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+--- Thread: chain sprocket ratios (/showthread.php?tid=18367)
chain sprocket ratios - Bartman - 28-12-2011
Hey guys and gals, merry xmas and happy new year. My question is what is the standard front/rear sprocket ratio on a gen 1 (04) I think mine has been changed as my speedo seems to be WAAAY out 110km highway speed indicating roughly 130-40kmh! so I figure if I change back to original at least it will be closer? I realise they are not spot on even when new 8-10% quite often. I,m not interested in having ballistic excelleration because in standard trim the Busa has that already so going back to standard is not an issue. One thing I havent done is check the current sprockets but Iam confident they are not standard. It needs a new set soon thats why the question. One last thing where does the speedo get its info from (RPM?). Cheers Bartman
RE: chain sprocket ratios - big kev - 28-12-2011
stock gearing on the (mine is an 04) busa gen 1 Front 17 Rear 40 ,
cheers
RE: chain sprocket ratios - PostmanPete - 28-12-2011
(28-12-2011, 07:59am)Bartman Wrote: Hey guys and gals, merry xmas and happy new year. My question is what is the standard front/rear sprocket ratio on a gen 1 (04) I think mine has been changed as my speedo seems to be WAAAY out 110km highway speed indicating roughly 130-40kmh! so I figure if I change back to original at least it will be closer? I realise they are not spot on even when new 8-10% quite often. I,m not interested in having ballistic excelleration because in standard trim the Busa has that already so going back to standard is not an issue. One thing I havent done is check the current sprockets but Iam confident they are not standard. It needs a new set soon thats why the question. One last thing where does the speedo get its info from (RPM?). Cheers Bartman
Hiya Bartman,
Speed info is taken from front sprocket, if you look above and forward of your lh peg you'll see a wire with a plug bolted in to the sprocket cover. All becomes obvious when you remove this cover. As Kev said, std gearing is 17/40. I've got 18/40 gearing on mine, and it's only a bees dick out. (With a 190/50/17 tyre)
Cheers
RE: chain sprocket ratios - Bartman - 28-12-2011
(28-12-2011, 08:11am)big kev Wrote: stock gearing on the (mine is an 04) busa gen 1 Front 17 Rear 40 ,
cheers
Thanks Kev
(28-12-2011, 10:10am)PostmanPete Wrote:(28-12-2011, 07:59am)Bartman Wrote: Hey guys and gals, merry xmas and happy new year. My question is what is the standard front/rear sprocket ratio on a gen 1 (04) I think mine has been changed as my speedo seems to be WAAAY out 110km highway speed indicating roughly 130-40kmh! so I figure if I change back to original at least it will be closer? I realise they are not spot on even when new 8-10% quite often. I,m not interested in having ballistic excelleration because in standard trim the Busa has that already so going back to standard is not an issue. One thing I havent done is check the current sprockets but Iam confident they are not standard. It needs a new set soon thats why the question. One last thing where does the speedo get its info from (RPM?). Cheers Bartman
Hiya Bartman,
Speed info is taken from front sprocket, if you look above and forward of your lh peg you'll see a wire with a plug bolted in to the sprocket cover. All becomes obvious when you remove this cover. As Kev said, std gearing is 17/40. I've got 18/40 gearing on mine, and it's only a bees dick out. (With a 190/50/17 tyre)
Cheers
Cheers Postman.
RE: chain sprocket ratios - Rossco - 28-12-2011
http://www.gearingcommander.com/
Handy site
RE: chain sprocket ratios - TheShredder - 28-12-2011
Run what ever gearing /tyre size you like correct the speedo with 1 of these simple & works
http://www.healtech-electronics.com/
RE: chain sprocket ratios - Shifu - 28-12-2011
(28-12-2011, 03:12pm)Rossco Wrote: http://www.gearingcommander.com/
Handy site
Nice find
Thanks.
RE: chain sprocket ratios - GRUNTMAX - 29-12-2011
Lard Ar*e doesn't like my links, but I'm sure you will
Run One of these, comes up in big red numerals, ignore your speedo.
http://www.speedcheetah.com/scshop/page.php?xPage=c100.html
....and one of these;
http://www.motorcycleradar.com/mount_accessories.htm
....and one of these;
http://www.motorcycleradar.com/stem_mounts.htm#3-10105
....and one of these;
http://www.motorcycleradar.com/radar_screamer.htm
....and one of these;
http://www.dontgetcaught.com.au/catalog/item/5421084/9094485.htm
Not Guilty under Sect 32 of the mental health act.
