gearing question 749

Just wanted to see what some of the other members were running for gearing on their bikes. I am looking for a little more snap off the line. I ride mainly street with a few track days when I can. Any opinions/comments would be greatly appreciated!
Nick

i'm running 1 down in the front and two up in the back with a nichols fly wheel ..
it's like night and day ,, but ,, one down (front ) and one up ( back ) would work fine for most .. that's my next one to try .

Recommended Gearing

Questions come up regularly about recommended sprocket changes and the required chain lengths for superbikes. Here's my recommendations for general street and track use.



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.

My 749 came stock 14/39. Couldn't go down any further in front so I went two up at the rear and change the whole setup to 520. Big difference! Much much better on street. Jason at section8 made the recommandation and I also got the stuffs from him.

14/41

thanks for the input guys, sounds like i have some options to consider! without too much flaming.....what is the benefit of going to a 520 setup from a stock 525???? thanks again everybody
nick

Less rolling weight.

is it really 1.5 lbs less???? thats a good start if it really is! what can i expect to pay for a good setup?
nick

one more question, (is it obvious i am bored at work ) what kind of tools will i need for the job.
nick

Before you switch, ask yourself why Ducati (and all the other manufacturers) put a stronger, heavier chain on liter-displacement bikes. Is weight really the only issue here?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Shazaam! &raquo;</TD></TR><TR><TD CLASS="quote"> ask yourself why Ducati (and all the other manufacturers) put a stronger, heavier chain on liter-displacement bikes. Is weight really the only issue here?</TD></TR></TABLE>

Somehow, in this day and age, I think lawyers had a lot to do with it... Safety overkill.

the only reason i would be switching to the 520 is because of the change in sprocket size. i dont think its a necessity, but saving some weight isnt a bad thing. besides that, i dont know that DID et al would produce a chain prone to snapping, just my though

Ducati (and Honda etc.) engineers specify chain size based on the torque of each model, not DID or lawyers.

If you go two up at the rear, you have to change your chain too because the stock would be too short. For an extra price of a front sprocket you are buying another big improvement.

OK, I give. Sorry to rob the thread here, but.....
Whats your background Shazaam and what do you currently do for employment?
You have some of the most intelligent and beneficial information of any poster I have ever seen. Interestingly enough, you seem to be well educated and knowledgable about quite a few different things. So I guess thanks for sharing with the community.
&lt;end rant&gt;

Retired aerospace engineer with career experience in structural dynamics and failure analysis of nuclear plant systems who manages to ride an old '95 916 in the mountains and canyons of southern california without falling off. I know nothing about flux capacitors, so don't ask.

glad to have you around Shazaam! very helpful indeed.

So what you're saying is that your no rocket scientist.....

i'm currently running 14/41 on my 03 749, but am considering going down a tooth in the rear or even back to stock. but i'm also making 15-20 more hp than a stock 749.

Froggert, what mods, i assume engine, have you done? which 749 do you have? Dark, S??
nick