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-   -   Changing ratios - Rear Sprockets (/showthread.php?t=40141)

9rrr 31-Dec-2006 17:18

ratios
 
Thanks for that. All the best to you all.

Shazaam! 31-Dec-2006 17:21



There's a "sweet spot" - around 4,600 RPM @120Km/hr in 6th gear for liter displacement superbikes, a little higher for 74X's. Obviously, faster tracks will require rear sprockets with fewer teeth, slower tracks more teeth (and possibly longer chains.)

I strongly recommended NOT changing the stock front sprocket or chain size for safety reasons. Just my opinion.

MARTIN H 31-Dec-2006 20:25

Shazaam!, I used this very chart that you kindly provided earlier in the year when I changed my gearing. Only problem being the listed sprockets for the 996R are incorrect. They have a 36 tooth rear as standard. Apart from that its a great bit of info.

Happy New Year! :)

Shazaam! 01-Jan-2007 02:01

Thanks Martin. The data's been corrected above.

Stealth 24-May-2007 13:31

Dear Shazaam

Table not visible just a little red cross in a white box. Could you kindly e-mail

many thanks

Tim

Quote:

Originally Posted by Shazaam!


There's a "sweet spot" - around 4,600 RPM @120Km/hr in 6th gear for liter displacement superbikes, a little higher for 74X's. Obviously, faster tracks will require rear sprockets with fewer teeth, slower tracks more teeth (and possibly longer chains.)

I strongly recommended NOT changing the stock front sprocket or chain size for safety reasons. Just my opinion.


BDG 24-May-2007 13:48

From memory i'm on 15 38 on my 6R.

I did briefly try a 14 tooth front to test the results before investing in a rentahl rear sprocket carrier. Larger rear sprocket for same results, less stress on chain and safety reasons Shazaam has expressed.

Front wheel comes up very easy:D


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