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General Category => Modifications => Topic started by: fj1200owl on May 19, 2012, 02:22:12 AM

Title: rear sprocket
Post by: fj1200owl on May 19, 2012, 02:22:12 AM
I've just replaced the 16" rear wheel for a 17" YZF 600 thundercatwith a 170*60*17 could anyone give mealittle advise on the tooth requirement for   the rear sprocket to maintain the same gearing.
Thanks Mike :flag_of_truce:
Title: Re: rear sprocket
Post by: markmartin on May 19, 2012, 05:10:35 AM
Search function, top of the Home page will provide you with more information.  This should get you started.

http://www.fjowners.com/index.php?topic=5355.msg46627#msg46627 (http://www.fjowners.com/index.php?topic=5355.msg46627#msg46627)
Title: Re: rear sprocket
Post by: andyb on May 19, 2012, 06:34:56 AM
You've functionally added one to the back.

If you had 17/40, go 17/39 to retain the same gearing.  One tooth though, really?  Don't bother, it's close enough.
Title: Re: rear sprocket
Post by: 93fj1200 on May 19, 2012, 07:41:53 AM
Hi, what is involved in getting the thundercat wheel to work for you?
Title: Re: rear sprocket
Post by: Travis398 on May 19, 2012, 07:56:06 AM
Quote from: andyb on May 19, 2012, 06:34:56 AM
  Don't bother, it's close enough.

That's what I would say, but I used a 180 YMMV
Title: Re: rear sprocket
Post by: fj1200owl on May 20, 2012, 01:11:35 PM
Quote from: 93fj1200 on May 19, 2012, 07:41:53 AM
Hi, what is involved in getting the thundercat wheel to work for you?


8mm off the lefthand spacer,8mm off the FJ brake mount and 3mm off the sprocket carrier face,took 30minutes in the machineshop,very easy mod,looks good,feels good on the road too.

Mike
Title: Re: rear sprocket
Post by: fj1200owl on May 20, 2012, 01:15:01 PM
Quote from: andyb on May 19, 2012, 06:34:56 AM
You've functionally added one to the back.

If you had 17/40, go 17/39 to retain the same gearing.  One tooth though, really?  Don't bother, it's close enough.

had 17/41 will go 17/41 just to pep the delivery up and see if  i like it if not i'll  go 17/40

Mike
Title: Re: rear sprocket
Post by: andyb on May 20, 2012, 08:21:56 PM
Quote from: 93fj1200 on May 19, 2012, 07:41:53 AM
Hi, what is involved in getting the thundercat wheel to work for you?

http://www.fjowners.com/index.php?topic=1567.0 (http://www.fjowners.com/index.php?topic=1567.0)

There are other swaps that also work, depending on your level of mechanical ability and what's available for you.