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DT125R FORUM

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  2. General Discussion
  3. Yz 125 or yz 250?

Yz 125 or yz 250?

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  • CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #2

    What you using it for I guess is my biggest question.

    A 250 is much better for the road, a 125 makes you work for it on the track.

    Both are superb bikes, both need meticulous attention and I wouldn't want to scrimp on either. You're talking 40 hour engines here then a rebuild.

    A 125 is stupendous fun around a track, a 250 is easier going but still a cracking bike.

    Always Originate, Never Pirate!

    declanD 1 Reply Last reply
    0
    • CalumC Calum

      What you using it for I guess is my biggest question.

      A 250 is much better for the road, a 125 makes you work for it on the track.

      Both are superb bikes, both need meticulous attention and I wouldn't want to scrimp on either. You're talking 40 hour engines here then a rebuild.

      A 125 is stupendous fun around a track, a 250 is easier going but still a cracking bike.

      declanD Offline
      declanD Offline
      declan
      wrote on last edited by
      #3

      @calum it would be more enduro and field riding how does a 450 tie into the mix have you tried one?

      CalumC 1 Reply Last reply
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      • declanD declan

        @calum it would be more enduro and field riding how does a 450 tie into the mix have you tried one?

        CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #4

        @declan Nah I haven't bud. These aren't really my sorts of bikes.

        Scrim would be able to give a much better opinion on what works for enduro.

        What I said above applies to enduro, the 250 is going to be an easier ride, but the 125 is going to be balls lit fun!

        Always Originate, Never Pirate!

        declanD 1 Reply Last reply
        0
        • CalumC Calum

          @declan Nah I haven't bud. These aren't really my sorts of bikes.

          Scrim would be able to give a much better opinion on what works for enduro.

          What I said above applies to enduro, the 250 is going to be an easier ride, but the 125 is going to be balls lit fun!

          declanD Offline
          declanD Offline
          declan
          wrote on last edited by
          #5

          @calum guess it’s the 125 to look forward to then since they’re plenty enough as it is lol

          1 Reply Last reply
          0
          • CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #6

            Yeah that's nice.

            Always Originate, Never Pirate!

            1 Reply Last reply
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            • MiniaM Offline
              MiniaM Offline
              Minia
              wrote on last edited by Minia
              #7

              I'll put it simply, a YZ engine is bullet proof. Practically the same engine between the 125 and 250 and both are stupidly reliable. If you went by the book, you'd be taking apart the engine for inspection/rebuild after every race or "sortie". Which obviously not many people outside of a professional enviroment do, so my general advice on this is simple. If you ride smooth and with a good mixture, you should be getting about 60 hours on a top end. Both engines cost about the same to rebuild, the biggest difference is fuel consumption. You will be filling up more at petrol stations with a 250 than a 125 for sure. So it doesn't really matter when it comes to the technical aspect of it.

              However, for a more "childish" approach. You will have a LOT more fun on the 125 if you're planning to be popping wheelies, letting the back wheel slide etc. It is a much more childish bike in that regard than the 250 and is more nervous, but if you one day want to do some hill climbing and you stall, that 125 will not get going again unlike the 250. A 250 is a much better bike if you ride in an enduro environment, a 125 is for the fields/tracks.

              Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

              declanD 1 Reply Last reply
              2
              • MiniaM Minia

                I'll put it simply, a YZ engine is bullet proof. Practically the same engine between the 125 and 250 and both are stupidly reliable. If you went by the book, you'd be taking apart the engine for inspection/rebuild after every race or "sortie". Which obviously not many people outside of a professional enviroment do, so my general advice on this is simple. If you ride smooth and with a good mixture, you should be getting about 60 hours on a top end. Both engines cost about the same to rebuild, the biggest difference is fuel consumption. You will be filling up more at petrol stations with a 250 than a 125 for sure. So it doesn't really matter when it comes to the technical aspect of it.

                However, for a more "childish" approach. You will have a LOT more fun on the 125 if you're planning to be popping wheelies, letting the back wheel slide etc. It is a much more childish bike in that regard than the 250 and is more nervous, but if you one day want to do some hill climbing and you stall, that 125 will not get going again unlike the 250. A 250 is a much better bike if you ride in an enduro environment, a 125 is for the fields/tracks.

                declanD Offline
                declanD Offline
                declan
                wrote on last edited by
                #8

                @minia thanks that’s most helpful

                1 Reply Last reply
                0
                • DartyD Offline
                  DartyD Offline
                  Darty
                  wrote on last edited by Darty
                  #9

                  alt text

                  alt text

                  LOL. Depends what you do with the engine, racing a YZ250 45+hp.. Dont use a cheap Con Rod when you rebuild it! This happened to a mate's YZ250 at a race weekend.

                  Buy good, and look after it and it wont eat itself.

                  @declan I'm building a SM YZ125 AF, I'll let you know how that goes.

                  Keep it real

                  ZrakoZ MiniaM 2 Replies Last reply
                  2
                  • DartyD Darty

                    alt text

                    alt text

                    LOL. Depends what you do with the engine, racing a YZ250 45+hp.. Dont use a cheap Con Rod when you rebuild it! This happened to a mate's YZ250 at a race weekend.

                    Buy good, and look after it and it wont eat itself.

                    @declan I'm building a SM YZ125 AF, I'll let you know how that goes.

                    ZrakoZ Offline
                    ZrakoZ Offline
                    Zrako
                    wrote on last edited by
                    #10

                    @darty OMG 😨 that looks scary

                    1979 Jawa Mustang 50
                    2003 Gilera DNA 125 R.I.P
                    2015 Keeway TX 125 SM
                    2006 Yamaha DT 125 X

                    1 Reply Last reply
                    0
                    • J Offline
                      J Offline
                      Jens Eskildsen
                      wrote on last edited by
                      #11

                      Just needs a light hone and a fresh set of rings 😄

                      1 Reply Last reply
                      1
                      • DartyD Darty

                        alt text

                        alt text

                        LOL. Depends what you do with the engine, racing a YZ250 45+hp.. Dont use a cheap Con Rod when you rebuild it! This happened to a mate's YZ250 at a race weekend.

                        Buy good, and look after it and it wont eat itself.

                        @declan I'm building a SM YZ125 AF, I'll let you know how that goes.

                        MiniaM Offline
                        MiniaM Offline
                        Minia
                        wrote on last edited by
                        #12

                        @darty Jeebuz! That is bad ahahaha! Cheap rod? How many hours did that engine have, don't tell me it was a fresh rebuild?

                        Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

                        declanD 1 Reply Last reply
                        0
                        • MiniaM Minia

                          @darty Jeebuz! That is bad ahahaha! Cheap rod? How many hours did that engine have, don't tell me it was a fresh rebuild?

                          declanD Offline
                          declanD Offline
                          declan
                          wrote on last edited by
                          #13

                          @minia it’s so bad I don’t even think it was the cheap rods fault to an extent more of a manufactured fault very rare occurrence?

                          MiniaM 1 Reply Last reply
                          0
                          • declanD declan

                            @minia it’s so bad I don’t even think it was the cheap rods fault to an extent more of a manufactured fault very rare occurrence?

                            MiniaM Offline
                            MiniaM Offline
                            Minia
                            wrote on last edited by
                            #14

                            @declan Perhaps. KTM has been known for engines blowing up, especially on their 690. Unlucky mate.

                            Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

                            declanD 1 Reply Last reply
                            0
                            • MiniaM Minia

                              @declan Perhaps. KTM has been known for engines blowing up, especially on their 690. Unlucky mate.

                              declanD Offline
                              declanD Offline
                              declan
                              wrote on last edited by
                              #15

                              @minia I’ll agree with the older big bore bikes but I’m a fan boy and ktm is my dream bike so I can’t agree on the other bikes I think it’s a bit unfair since ktm Make arguably the best mx and enduro bikes

                              MiniaM CalumC 2 Replies Last reply
                              0
                              • declanD declan

                                @minia I’ll agree with the older big bore bikes but I’m a fan boy and ktm is my dream bike so I can’t agree on the other bikes I think it’s a bit unfair since ktm Make arguably the best mx and enduro bikes

                                MiniaM Offline
                                MiniaM Offline
                                Minia
                                wrote on last edited by
                                #16

                                @declan KTM certainly make some good bikes, but I view it more as a fashionable brand now than a business and it is not a brand I wish to be a part of. I've seen far more accidents and crashes on KTMs than I have on any other bike, from personal experience.

                                Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

                                1 Reply Last reply
                                0
                                • declanD declan

                                  @minia I’ll agree with the older big bore bikes but I’m a fan boy and ktm is my dream bike so I can’t agree on the other bikes I think it’s a bit unfair since ktm Make arguably the best mx and enduro bikes

                                  CalumC Offline
                                  CalumC Offline
                                  Calum
                                  wrote on last edited by
                                  #17

                                  @declan For me, it's the whole picture

                                  KTM's do make superb bikes, but you have to pay a premium for it. For the money, you can get a mint YZ or a CRISP DTR with lots of change. So you have to weigh it up. If money wasn't an objective.... but unfortunately it is. This is why I love the Aprilia's RS and MX. You're getting fantastic spec'd machines at a DTR price. So it's the best all round.

                                  Always Originate, Never Pirate!

                                  declanD 1 Reply Last reply
                                  0
                                  • CalumC Calum

                                    @declan For me, it's the whole picture

                                    KTM's do make superb bikes, but you have to pay a premium for it. For the money, you can get a mint YZ or a CRISP DTR with lots of change. So you have to weigh it up. If money wasn't an objective.... but unfortunately it is. This is why I love the Aprilia's RS and MX. You're getting fantastic spec'd machines at a DTR price. So it's the best all round.

                                    declanD Offline
                                    declanD Offline
                                    declan
                                    wrote on last edited by
                                    #18

                                    @calum but then the insurance is sky high atleast for me it is kind of like an Impreza rally car for 500 pound really cheap but that’s because the insurance is around 4K

                                    1 Reply Last reply
                                    0
                                    • Glynn123G Offline
                                      Glynn123G Offline
                                      Glynn123
                                      wrote on last edited by
                                      #19

                                      If you want the BEST stock enduro, road legal and incredibly cheaper than a KTM, Gas Gas EC or the later Beta rr enduros. As far as im aware a Gas Gas EC 125 from 2000 odd + makes as much power as a modern MX bike and are reliable engines, the stock components are incredible as standard too, the new models come with FMF pipe, v force reeds etc. I had a Gas Gas TXT Pro trials bike a few years ago and it was stunningly built, if they werent so rare id drop my DT for an EC in a heartbeat.

                                      MiniaM 1 Reply Last reply
                                      0
                                      • Glynn123G Glynn123

                                        If you want the BEST stock enduro, road legal and incredibly cheaper than a KTM, Gas Gas EC or the later Beta rr enduros. As far as im aware a Gas Gas EC 125 from 2000 odd + makes as much power as a modern MX bike and are reliable engines, the stock components are incredible as standard too, the new models come with FMF pipe, v force reeds etc. I had a Gas Gas TXT Pro trials bike a few years ago and it was stunningly built, if they werent so rare id drop my DT for an EC in a heartbeat.

                                        MiniaM Offline
                                        MiniaM Offline
                                        Minia
                                        wrote on last edited by
                                        #20

                                        @glynn123 Sorry, as much as GasGas may build good engines they aren't nearly as reliable anywhere else. And parts from their older bikes can be very tricky and costly to find, as a GasGas owner I really can't recommend it. Not unless it is their newer models.

                                        Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

                                        Irongamer727I 1 Reply Last reply
                                        0
                                        • MiniaM Minia

                                          @glynn123 Sorry, as much as GasGas may build good engines they aren't nearly as reliable anywhere else. And parts from their older bikes can be very tricky and costly to find, as a GasGas owner I really can't recommend it. Not unless it is their newer models.

                                          Irongamer727I Offline
                                          Irongamer727I Offline
                                          Irongamer727
                                          wrote on last edited by
                                          #21

                                          @minia my friend got a 2012 ec125 since he didn't enjoy his duke 125. The transmission blev up after the 3rd ride or something. The bill was huuuuuuge. The workshop going to fix it still has it and they are awaiting parts from gasgas. Obviously he don't know anything about engines or stuff. Not about how they should be driven or how they should be serviced.

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