    • S SpookDog

                      Cheers for the info guys, it all helps!...

                      Ordered some springs, just in it for the long wait now 🙄

                      If anyone has any fork bottoms, or whole forks, please let me know. I don’t have time to powder coat mine when I rebuild them...

                      MadGyverM Offline
                      MadGyverM Offline
                      MadGyver
                      wrote on last edited by
                      #18

                      @SpookDog
                      DT200R springs are 548mm.Have them in mine with the air adjust cap's.

                      I need my tools and a pile of junk.....

                      S 1 Reply Last reply
                      0
                      • MadGyverM MadGyver

                        @SpookDog
                        DT200R springs are 548mm.Have them in mine with the air adjust cap's.

                        S Offline
                        S Offline
                        SpookDog
                        wrote on last edited by SpookDog
                        #19

                        @MadGyver

                        What bike do you have them fitted in?...

                        PS thank you for the info!...

                        MadGyverM 1 Reply Last reply
                        0
                        • S SpookDog

                          @MadGyver

                          What bike do you have them fitted in?...

                          PS thank you for the info!...

                          MadGyverM Offline
                          MadGyverM Offline
                          MadGyver
                          wrote on last edited by
                          #20

                          @SpookDog In my DT125.

                          I need my tools and a pile of junk.....

                          S 1 Reply Last reply
                          0
                          • MadGyverM MadGyver

                            @SpookDog In my DT125.

                            S Offline
                            S Offline
                            SpookDog
                            wrote on last edited by
                            #21

                            @MadGyver

                            Did you just delete the spacers completely? Any noticeable improvement? Also are the springs linear or progressive?...
                            Cheers bud!...

                            MadGyverM 1 Reply Last reply
                            0
                            • S SpookDog

                              @MadGyver

                              Did you just delete the spacers completely? Any noticeable improvement? Also are the springs linear or progressive?...
                              Cheers bud!...

                              MadGyverM Offline
                              MadGyverM Offline
                              MadGyver
                              wrote on last edited by
                              #22

                              @SpookDog said in Progressive fork springs?:

                              @MadGyver

                              Did you just delete the spacers completely? Any noticeable improvement? Also are the springs linear or progressive?...
                              Cheers bud!...

                              Didn't remove anything as memory serves.I had 2 forks,one DT125 and later one DT200,I had purchased every part to rebuild the 125 before having the 200.Compared everything and found to be the same except the springs.So I used the springs and the air adjust caps from the 200 forks.
                              They don't bottom easy as far I tested them and seem better for the SM style than the 125 springs,but soft to go trail ride.

                              I need my tools and a pile of junk.....

                              1 Reply Last reply
                              0
                              Reply
                              • Reply as topic
                              Log in to reply
                              • Oldest to Newest
                              • Newest to Oldest
                              • Most Votes


                              • Login

                              • Don't have an account? Register

                              • Login or register to search.
                              • First post
                                Last post
                              0
                              • Recent
                              • Tags
                              • Popular
                              • Users
                              • Groups