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530 Chain Conversion - sprocket size & Chain length

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    #16
    Front and rear sprockets are both the same?


    Life is too short to ride an L.

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      #17
      Originally posted by Nessism View Post
      A 530 chain is the same width as a 630 chain. The 3 in the size reference 3/8 roller width. Since the width is the same you don't need to worry about offset sprockets UNLESS the original sprocket was offset. In the case of the GS1000 I believe it WAS offset, thus you need a spacer. I'm not sure about the 750 however.
      This makes sense to me. Unless the rear sprocket has a different offset, no spacer would be needed. But if the rear offset is different, what I can't understand is how a spacer on the outside of the front sprocket creates the necessary offset.

      A glance at the 750 and 1000 transmission diagrams suggests they're the same. Have to check them side by side when I get in front of my PC.
      Jordan

      1977 Suzuki GS750 (My first bike)
      2000 Kawasaki ZRX1100
      1973 BMW R75/5

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        #18
        When you put a 1000 engine in a 750 you don't have to do anything to the sprockets, they line up just fine.


        Life is too short to ride an L.

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          #19
          Originally posted by tkent02 View Post
          Front and rear sprockets are both the same?
          Yep, they list JTF-513.XX for the front and JTR-816.XX for the rear for all years of GSXR1100 (using the 530 conversion choices, since they also came with 630 for some years) and a couple of years of the 550 that I checked.


          Mark
          1982 GS1100E
          1998 ZX-6R
          2005 KTM 450EXC

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            #20
            The spacer is just for the outside of the front sprocket. It has nothing to do with the position of the sprocket it's just because it's thinner & the nut would no longer touch the sprocket without one (i.e. not enough thread).
            1980 GS1000G - Sold
            1978 GS1000E - Finished!
            1980 GS550E - Fixed & given to a friend
            1983 GS750ES Special - Sold
            2009 KLR 650 - Sold - gone to TX!
            1982 GS1100G - Rebuilt and finished. - Sold
            2009 TE610 - Dual Sporting around dreaming of Dakar.....

            www.parasiticsanalytics.com

            TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

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              #21
              Originally posted by salty_monk View Post
              The spacer is just for the outside of the front sprocket. It has nothing to do with the position of the sprocket it's just because it's thinner & the nut would no longer touch the sprocket without one (i.e. not enough thread).
              Ah yes, I'm starting to remember now. I knew there was a spacer involved.
              Ed

              To measure is to know.

              Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

              Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

              Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

              KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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                #22
                But why would you ever need to buy a spacer with a 630 to 530 conversion? If the sprokects are the same thickness, wouldn't you just reuse whatever spacer is currently between the nut and sprocket? And if there's no spacer from the factory, you shouldn't need one at all.

                I'll still trying to get the cover off the front sprocket. Forgot how hard the old "phillips" screws are to remove. Hoping another evening or two with PB Blaster will do the trick.
                Last edited by hannibal; 06-20-2016, 05:58 PM.
                Jordan

                1977 Suzuki GS750 (My first bike)
                2000 Kawasaki ZRX1100
                1973 BMW R75/5

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                  #23
                  I just did this conversion on my 78 Gs1000. The stock countershaft sprocket has a heavy shoulder on the side that faces away from the motor. That's what the spacer makes up for. If the screw heads are stripped, drill the heads off with a 15/64 drill bit.
                  Last edited by Guest; 06-27-2016, 07:35 PM.

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                    #24
                    Originally posted by hannibal View Post
                    But why would you ever need to buy a spacer with a 630 to 530 conversion? If the sprokects are the same thickness, wouldn't you just reuse whatever spacer is currently between the nut and sprocket? And if there's no spacer from the factory, you shouldn't need one at all.

                    I'll still trying to get the cover off the front sprocket. Forgot how hard the old "phillips" screws are to remove. Hoping another evening or two with PB Blaster will do the trick.
                    Get one of these...

                    Ed

                    To measure is to know.

                    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

                    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

                    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

                    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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                      #25
                      Is this thread/mod about turning a shafty into a bike with a chain drive??

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                        #26
                        Originally posted by Joe Garfield View Post
                        Is this thread/mod about turning a shafty into a bike with a chain drive??
                        Nope, it's about changing the chain/sprocket size on a GS1000 from the stock 630 to the much more common 530 size. 530 is more than strong enough, it's lighter, cheaper and offers more gearing choices and a vastly bigger selection of chain brand/type/quality options.


                        Mark
                        1982 GS1100E
                        1998 ZX-6R
                        2005 KTM 450EXC

                        Comment


                          #27
                          Originally posted by mmattockx View Post
                          Yep, they list JTF-513.XX for the front and JTR-816.XX for the rear for all years of GSXR1100 (using the 530 conversion choices, since they also came with 630 for some years) and a couple of years of the 550 that I checked.


                          Mark
                          I just received my JT sprockets and JT chain (Expert siries X1R X-ring Drive Chain) I ordered them from Z1 Enterprises. $150.59 to my door.(including shipping) I went with a 50 tooth rear sprocket and a 18 tooth front sprocket with 116 links of 530 chain. Check one more thing off my list👍 Oh, for reference this is for a 1979 GS1000e
                          My Motorcycles:
                          22 Kawasaki Z900 RS (Candy Tone Blue)
                          22 BMW K1600GT (Probably been to a town near you)
                          82 1100e Drag Bike (needs race engine)
                          81 1100e Street Bike (with race engine)
                          79 1000e (all original)
                          82 850g (all original)
                          80 KZ 650F (needs restored)

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                            #28
                            530 Conversion!!!

                            This thread reminds me I need to complete this task. YES, there is a SPACER that was included in my order from Z1 for my "T". I also ordered OEM nut and washer.

                            Post Reference #193 http://www.thegsresources.com/_forum...hift-Oil/page5

                            18/49 Sprockets




                            Ed
                            Last edited by GSXR7ED; 04-27-2017, 08:15 PM.
                            GS750TZ V&H/4-1, Progressive Shocks, Rebuilt MC/braided line, Tarozzi Stabilizer[Seq#2312]
                            GS750TZ Parts Bike [Seq#6036]
                            GSX-R750Y (Sold)

                            my opinion shouldn't be taken as gospel or in any way that would lead you to believe otherwise (30Sep2021)
                            Originally posted by GSXR7ED
                            Forums are pretty much unrecognizable conversations; simply because it's a smorgasbord of feedback...from people we don't know. It's not too difficult to ignore the things that need to be bypassed.

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                              #29
                              Mine is still sitting on the shelf too! I might get to it this summer, along with the oil change and perhaps some new rubber.
                              1980 GS1000G - Sold
                              1978 GS1000E - Finished!
                              1980 GS550E - Fixed & given to a friend
                              1983 GS750ES Special - Sold
                              2009 KLR 650 - Sold - gone to TX!
                              1982 GS1100G - Rebuilt and finished. - Sold
                              2009 TE610 - Dual Sporting around dreaming of Dakar.....

                              www.parasiticsanalytics.com

                              TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

                              Comment


                                #30
                                Originally posted by GSXR7ED View Post
                                This thread reminds me I need to complete this task. YES, there is a SPACER that was included in my order from Z1 for my "T". I also ordered OEM nut and washer.

                                Post Reference #193 http://www.thegsresources.com/_forum...hift-Oil/page5

                                18/49 Sprockets




                                Ed
                                Hey! I've seen that somewhere huh lol.
                                sigpicMrBill Been a GSR member on and off since April 2002
                                1980 GS 750E Bought new in Feb of 1980
                                2015 CAN AM RTS


                                Stuff I've done to my bike 1100E front end with new Sonic springs, 1100E swing arm conversion with new Progressive shocks installed, 530 sprockets/chain conversion, new SS brake lines, new brake pads. New SS fasteners through out. Rebuilt carbs, new EBC clutch springs and horn installed. New paint. Motor runs strong.

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