DT125R FORUM

    • Register
    • Login
    • Search
    • Recent
    • Tags
    • Popular
    • Users
    • Groups

    DT gearing and safe cruising speeds

    Other
    4
    7
    579
    Loading More Posts
    • 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.
    • Glynn123
      Glynn123 last edited by

      After my winter rebuild I've took my DTRE for an mot, all went great on the 40 mile round trip but I'm just wondering on what's a safe cruising speed revs wise. I've got the enduro sprocket on the rear with my Supermoto wheels, front sprockets a 16t and I think the rears 49? I done some research and aparently standard DTX rear sprocket is 47t?
      The bike cruised okay and the ypvs valve was just opening at around 50mph, so I reckon at 60 I'll be sitting at 8000 ish revs? Is this a safe cruising revs for a long run or should I raise my gearing to suit?

      1 Reply Last reply Reply Quote 0
      • Calum
        Calum last edited by Calum

        Yeah that's fine at 8K RPM, just blip the throttle now and then and don't shut it off when slowing down.

        I used to ride daily on dual carriage ways at 70 with no issues. Bikes are great in stock trim, once you modify you then start to run the risk for reliability, but provided it's stock that'll be sound.

        Always Originate, Never Pirate!

        Glynn123 1 Reply Last reply Reply Quote 0
        • Glynn123
          Glynn123 @Calum last edited by

          @calum all standard apart from Romeu pipe and upjet mate, cheers 👌

          1 Reply Last reply Reply Quote 0
          • Irongamer727
            Irongamer727 last edited by

            16 front and 57 back is stock from what I know. That's what my dtx has.

            Glynn123 1 Reply Last reply Reply Quote 0
            • Glynn123
              Glynn123 @Irongamer727 last edited by

              @irongamer727 Yeah thats what I read online, ive got a 16t front and 49t rear, seems to cruise good at 50 odd but 60 just felt like it was screaming a little with the pv open, but I guess these things can take it.

              1 Reply Last reply Reply Quote 0
              • J
                Jens Eskildsen last edited by

                I always gear mine as heavy as possible (without sacrifising acceleration in 6th gear) for extended road-use, to keep the revs down.
                Also, it sucks to ride in the rpm range where the ypvs opens and closes.
                I have 520 sprockets, so they dont compare to the stocker. But 16/49sounds a bit like a 520 conversion? 16/59 is about stock as I recall, so going down 10 teeth in stock size is a big step if thats what you've done

                Stock gearing is actually quite good for a bit of everything.

                I wouldnt run mine at 8000rpms day ina nd day out, but the bike will probably handle it just fine

                1 Reply Last reply Reply Quote 0
                • Glynn123
                  Glynn123 last edited by

                  Yeah I've made a mistake haha, I have 59t rear and 16t front, it's very low geared so ordered a 17t front sprocket for a test since it was only £4 and I shouldn't have to cut the chain, will see how it goes but the bike pulls very strong up to 140kmh right now and wheelies on throttle sitting forward in 1st so hopefully it should have the grunt to pull enough in 6th with new sprocket.

                  1 Reply Last reply Reply Quote 0
                  • First post
                    Last post