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Discussion Starter #1
Has anyone went down one tooth on the front countershaft sprocket? I did a track day over the weekend and the gearing was pretty high for the course. Looking for some feedback from others who might have already made the change.
 

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Have you

already jumped up a couple/few in the rear? The front sprocket is more of a dramatic difference and you may want to work with the rear first. (makes the bike more jerky) I just went up one (back to stock 15) in the front because I had both sprockets done and it was way too much...it's just right now.

azduster said:
Has anyone went down one tooth on the front countershaft sprocket? I did a track day over the weekend and the gearing was pretty high for the course. Looking for some feedback from others who might have already made the change.
 

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NewDuc said:
already jumped up a couple/few in the rear? The front sprocket is more of a dramatic difference and you may want to work with the rear first. (makes the bike more jerky) I just went up one (back to stock 15) in the front because I had both sprockets done and it was way too much...it's just right now.
paddyduc said:
I have a 14 and it's perfect,
what are you guys running in the rear?
 

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My bike

Stock = 15/36

Delivered = 14/42 (practically stunt-bike gearing...I would have been down on my track day in the rain if I still had this aggressiveness/stupidity)

Now = 15/41 (very nice gearing...still aggressive but not too much and so much smoother, better bike overall)

Remember I'm a new guy...not only was my gearing much more aggressive than racers I know, it was not easy to ride. The thing wanted to redline leaving a stoplight in 1st! Every shift was jerky unless I was full throttle to redline...couldn't tell if I sucked as a new guy or if it was the bike...thankfully it was just about all the bike.

And I recommend changing all three (sprockets and chain) if you have a reasonable to significant amount of mileage already on current gearing. IMO they should ideally be all-new and run-in together.


ducatidave said:
what are you guys running in the rear?
 

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New Duc- Where'd you get the rear sprocket? I've been beating the bushes for a 40T rear for my Tri and so far no luck.
 

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A couple of sources

DP makes F/R aluminum ones right off the Ducati site...or your dealer might stock them. They're a darker gray almost like my swingarm if you've ever seen it, nice look. Then they have some other "special" ones which I don't know much about... http://www.ducati.com/shop/category.jsp?catid=cat1040140

Driven also makes nice F/R black (and other colors) aluminum ones: http://www.drivenracing.com/ The site might look cheesy/run of the mill but they have been condoned by my tech who builds and races.

FYI DP also makes a red chain if you're interested. Any gold chain looks great with the DP sprockets - what I have now - and just about anything else you pair a gold chain with. But I think the red chain will look kickass with the black sprockets, that's just more winter-time stuff that I have planned.

cloudrider said:
New Duc- Where'd you get the rear sprocket? I've been beating the bushes for a 40T rear for my Tri and so far no luck.
 

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If I changes one - Id change all 3 - my 749s was ridiculously tall and I went down 1 in the fron up to in the rear - much nicer. Personally, I also like the 520 conversions when I do sprocket changes - so I go all new anyway.

How come yours came 14/42 instead of 15/36?
 

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ND- Thanks for the info. DP only makes a 39T sprocket for my bike and the other one has no 1098 sprockets. Apparently no one is making sprockets for the Marchesini wheels on the Tri.
 

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The parts

from the "bad" bike I originally bought all got swapped to the new/demo bike for which I traded it. I wanted, so I thought, all of the performance upgrades. That's one I could live without!

ducatidave said:
If I changes one - Id change all 3 - my 749s was ridiculously tall and I went down 1 in the fron up to in the rear - much nicer. Personally, I also like the 520 conversions when I do sprocket changes - so I go all new anyway.

How come yours came 14/42 instead of 15/36?
 

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No problem

If these guys are racing the 1098s there has GOT TO be a larger sprocket for the bike...contact Driven directly because maybe the site is not updated or another sprocket will fit. You can also try AFAM and Sprocket Specialists...good luck!

cloudrider said:
ND- Thanks for the info. DP only makes a 39T sprocket for my bike and the other one has no 1098 sprockets. Apparently no one is making sprockets for the Marchesini wheels on the Tri.
 

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Front Sprocket

My bike was delivered 14T front/36T rear and I want to change the front back to a 15T and then as was suggested, play with the rear sprocket to get the 'best' final drive ratio.

The gearing is way too low (all to obvious even though I am still running it in) and I would imagine the fuel economy would improve a bit with higher gearing, too.

I am assuming there's a big jump to a 15T over the 14T but I don't really need to be pulling wheelies as I take off from traffic lights!

Cheers,
J
 

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You should

like it much better with a 15T and a bigger rear...my bike is still very quick but more manageable. Being a newbie I wasn't interested in stop-light wheelies either and they were all too easy!

The Evil Dr J said:
My bike was delivered 14T front/36T rear and I want to change the front back to a 15T and then as was suggested, play with the rear sprocket to get the 'best' final drive ratio.

The gearing is way too low (all to obvious even though I am still running it in) and I would imagine the fuel economy would improve a bit with higher gearing, too.

I am assuming there's a big jump to a 15T over the 14T but I don't really need to be pulling wheelies as I take off from traffic lights!

Cheers,
J
 

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I was wrong!

The Evil Dr J said:
My bike was delivered 14T front/36T rear and I want to change the front back to a 15T and then as was suggested, play with the rear sprocket to get the 'best' final drive ratio.
Doh! I was wrong! My bike was unchanged from standard, received it as factory with a 15T front sprocket. Makes me wonder what a 14T would be like! OMG

Cheers,
J
 

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The Evil Dr J said:
Doh! I was wrong! My bike was unchanged from standard, received it as factory with a 15T front sprocket. Makes me wonder what a 14T would be like! OMG
I went to a 14T front, and just changed it back to the stock 15T.

I wanted first gear back! With the 14T it was too easy to pick up the front end, and I would short shift to 2nd before hammering the throttle. Also found with the 14T that I was getting a fair amount of wheel hop on 2-to-1 downshifts.

Of course, in a couple weeks, I'll probably decide to go back.
 

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Discussion Starter #16
Hey yossarian, how was 2nd 3rd and 4th with the 14 front. example--- coming out of a tight corner in 2nd and rolling on the throttle to 3rd, etc. Also downshifting from 4th to 3rd and 2nd when going into a tight corner? thanks in advance.
 

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Don't forget...

your rear also comes into play. I can tell you that my setup was violent...without a slipper I would have locked up my wheel a lot especially at the track. On a rainy (first) track day that would have meant an asphalt sandwich.

It's nasty when you can hammer it in 6th and smoke anyone without downshifting...but there is a happy medium between stock and what I have and I think I found it. My bike is still quick as hell but a lot smoother.

That said, front sprockets are cheap so try it...worst case you hate it and you can swap it back. Sell the other sprocket or keep it for if/when you want the more aggressive gearing.

azduster said:
Hey yossarian, how was 2nd 3rd and 4th with the 14 front. example--- coming out of a tight corner in 2nd and rolling on the throttle to 3rd, etc. Also downshifting from 4th to 3rd and 2nd when going into a tight corner? thanks in advance.
 

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azduster said:
Hey yossarian, how was 2nd 3rd and 4th with the 14 front. example--- coming out of a tight corner in 2nd and rolling on the throttle to 3rd, etc. Also downshifting from 4th to 3rd and 2nd when going into a tight corner? thanks in advance.
Any gear above 1st was fine, no problems. It just seemed like the only time 1st was useful was taking off from a start; I'd upshift and never see it again until I had to stop.

Like another poster said, front sprockets are cheap, and (relatively) easy to swap. If you hate the change, you're out $30.
 

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chain wheel ratios

Guys,

Here's a great link that tells you the top speed in each gear, using standard chain wheels, (15/38 on the 1098), and then shows you increase/decrease in speed and rpm for each gear when you change either/both front and/or rear chain wheel(s).

http://www.xs4all.nl/~ator0437/gc/http://www.xs4all.nl/~ator0437/gc/
 
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