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World of Sprockets!

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  • Re: World of Sprockets!

    Originally posted by ayrus View Post
    I'm planning to get a 14 or 15 teeth front sprocket that suits the .520 chain for my RTR 200. What will be the cost? (not worth if it costs more than 500 bucks) (also I want the front sprocket only. I don't want to waste money by buying 2 sprockets and chain set)
    Stock setup is 13 front, 45 rear.
    Is there any adverse effect of overgearing??(apart from a drop in acceleration)
    Edit: I've found that the NS 200, RS 200 and Duke 200 have 14T front sprockets and the FZ25 has 15T front sprocket. Are they available separately? Any idea of the price?
    Try the 14 T front sprocket from P220 DTSi, or older model, if you're sure the chain pitch is .520 only. This model's spares would be cheaper too.

    DO NOT PURCHASE DIRECTLY, first go to Bajaj SVC, try getting hold of an old front sprocket and try fitting it first... If it fits ok, purchase a new one and you're good to go.

    Mostly, the service center sells a kit together and this kit (2 sprockets+chain) combined kit may get a little expensive... Maybe between Rs. 1200-1500 or so.

    One way is to give the 36/37 tooth rear sprocket to someone else and share the cost... Another way is to go to a local market and ask for genuine Rolon sprocket and tell them to sell it individually.
    Maybe if you offer Rs. 700 or so, they might agree to take the risk of keeping the chain and rear spr... that is, if they can sell it.

    There are no adverse effects of overgearing if done properly and if the new kits fit ok.

    The petrol engine is accustomed to carry loads, and in India we even overburden it and ride upwards on a slope, nothing happens.
    Plus, if you ever feel a gear is too high, just shift a gear down, its the same thing technically.
    Just make sure the 1st gear doesn't turn out too tall to pull in some situations. (which it shouldn't, on this setup. Read on...)

    You're just doing a small change, no big deal. 45/13 is 3.461 and your new setup is 45/14 which is 3.214. Little overgeared.
    No big deal, but it will be noticeable. Do let me know how it turns out.


    NOTE: Skip trying for the FZ25 front, 15T would be a bit heavy unless you've modified the engine for more power...



    Originally posted by ashwinprakas View Post
    @Samarth 619 Hey bro, do update the OP that it isn't advisable to use the ZMA rear sprocket on the P220 unless the owner is fine with replacing the studs(12x4) everytime the sprocket needs to be changed.
    The ZMA rear sprocket is a super tight fix on the P220's hub due to smaller sprocket holes compared to stock, so over time, especially on installation and uninstallation the threads on the studs get compromised.
    Just swapped back to the stock rear sprocket for some highway riding and figured things out the hard way.

    Cheers, A.P.
    Done bro, Thank you so much.



    PLEASE NOTE ALL: FAQ post added on Page 1. Check it out...
    Last edited by Samarth 619; 10-26-2018, 05:29 PM.
    ---
    Brotherhood, Rules, Freedom. Xbhp.
    Indian riding = Alertness, Anticipation and Adjustment.

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    • Re: World of Sprockets!

      Originally posted by ayrus View Post
      I'm planning to get a 14 or 15 teeth front sprocket that suits the .520 chain for my RTR 200. What will be the cost? (not worth if it costs more than 500 bucks) (also I want the front sprocket only. I don't want to waste money by buying 2 sprockets and chain set)
      Originally posted by Samarth 619 View Post
      Try the 14 T front sprocket from P220 DTSi, or older model, if you're sure the chain pitch is .520 only. This model's spares would be cheaper too.
      Part Number: DV101048

      Rs. 162/-

      14T Front Sprocket, the exact same one seen on all motorcycles even remotely related to Bajaj with a .520 pitch setup.
      Motorcycling Experience:
      2000 ~ 2017 Y2K Kinetic Zoom (Disposed at 15k)
      2011 ~ 2015 Hero Honda Karizma R (Sold at 56.5k)
      2013 ~ 2014 Bajaj Discover 100 4G (Sold at 16.5k)
      2015 ~ 2017 TVS Wego (Totaled at 18k)
      2015 - Bajaj Pulsar 220F (Currently 31k) < Garage Queen!
      2017 - Bajaj CT100B (Currently 21k) < 'Golden Quadrilateral' Runner!

      The Ride was Good, but Life is short, spend it Wisely!
      Adios Comrades!
      A.P. 2018

      Comment


      • Re: World of Sprockets!

        Originally posted by Samarth 619 View Post
        Try the 14 T front sprocket from P220 DTSi, or older model, if you're sure the chain pitch is .520 only. This model's spares would be cheaper too.

        DO NOT PURCHASE DIRECTLY, first go to Bajaj SVC, try getting hold of an old front sprocket and try fitting it first... If it fits ok, purchase a new one and you're good to go.

        Mostly, the service center sells a kit together and this kit (2 sprockets+chain) combined kit may get a little expensive... Maybe between Rs. 1200-1500 or so.

        One way is to give the 36/37 tooth rear sprocket to someone else and share the cost... Another way is to go to a local market and ask for genuine Rolon sprocket and tell them to sell it individually.
        Maybe if you offer Rs. 700 or so, they might agree to take the risk of keeping the chain and rear spr... that is, if they can sell it.

        There are no adverse effects of overgearing if done properly and if the new kits fit ok.

        The petrol engine is accustomed to carry loads, and in India we even overburden it and ride upwards on a slope, nothing happens.
        Plus, if you ever feel a gear is too high, just shift a gear down, its the same thing technically.
        Just make sure the 1st gear doesn't turn out too tall to pull in some situations. (which it shouldn't, on this setup. Read on...)

        You're just doing a small change, no big deal. 45/13 is 3.461 and your new setup is 45/14 which is 3.214. Little overgeared.
        No big deal, but it will be noticeable. Do let me know how it turns out.


        NOTE: Skip trying for the FZ25 front, 15T would be a bit heavy unless you've modified the engine for more power...




        Done bro, Thank you so much.



        PLEASE NOTE ALL: FAQ post added on Page 1. Check it out...
        Originally posted by ashwinprakas View Post
        Part Number: DV101048

        Rs. 162/-

        14T Front Sprocket, the exact same one seen on all motorcycles even remotely related to Bajaj with a .520 pitch setup.
        Thanks for the input guys.

        I've found that I can't fix the FZ25 sprocket as it has a different shaft design. So it is out of consideration.

        Coming to Bajaj sprockets, based on the images obtained from the internet, I feel that the .520 14t sprockets can be fitted on the 200 4v. (not sure though)

        But the big catch here is that the speedo of the Apache 200 is connected to the output shaft of the engine and hence the sprocket change will screw up all the speedo and odo readings. (I came to know about that only a few days ago)

        Keeping the above mentiond facts in mind and also the fact that I'm actually happy with the stock setup of the bike, I've postponed the idea of the sprocket switch to the not-so-near future.

        I've editied the previous post about these sprocket infos.
        https://spkreviews.home.blog/index/

        Comment


        • Re: World of Sprockets!

          [MENTION=96476]ayrus[/MENTION] apart from the difference in shaft design, note that the FZ25 has a .428 kit, so anyway it would have been pointless.
          Last edited by Shashank K R; 10-28-2018, 03:42 AM.

          Comment


          • Re: World of Sprockets!

            Originally posted by Shashank K R View Post
            [MENTION=96476]ayrus[/MENTION] apart from the difference in shaft design, note that the FZ25 has a .428 kit, so anyway it would have been pointless.
            Yeah bro..... That too..... Eariler I thought that it'd have a .520 chain because it is a 250 cc bike. I don't know why Yamaha gave .428 chain for a 250 cc bike which is even the 100 cc motorcycles have. Many users complain of chain wear.
            https://spkreviews.home.blog/index/

            Comment


            • Re: World of Sprockets!

              Hello guys...i want to overgear my fz25. Can anyone suggest me 43 or 42 teeth sprocket from other manufactures which will be a direct fit?

              Comment


              • Re: World of Sprockets!

                Originally posted by Dr.Manish View Post
                Hello guys...i want to overgear my fz25. Can anyone suggest me 43 or 42 teeth sprocket from other manufactures which will be a direct fit?
                How many bolts does the rear sprocket have?? Also the number of teeth in the stock sprocket??
                https://spkreviews.home.blog/index/

                Comment


                • Re: World of Sprockets!

                  Originally posted by ayrus View Post
                  How many bolts does the rear sprocket have?? Also the number of teeth in the stock sprocket??
                  The rear sprocket has 6 holes and its a 46 teeth sprocket

                  Comment


                  • Re: World of Sprockets!

                    Originally posted by Dr.Manish View Post
                    The rear sprocket has 6 holes and its a 46 teeth sprocket
                    Not much bikes use a .428 sprocket with 6 holes. So the choices will be limited I guess. You can try the sprocket of the R15 v1. It has 42 teeth.

                    You can refer to the opening post of this thread. You may find something useful.
                    https://spkreviews.home.blog/index/

                    Comment


                    • Re: World of Sprockets!

                      Originally posted by ayrus View Post
                      Not much bikes use a .428 sprocket with 6 holes. So the choices will be limited I guess. You can try the sprocket of the R15 v1. It has 42 teeth.

                      You can refer to the opening post of this thread. You may find something useful.
                      Will try. Thnx fr the help[emoji4]

                      Comment


                      • Re: World of Sprockets!

                        Originally posted by Dr.Manish View Post
                        Will try. Thnx fr the help[emoji4]
                        I feel 42t sprocket will be too much overgearing from a 46t sprocket. You may end up riding in 1 gear lower at a given speed or lugging the engine. Take this into consideration.
                        https://spkreviews.home.blog/index/

                        Comment


                        • Re: World of Sprockets!

                          Originally posted by ayrus View Post
                          I feel 42t sprocket will be too much overgearing from a 46t sprocket. You may end up riding in 1 gear lower at a given speed or lugging the engine. Take this into consideration.
                          Actually i want to maintain a higher cruise speed without putting much stress on the engine, because fz25 feels a bit stressed in triple digit speeds. What size would you suggest?

                          Comment


                          • Re: World of Sprockets!

                            I guess the Pulsar 150 UG2 has a 44t sprocket with 6 mounting holes. Verify it though.
                            https://spkreviews.home.blog/index/

                            Comment


                            • Re: World of Sprockets!

                              Originally posted by Dr.Manish View Post
                              Actually i want to maintain a higher cruise speed without putting much stress on the engine, because fz25 feels a bit stressed in triple digit speeds. What size would you suggest?
                              No problem doing it. but keep one thing in mind , dont lug the engine too much because at stock setup the rpm drop to higher gear will be 1k rpm max but after overgearing it may go upto 2k rpm .

                              Talking about my experience , i have a ns200. stock is 14T39 , so i dropped the driven sprocket to 36T to make it overgear . result was good to some extent but 6th gear was not usable till 70kmph , after that at 5k rpm 80kmph was too great . but city ride & with pillion ride got hampered. frequent gear changes etc
                              so i reverted to stock again .

                              Comment


                              • Re: World of Sprockets!

                                Originally posted by vvk1999 View Post
                                No problem doing it. but keep one thing in mind , dont lug the engine too much because at stock setup the rpm drop to higher gear will be 1k rpm max but after overgearing it may go upto 2k rpm .

                                Talking about my experience , i have a ns200. stock is 14T39 , so i dropped the driven sprocket to 36T to make it overgear . result was good to some extent but 6th gear was not usable till 70kmph , after that at 5k rpm 80kmph was too great . but city ride & with pillion ride got hampered. frequent gear changes etc
                                so i reverted to stock again .
                                Okk...will keep that in mind. Will update you on the effects after changing the sprocket. Thanx for the support man. Really appreciate it

                                Comment

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