I've been reading a lot of threads about changing to a 14t front sprocket. Can someone explain how this effects handling/acceleration in city driving? Also, what does tall and short gearing mean? Sorry for the newbie basic questions but thanks for any response.
Yendro
Yendro-
http://www.ducatimonster.org/smf/index.php/topic,21645.0.html
Also, do a search for articles by the Gearing Guru..
Decreasing the front sprocket, or increasing the rear sprocket, helps acceleration by decreasing the load on the engine. The change also requires the engine run at a higher RPM for the same speed at the rear wheel. It has no affect on handling. And the way I understand it, tall and short gearing refers to the ratio of the front and rear sprocket. A smaller ratio (shorter gearing) puts less of a load on the engine, allowing faster acceleration.
http://www.ducatimonster.org/smf/index.php/topic,21645.0.html
Also, do a search for articles by the Gearing Guru..
Decreasing the front sprocket, or increasing the rear sprocket, helps acceleration by decreasing the load on the engine. The change also requires the engine run at a higher RPM for the same speed at the rear wheel. It has no affect on handling. And the way I understand it, tall and short gearing refers to the ratio of the front and rear sprocket. A smaller ratio (shorter gearing) puts less of a load on the engine, allowing faster acceleration.
Ok, Yendro I'll just assume you've already searched for "14 tooth" or "14T" and are just asking to get confirmation for what you've already learned.  
 If you haven't yet done a search, there is a wealth of info already out there.
A 14 tooth front will help your low speed and in-city handling because at lower speeds, you will be lugging the engine less and not slipping the clutch as much below 20 mph. So your clutch hand will hurt less and you'll have more oomph at lower speeds, which makes the bike easier to handle. It'll also give you better acceleration off the line and more power throughout the gear range. The range of speeds for each gear will be shorter, so you might have to shift a bit more. But it tends to put the gear shift points more where you want them, so, for example, you are less likely to find yourself at a speed where you're not sure if you want to be in 2nd or 1st. A must-do mod as far as I'm concerned, but that's just my opinion.
 If you haven't yet done a search, there is a wealth of info already out there.A 14 tooth front will help your low speed and in-city handling because at lower speeds, you will be lugging the engine less and not slipping the clutch as much below 20 mph. So your clutch hand will hurt less and you'll have more oomph at lower speeds, which makes the bike easier to handle. It'll also give you better acceleration off the line and more power throughout the gear range. The range of speeds for each gear will be shorter, so you might have to shift a bit more. But it tends to put the gear shift points more where you want them, so, for example, you are less likely to find yourself at a speed where you're not sure if you want to be in 2nd or 1st. A must-do mod as far as I'm concerned, but that's just my opinion.
You mean a larger ratio, right? Shorter gearing does not mean a lower gear ratio. Divide the teeth in your rear teeth sprocket by the teeth in your front. That is the ratio. When this is lower, your gearing is tall. Shorter gearing is a higher ratio. In addition to Jim's great gearing FAQ, here is another article (from 2000) that explains taller and shorter gearing as well as how gearing works: http://www.sportrider.com/tech/146_0008_gearing/cerbera said:
Yendro:
1. Read the Gearing FAQ elsewhere on this board (DML Resources)
2. Your emial address is hidden, and the PM channel does not support attachments. If you email me at
JimGnitecki@msn.com
I'll send you a free sample Gearing Guru report, which, coupled with the Gearing FAQ, will help you understand what regearing is all about.
The "taller" versus "shoret" thing is confusing. Actually, "taller" gearing means means "numerically lower" (figure THAT one out!) and harder to accelerate, and "shorter" gearing means "numerically greater" and easier to accelerate. Normally, taller gearing means higher TOP speed and shorter gearing means lower top speed, but with the way most Ducati's are overgeared from the factory, that rule is usually NOT true for Ducati's.
It all makes more sense once you have read the Gearing FAQ and a sample report.
Jim G
1. Read the Gearing FAQ elsewhere on this board (DML Resources)
2. Your emial address is hidden, and the PM channel does not support attachments. If you email me at
JimGnitecki@msn.com
I'll send you a free sample Gearing Guru report, which, coupled with the Gearing FAQ, will help you understand what regearing is all about.
The "taller" versus "shoret" thing is confusing. Actually, "taller" gearing means means "numerically lower" (figure THAT one out!) and harder to accelerate, and "shorter" gearing means "numerically greater" and easier to accelerate. Normally, taller gearing means higher TOP speed and shorter gearing means lower top speed, but with the way most Ducati's are overgeared from the factory, that rule is usually NOT true for Ducati's.
It all makes more sense once you have read the Gearing FAQ and a sample report.
Jim G
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