1299 and 1299s still get ...... 39 tooth sprocket

Duck41 · Apr 26, 2015

A clutchless downshift would certainly be more efficient in that scenario, but that is neither here nor there.

Duck41 · Apr 26, 2015

Chaotic said:
On the street, I never change gearing. If I want more acceleration, I will just downshift. I have always thought it was funny when people change sprockets because they want more acceleration, but yet they ride around with the bike at 5k-7k RPM all the time (mostly referring to I4's that are meant to stay above 10k RPM).

I have never seen a need to change gearing on a street bike, especially a Liter bike.

It is even more comical when we are talking about a "necessity" to change gearing on a bike that makes 200hp and 100lb/ft of torque. If somebody needs more gearing with that kind of power/weight ratio, they should probably work on keeping the bike at the optimal RPM's.

Most modifications for street bike applications are driven by want, rather than need. I don't believe I've heard anyone refer to changing gearing on a street bike as something that is absolutely essential --it's usually done to simply optimize the characteristics for each rider's intended application.

Mutt1979 · Apr 26, 2015

mark419ny said:
well it seems that the 1299 and 1299s still get the ...... 39 tooth rear sproket while the R gets the 41 tooth sprocket. i wonder why this is can it be they want you to upgrade bwhahaha

Not at all........

The 1299's sprocket is for the 1299 engine which has a redline of 10,500 rpm. The gearing is designed to get the best performance out of the engine which is more focused on torque i.e. street riding.

The R's sprocket is engineered for full use of the superlight R specific engine which redline's at 11,500. It's set up for top end performance which is best suited to the track which is exactly what the R is designed for.......

So now you can stop wondering

slickwill · Apr 26, 2015

If any of you guys plan to ditch your 39T sprocket let me know. I'll keep my 41T on the R 98% of the time but my bucket list for this bike includes running the Texas Mile and the 39T would be a better match for the top speed goal.

Chaotic · Apr 26, 2015

Duck41 said:
A clutchless downshift would certainly be more efficient in that scenario, but that is neither here nor there.

Well played.

80shilling · Apr 26, 2015

Mutt1979 said:
Not at all........

The 1299's sprocket is for the 1299 engine which has a redline of 10,500 rpm. The gearing is designed to get the best performance out of the engine which is more focused on torque i.e. street riding.

The R's sprocket is engineered for full use of the superlight R specific engine which redline's at 11,500. It's set up for top end performance which is best suited to the track which is exactly what the R is designed for.......

So now you can stop wondering

the owners manual right in front of me says the 1299 has a rev limit of 11,500 rpm, as does the Ducati website. I will have to test it this afternoon when I go for a ride. It makes peak power at 10,500 rpm, but that's not the redline/rev limit.

Pani Dropper · Apr 26, 2015

Mutt1979 said:
Not at all........

The 1299's sprocket is for the 1299 engine which has a redline of 10,500 rpm. The gearing is designed to get the best performance out of the engine which is more focused on torque i.e. street riding.

The R's sprocket is engineered for full use of the superlight R specific engine which redline's at 11,500. It's set up for top end performance which is best suited to the track which is exactly what the R is designed for.......

So now you can stop wondering

Although I agree with what you're saying, your numbers are wrong. The 1199/1299 redline at 11,500 and the R models go to 12,000.

Buliwyf · Apr 26, 2015

slickwill said:
If any of you guys plan to ditch your 39T sprocket let me know. I'll keep my 41T on the R 98% of the time but my bucket list for this bike includes running the Texas Mile and the 39T would be a better match for the top speed goal.

Not sure I follow. You want to go slower with a taller gear? Don't think the R has the power to pull that gear to the same speed as the stock gear. Will be below the peak power RPM range.

I thought to break 200mph, Ducati had to build more power, and gear down to reach a stronger RPM.

What would be the redline on an R with a 39t if it had the power to get there? 210mph? It already does 201!

slickwill · Apr 26, 2015

In some of the actual timed testing that I've seen the SL was at redline at 192mph and ran out of revs before power. The 39T mathematically would give it a chance for a few more MPH before redline. Whether or not it can turn the 39T at those speeds will take testing. It's a tough call at which will work better but you get two runs so I'd probably try both.

bradp51 · Apr 26, 2015

Chaotic said:
On the street, I never change gearing. If I want more acceleration, I will just downshift. I have always thought it was funny when people change sprockets because they want more acceleration, but yet they ride around with the bike at 5k-7k RPM all the time (mostly referring to I4's that are meant to stay above 10k RPM).

I have never seen a need to change gearing on a street bike, especially a Liter bike.

It is even more comical when we are talking about a "necessity" to change gearing on a bike that makes 200hp and 100lb/ft of torque. If somebody needs more gearing with that kind of power/weight ratio, they should probably work on keeping the bike at the optimal RPM's.

On the track, there is no such thing as "right" gearing. Gearing, like suspension setup, changes from track to track. The goal is to avoid being "between gears" as much as possible, to be able to finish out straightaway's in a particular gear without having to upshift and then downshift 50' later, to be able to maximize corner exits and to eliminate gearbox manipulations when possible. And the gearing it takes to accomplish those things will change based upon track layout.

Chris,
While I agree with most of what you say, I changed my rear to 41 to make riding in slow traffic just that bit easier. When I am in first gear, I cannot change down. It was to reduce speed crawling in traffic.

Of course the downside is at the other end. On my first ride out after the change on some much faster quiet roads, belting along in 6th gear, I found myself looking for 7th. But as most of my riding is done in an area with slower top speeds I have found the 41 on the back to suit me.

Chaotic · Apr 27, 2015

bradp51 said:
Chris,
While I agree with most of what you say, I changed my rear to 41 to make riding in slow traffic just that bit easier. When I am in first gear, I cannot change down. It was to reduce speed crawling in traffic.

Of course the downside is at the other end. On my first ride out after the change on some much faster quiet roads, belting along in 6th gear, I found myself looking for 7th. But as most of my riding is done in an area with slower top speeds I have found the 41 on the back to suit me.

Understand completely. It is all personal preference, I personally have just never changed gearing on street bikes. But I imagine the majority of people do. Especially on Liter bikes with really tall gearing.

bradp51 · Apr 27, 2015

Chaotic said:
Understand completely. It is all personal preference, I personally have just never changed gearing on street bikes. But I imagine the majority of people do. Especially on Liter bikes with really tall gearing.

Actually as I read your answer, it kind of struck me that my riding area is like a really large track. A few hundred kilometres away where the roads are much more open its like a track with a really long straight.

Now all we need is for Ducati to invent a selectable gearbox with some extra ratios on the fly.

Chaotic · Apr 27, 2015

bradp51 said:
Actually as I read your answer, it kind of struck me that my riding area is like a really large track. A few hundred kilometres away where the roads are much more open its like a track with a really long straight.

Now all we need is for Ducati to invent a selectable gearbox with some extra ratios on the fly.

That must be awesome. I prefer the open, sweeping type of corners/roads.

I live in the mountains so there are a ton of curves. I don't know if you have ever seen "Deals Gap" (aka "Tail of the Dragon") mentioned on forums from USA guys, but it is a stretch of road that has 311 curves in 11 miles. And along it is the Cherohala Skyway which is awesome also.

But those corners are all slow (as in 30-70mph). Some of the corners in Deals Gap cannot be taken at more than 15mph, literally. To be honest, the Grom is more suited for the Gap than a Panigale.

Mutt1979 · Apr 27, 2015

Pani Dropper said:
Although I agree with what you're saying, your numbers are wrong. The 1199/1299 redline at 11,500 and the R models go to 12,000.

Sorry, my bad, at peak power!!

Buliwyf · Apr 27, 2015

slickwill said:
In some of the actual timed testing that I've seen the SL was at redline at 192mph and ran out of revs before power. The 39T mathematically would give it a chance for a few more MPH before redline. Whether or not it can turn the 39T at those speeds will take testing. It's a tough call at which will work better but you get two runs so I'd probably try both.

I thought the R's were tested and ran 201mph on GPS?

I'd be miffed if I redlined 8mph under 200. That stinks. Having a legit, verified, 200mph+ SBK was a big draw of the new R models. Bummer.

slickwill · Apr 27, 2015

Buliwyf said:
I thought the R's were tested and ran 201mph on GPS?

I hadn't seen that anywhere but it may be true.

Chaotic · Apr 27, 2015

Is Ducati not part of that "Gentleman's Agreement" to limit all bikes to 186mph (in cases where they aren't HP limited to less than that)?

Or is it just the Jap bikes?

slickwill · Apr 27, 2015

Chaotic said:
Is Ducati not part of that "Gentleman's Agreement" to limit all bikes to 186mph (in cases where they aren't HP limited to less than that)?

Or is it just the Jap bikes?

When they tested the 2013 1199R at COTA the speedo stopped moving at 186mph but the bike kept pulling above that (allegedly).

gman74 · Apr 27, 2015

Chaotic said:
...it is a stretch of road that has 311 curves in 11 miles...QUOTE]

Stat correction: 318 turns in 11 miles

Chaotic · Apr 28, 2015

gman74 said:
Chaotic said:

...it is a stretch of road that has 311 curves in 11 miles...QUOTE]

Stat correction: 318 turns in 11 miles

Click to expand...

Thanks

I knew it was some .... like that but it has been a while since ive been there. I actually avoid the Gap because of all the cops and squids.

The mountains don't begin and end at the Gap. There are tons of good riding roads all over NE TN, NW NC and NE GA that aren't as populated and don't get as much attention from the cops.

1299 and 1299s still get ...... 39 tooth sprocket

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