Report on 14t change on front sprocket:

unrazzo · September 13th, 2012, 11:09 PM

Normally on my Ducs I ritualistically up the rear sprocket, but the guys at the shop convinced me to try this instead. It's not as drastic a change as the rear has been on my 996, 848, or any of my monsters, but its a nice improvement:

1. Surprisingly cheap mod, even if the dealer does it. (Mine did it for a little over $100.)

2. WAY better every day rideability overall.

3. MAJOR difference on city streets, even though the pani is not a city kinda bike, 50% of my commute is in the city.
- turns at intersections are practically a diff bike, so much better, no clutch-coasting anymore. Especially good when launching right or left from a light.
- 25-35mph is out of that crap fueling range b/t 3k and 4k rpms

4. Highway riding at 70 is now just outside the crap fueling range in 6th gear... a world of difference. I don't have to ride 80 to stay out of that range, especially great when riding though CHiPy Valley (Mill Valley, CA) on fund-raising days.

5. Launching requires a lot less time letting the clutch out, launches are much less effort and let gassing required.

6. Power FEELS like it's available sooner. This might be psychological, but it really feels like the whole power band is much more on-tap.

Recommendation: If you don't race your pani, I recommend this mod.

Part: $42 USD
Labor: 30 mins

joshinthecity · September 13th, 2012, 11:44 PM

Good report.
I'm down with this..

I think it's in my future.
What brand sprocket did you use? and also.. any reason you did the front as opposed to the rear?
I figure less stress on the gearbox by upping the rear sprocket slightly instead.

Thanks.
j.

alb · September 14th, 2012, 01:47 AM

Does this have any effect on the speed reported? Do you have to get it adjusted?

Titaniumvalves · September 14th, 2012, 04:48 AM

humm...i'm under the impression that the vehicle speed is eventually derive from the front or rear wheel speed sensor, since knowing the circumference of the tyres,No?

tstephenson · September 14th, 2012, 05:34 AM

Quote:

Originally Posted by unrazzo

Normally on my Ducs I ritualistically up the rear sprocket, but the guys at the shop convinced me to try this instead. It's not as drastic a change as the rear has been on my 996, 848, or any of my monsters, but its a nice improvement:

1. Surprisingly cheap mod, even if the dealer does it. (Mine did it for a little over $100.)

2. WAY better every day rideability overall.

3. MAJOR difference on city streets, even though the pani is not a city kinda bike, 50% of my commute is in the city.
- turns at intersections are practically a diff bike, so much better, no clutch-coasting anymore. Especially good when launching right or left from a light.
- 25-35mph is out of that crap fueling range b/t 3k and 4k rpms

4. Highway riding at 70 is now just outside the crap fueling range in 6th gear... a world of difference. I don't have to ride 80 to stay out of that range, especially great when riding though CHiPy Valley (Mill Valley, CA) on fund-raising days.

5. Launching requires a lot less time letting the clutch out, launches are much less effort and let gassing required.

6. Power FEELS like it's available sooner. This might be psychological, but it really feels like the whole power band is much more on-tap.

Recommendation: If you don't race your pani, I recommend this mod.

Part: $42 USD
Labor: 30 mins

How does it feel on the track?

alb · September 14th, 2012, 05:39 AM

Quote:

Originally Posted by Titaniumvalves

humm...i'm under the impression that the vehicle speed is eventually derive from the front or rear wheel speed sensor, since knowing the circumference of the tyres,No?

Not sure.

One of the guys I know was planning on fitting a speedo healer (HealTech Electronics Ltd. - Makers of the SpeedoHealer, GIpro, X-TRE, FI Tuner Pro, Brake Light Pro, MM5, OBD Tool) after going 2 up at the back.

Phil · September 14th, 2012, 05:50 AM

made the change also 2 days ago, very smooth to ride in traffic, and also pops right in your face in the first 3 gears if you're sitting too far back and twisting the throttle too fast.

Stw · September 14th, 2012, 06:05 AM

Speedo accuracy is not affected?? Right??

Phil · September 14th, 2012, 06:51 AM

Quote:

Originally Posted by Stw

Speedo accuracy is not affected?? Right??

not that i could tell. the 110 mph on the 1/8 mile were the 110 on the dash ;-)

ScottJon · September 14th, 2012, 10:05 AM

I may be a dumbass, but Im not seeing what the actual mod is?

Im very interested since i too drive through the city (Los Angeles) and this sounds like a interesting concept

thanks!

Quote:

Originally Posted by unrazzo

Normally on my Ducs I ritualistically up the rear sprocket, but the guys at the shop convinced me to try this instead. It's not as drastic a change as the rear has been on my 996, 848, or any of my monsters, but its a nice improvement:

1. Surprisingly cheap mod, even if the dealer does it. (Mine did it for a little over $100.)

2. WAY better every day rideability overall.

3. MAJOR difference on city streets, even though the pani is not a city kinda bike, 50% of my commute is in the city.
- turns at intersections are practically a diff bike, so much better, no clutch-coasting anymore. Especially good when launching right or left from a light.
- 25-35mph is out of that crap fueling range b/t 3k and 4k rpms

4. Highway riding at 70 is now just outside the crap fueling range in 6th gear... a world of difference. I don't have to ride 80 to stay out of that range, especially great when riding though CHiPy Valley (Mill Valley, CA) on fund-raising days.

5. Launching requires a lot less time letting the clutch out, launches are much less effort and let gassing required.

6. Power FEELS like it's available sooner. This might be psychological, but it really feels like the whole power band is much more on-tap.

Recommendation: If you don't race your pani, I recommend this mod.

Part: $42 USD
Labor: 30 mins

TricoloreSF · September 14th, 2012, 10:16 AM

won't affect speedo since the sensor is based on wheel speed - minus the 5% stated in the manual

AntiHero · September 14th, 2012, 11:48 AM

Quote:

Originally Posted by ScottJon

I may be a dumbass, but Im not seeing what the actual mod is?

thanks!

The front sprocket is replaced by one that has 1 less tooth (and therefore a smaller circumference). Same concept as on a 10 speed--the smaller the front sprocket (or the larger the rear) and the faster you'll accelerate. Because the smaller sprocket shortens the gearing, you'll sacrifice a little top end, but very few people actually will ever see those kind of triple digit speeds.

ScottJon · September 14th, 2012, 01:03 PM

Quote:

Originally Posted by AntiHero

The front sprocket is replaced by one that has 1 less tooth (and therefore a smaller circumference). Same concept as on a 10 speed--the smaller the front sprocket (or the larger the rear) and the faster you'll accelerate. Because the smaller sprocket shortens the gearing, you'll sacrifice a little top end, but very few people actually will ever see those kind of triple digit speeds.

Thank you for that clarification.

I will ask when i bring it in for the next service. sounds like i need this

kensteele · September 14th, 2012, 04:23 PM

Just waiting to hear definitively on the speedo.

jarelj · September 14th, 2012, 04:30 PM

Speedo sensor is on the rear wheel, no impact from gearing changes.

kensteele · September 14th, 2012, 05:40 PM

^ok sounds good. 80% of my riding is commuting/city with an occassional weekend of riding in the ks countryside. so this may be suitable for me, gonna look into it; thanks.

SpeedyJustice · September 14th, 2012, 06:01 PM

I may try this on my though I enjoy taking to the track. Infact I understand one arm racer did change the rear sprocket up 3 teeth to have the revs in the power band...and you don't have to buy a new chain, I presume!

@unrazzo I live in mill valley too. Hope to see you around
SpeedyJustice

AntiHero · September 14th, 2012, 06:37 PM

Three rear teeth is going to extend the wheelbase. Better for putting power down in a straight line, but might screw up handling.

unrazzo · September 14th, 2012, 06:43 PM

- Speedo is not effected. Drive shaft doesn't meter for the speedo, it's at the rear wheel.

- Haven't been to the track yet... I'll report when I do in Nov.

-I didn't do the rear because the shop recommended trying the front first. The rear requires more parts and labor as well.

- I have not had it pop-up accidentally yet, but it's easier when I try for sure.

-I'm getting some PM's about the part:

AFAM 525 Chromoly Steel Countershaft Sprocket - Ducati Drive Systems USA Inc.

Xbox · September 14th, 2012, 08:26 PM

Did they shorten the chain?

If not how did they preserve ride height, once it was adjusted out?

September 13th, 2012, 11:09 PM	#1
unrazzo Member Joined: May 2012 From: NorCal, USA Posts: 96 Thanks: 0 I Ride: 1199 Pani-awesome	Report on 14t change on front sprocket: Normally on my Ducs I ritualistically up the rear sprocket, but the guys at the shop convinced me to try this instead. It's not as drastic a change as the rear has been on my 996, 848, or any of my monsters, but its a nice improvement: 1. Surprisingly cheap mod, even if the dealer does it. (Mine did it for a little over $100.) 2. WAY better every day rideability overall. 3. MAJOR difference on city streets, even though the pani is not a city kinda bike, 50% of my commute is in the city. - turns at intersections are practically a diff bike, so much better, no clutch-coasting anymore. Especially good when launching right or left from a light. - 25-35mph is out of that crap fueling range b/t 3k and 4k rpms 4. Highway riding at 70 is now just outside the crap fueling range in 6th gear... a world of difference. I don't have to ride 80 to stay out of that range, especially great when riding though CHiPy Valley (Mill Valley, CA) on fund-raising days. 5. Launching requires a lot less time letting the clutch out, launches are much less effort and let gassing required. 6. Power FEELS like it's available sooner. This might be psychological, but it really feels like the whole power band is much more on-tap. Recommendation: If you don't race your pani, I recommend this mod. Part: $42 USD Labor: 30 mins

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September 13th, 2012, 11:44 PM	#2
joshinthecity Senior Member Joined: Apr 2012 From: Sydney Australia Posts: 213 Thanks: 10 I Ride: Panigale S	Good report. I'm down with this.. I think it's in my future. What brand sprocket did you use? and also.. any reason you did the front as opposed to the rear? I figure less stress on the gearbox by upping the rear sprocket slightly instead. Thanks. j.

September 14th, 2012, 01:47 AM	#3
alb Senior Member Joined: Jul 2012 From: Glasgow, Scotland Posts: 178 Thanks: 7 I Ride: Ducati 1199 Panigale ABS, Yamaha FJR1300A	Does this have any effect on the speed reported? Do you have to get it adjusted?

September 14th, 2012, 04:48 AM	#4
Titaniumvalves Senior Member Joined: Nov 2011 From: SIN Posts: 190 Thanks: 6	humm...i'm under the impression that the vehicle speed is eventually derive from the front or rear wheel speed sensor, since knowing the circumference of the tyres,No?

September 14th, 2012, 05:50 AM	#7
Phil Senior Member Joined: Feb 2012 From: my garage Posts: 1,335 Thanks: 151 I Ride: oh yes, I do!!!	made the change also 2 days ago, very smooth to ride in traffic, and also pops right in your face in the first 3 gears if you're sitting too far back and twisting the throttle too fast.

September 14th, 2012, 06:05 AM	#8
Stw Senior Member Joined: Aug 2012 From: Dallas Tx Posts: 1,298 Thanks: 287 I Ride: Panigale & some Carbon :)	Speedo accuracy is not affected?? Right??

September 14th, 2012, 10:16 AM	#11
TricoloreSF Senior Member Joined: Jun 2012 From: SF Bay Area Posts: 331 Thanks: 28	won't affect speedo since the sensor is based on wheel speed - minus the 5% stated in the manual

September 14th, 2012, 04:23 PM	#14
kensteele Senior Member Joined: Jan 2012 From: Overland Park, KS Posts: 425 Thanks: 28	Just waiting to hear definitively on the speedo.

September 14th, 2012, 04:30 PM	#15
jarelj Senior Member Joined: Jul 2012 From: Omaha, NE USA Posts: 347 Thanks: 33 I Ride: 1199 Panigale	Speedo sensor is on the rear wheel, no impact from gearing changes.

September 14th, 2012, 05:40 PM	#16
kensteele Senior Member Joined: Jan 2012 From: Overland Park, KS Posts: 425 Thanks: 28	^ok sounds good. 80% of my riding is commuting/city with an occassional weekend of riding in the ks countryside. so this may be suitable for me, gonna look into it; thanks.

September 14th, 2012, 06:01 PM	#17
SpeedyJustice Junior Member Joined: May 2012 From: San Francisco Posts: 11 Thanks: 0 I Ride: Tricolore	I may try this on my though I enjoy taking to the track. Infact I understand one arm racer did change the rear sprocket up 3 teeth to have the revs in the power band...and you don't have to buy a new chain, I presume! @unrazzo I live in mill valley too. Hope to see you around SpeedyJustice

September 14th, 2012, 06:37 PM	#18
AntiHero Senior Member Joined: Nov 2011 From: LA to SF to NY and Back Posts: 608 Thanks: 170	Three rear teeth is going to extend the wheelbase. Better for putting power down in a straight line, but might screw up handling.

September 14th, 2012, 06:43 PM	#19
unrazzo Member Joined: May 2012 From: NorCal, USA Posts: 96 Thanks: 0 I Ride: 1199 Pani-awesome	- Speedo is not effected. Drive shaft doesn't meter for the speedo, it's at the rear wheel. - Haven't been to the track yet... I'll report when I do in Nov. -I didn't do the rear because the shop recommended trying the front first. The rear requires more parts and labor as well. - I have not had it pop-up accidentally yet, but it's easier when I try for sure. -I'm getting some PM's about the part: AFAM 525 Chromoly Steel Countershaft Sprocket - Ducati Drive Systems USA Inc.

September 14th, 2012, 08:26 PM	#20
Xbox Senior Member Joined: Jan 2012 From: The Med Posts: 1,606 Thanks: 72 I Ride: 1199 Tric	Did they shorten the chain? If not how did they preserve ride height, once it was adjusted out?