what is the maximum lean angle available for a S4R?

[DNAspark99]

I'm actually looking for the stock ducati graphic (2005 S4R) depicting the measurement of the angle between the ground and the pegs. I swear I've seen this in one of the manuals before, but can't find it now. Anyone know where to find what I'm thinking of? Or am I just imagining things again??!

[Rameses]

Maximum lean is 90 degrees.

I wouldn't recommend it though.

[vw151]

In stock form,  the pegs fold up.  I can tell you from experience on my S2R1000 the max lean angle is when the peg is folded up against your foot.  If you get better rear sets with higher pegs the lean angle increases.   I don't know what degree that is but bottom line is you can lean a monster over until the hard parts start to lift the rear wheel off the ground.  

Having said that, you'll go through the corner faster if you get off the bike and use less lean angle.  





Those 2 pics I have some pretty good lean angle.  That is in the keyhole at Mid-OH.  I think if they would have taken pics of me going through the carousel you would have seen some serious lean angle though.  I literally almost lifted the rear wheel off the ground with the peg that day.  I decided to work on my body position after that. 

[Max LeanAngle]

Whatever that is when I ride it

[He Man]

if you go to 0:50 you get a nice graph of lean angle vs rear tire. its a skewed graph since the edge of the track is raised.

It also shows the lean angle at 90degrees and the amount of traction available.



i dont recommend exceeding 90 degrees.

[hackers2r]

^Great display of the graph!  I was thinking there was going to be some real data collection going on.  haha.  Glad you were ok.

[slyfox]

Maximum lean is 90 degrees.

I've tried this & ....... survive

[DoubleEagle]

I believe 45 degrees is the maximum lean angle for max traction.

Dolph     

[DNAspark99]

ok thanks guys... but it turns out it's not necessary anymore :p

believe it or not, this was actually intended to be part of a courtroom defense against allegations of 'excessive speeding' and 'riding with undue care & attention'.    

don't get me wrong, I definitely WAS speeding to some extent and freely admit to that - just not *excessively* speeding, as the cop has guesstimated the speeds involved (no radar).
Now, I've actually gone and measured the corner radius in question, and using some simple(?!) physics for calculating the required lean angle at a given speed through a corner with a known radius, I've determined that at the speeds I've been accused of, the required lean angle would be 72 degrees!

As it turns out, it's been published by Michelin tire co. that the MAX available lean for maintaining traction with their pilot power 2CT's is 51.2 degrees! (pretty close to where He-Man there falls off his chart!)

So either I'm quite the miraculous rossi-wannabe, or the officer was overly generous in his 'speed by sight' calculations.... hmmmm.... wonder which one it is?

I just hope I get a judge who understands physics!

[floyd turbo]

Maximum lean is 90 degrees.

I wouldn't recommend it though.

I did this yesterday (on my 620). It is the max.  The bike would not go any further.

[redxblack]

you guys need to find a more crowned road surface. You can go more than 90 if you REALLY try!


and using math and science to beat a guesstimate ticket is awesome. 

[akmnstr]

Let us know what the judge rules in court. 

[sbrguy]

So either I'm quite the miraculous rossi-wannabe, or the officer was overly generous in his 'speed by sight' calculations.... hmmmm.... wonder which one it is?

I just hope I get a judge who understands physics!

hoping for a judge that understands basic physics and for the   to admit that their "guestimation of speed" was overly generous

That is the funniest line on the DMF EVER!!!

Good luck hope all goes well

[Monsterlover]

+1

[GLantern]

Following this just so i can see the outcome of the case!!