Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > 998 / 996 / 916 / 748 > Changing ratios

[Gaz 748]

Originally Posted by 9rrr

So if I go a tooth smaller on the front to 14T and keep the 38T rear I should see a difference... yeah ?

Oh yes !!!!!!!!!!!!!! Talon make a 13 front, but it runs too close to the swinging arm. 14 will be fine

[9rrr]

Brill final question, how much for Renthal 14T front sprocket

[bill955]

£17.32+vat

[9rrr]

Thanks for that. All the best to you all.

[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.

[MARTIN H]

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!]

Thanks Martin. The data's been corrected above.