14 tooth sprocket install

jsgcb · Aug 28, 2013

more looking for someone who has this done , but thanks for the view. i would guess that only someone racing would use this gearing combo but thought i would ask.

AntiHero · Aug 28, 2013

Smaller front sprockets increase torque-induced squat while accelerating, reducing the effectiveness of the rear shock (and in some cases can even bind it). Not a big deal on the street, but on the track it would be noticeable when the pace increases. WSBK Ducati teams (pre-Panigale) went with 16T sprockets for a reason....

Carl1199 · Aug 28, 2013

jsgcb said:
has anybody done this with going up in the rear sprocket as well? i already have the 41 rear installed and by putting the 14 in the front wonder if the bike would be too snappy? anybody?

Stunt bike comes to mind if you were to do this, would make it a 2 speed as you would take off in 5th just to stop it flipping over backwards LOL!!!

MrKO · Aug 28, 2013

AntiHero said:
Smaller front sprockets increase torque-induced squat while accelerating, reducing the effectiveness of the rear shock (and in some cases can even bind it). Not a big deal on the street, but on the track it would be noticeable when the pace increases. WSBK Ducati teams (pre-Panigale) went with 16T sprockets for a reason....

but a 41 rear sprocket also increases torque. I think the reason a WSBK is about to ride with a 16T front has a lot more to do with... well the fact that they are a WSBK rider than the torque, no ?

. I mean physics are physics. WSBK, better tires, better riders , bigger faster tracks. Not to peck a fight

AntiHero · Aug 28, 2013

MrKO said:
but a 41 rear sprocket also increases torque. I think the reason a WSBK is about to ride with a 16T front has a lot more to do with... well the fact that they are a WSBK rider than the torque, no ? . I mean physics are physics. WSBK, better tires, better riders , bigger faster tracks. Not to peck a fight

I don't mean torque as in 'propel you forward' torque. I mean torque as it acts on the rear suspension. A smaller diameter front sprocket negatively affects the ability of your rear shock to absorb bumps. Basically a larger diameter rear sprocket is a better choice than a smaller diameter front sprocket due to the way the engine ..... with your suspension.

Duck41 · Aug 28, 2013

AntiHero said:
I don't mean torque as in 'propel you forward' torque. I mean torque as it acts on the rear suspension. A smaller diameter front sprocket negatively affects the ability of your rear shock to absorb bumps. Basically a larger diameter rear sprocket is a better choice than a smaller diameter front sprocket due to the way the engine ..... with your suspension.

I'm curious as to what, if any, affect rider weight has on this. My rear shock is much heavier than what it should be for my weight; perhaps running a smaller front sprocket would help negate this to a degree.

MrKO · Aug 29, 2013

AntiHero said:
I don't mean torque as in 'propel you forward' torque. I mean torque as it acts on the rear suspension. A smaller diameter front sprocket negatively affects the ability of your rear shock to absorb bumps. Basically a larger diameter rear sprocket is a better choice than a smaller diameter front sprocket due to the way the engine ..... with your suspension.

So I read up on it. They say the chain has an increased torque effect when is has to go around a smaller front sprocket. Makes more sense now. I'm sure running a 520 chain would help this some as it is a lighter chain. Good stuff though antihero, I learned something new

kope999R · Aug 29, 2013

jsgcb said:
has anybody done this with going up in the rear sprocket as well? i already have the 41 rear installed and by putting the 14 in the front wonder if the bike would be too snappy? anybody?

14/42 would be 15/45... that is short straight track - race territory... i'm at 15/42 = same as 14/39.... good combo but 43 may be better depending on the track... but it either will probably be 15/40 or 15/43 as it shifts the place where you are in the gear you want to be... especially the difference between 2/3, 3/4 or 4/5 can change how you tackle a track...

mig1199 · Aug 29, 2013

AntiHero said:
I don't mean torque as in 'propel you forward' torque. I mean torque as it acts on the rear suspension. A smaller diameter front sprocket negatively affects the ability of your rear shock to absorb bumps. Basically a larger diameter rear sprocket is a better choice than a smaller diameter front sprocket due to the way the engine ..... with your suspension.

I went with a 42T rear instead of the recommended 41T. She runs awesome on the road and on the tracks.

AntiHero · Aug 29, 2013

mig1199 said:
I went with a 42T rear instead of the recommended 41T. She runs awesome on the road and on the tracks.

Going to a 41T was a big step up, 42T seems unimaginable. Hard enough to keep the front on the ground with the 41.

Charliem90 · Aug 29, 2013

Duck41 said:
I'm curious as to what, if any, affect rider weight has on this. My rear shock is much heavier than what it should be for my weight; perhaps running a smaller front sprocket would help negate this to a degree.

You don't want to do that.

If your suspension needs to be tuned, then do it right - change the spring/valving/etc. Don't screw with the drive train in an attempt to fix what's wrong with the suspension.

You can get rear springs that are the correct rate reasonably cheap (around $100) which will let you tune your suspension to what it should be. Why screw around with the drive train in a futile attempt to fix what's out of whack in your suspension?

Duck41 · Aug 29, 2013

Charliem90 said:
You don't want to do that.

If your suspension needs to be tuned, then do it right - change the spring/valving/etc. Don't screw with the drive train in an attempt to fix what's wrong with the suspension.

You can get rear springs that are the correct rate reasonably cheap (around $100) which will let you tune your suspension to what it should be. Why screw around with the drive train in a futile attempt to fix what's out of whack in your suspension?

Point well noted although my intention was never to correct my suspension setup with this modification but to determine whether the affect would bring me closer to the desired to state.

14 tooth sprocket install

Help Support Ducati Forum:

jsgcb

AntiHero

Carl1199

MrKO

AntiHero

Duck41

MrKO

kope999R

mig1199

AntiHero

Charliem90

Duck41

Similar threads

Register CTA

Recent Discussions