Lean angle on tires - MVAgusta.net
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post #1 of 64 (permalink) Old 05-30-2019, 08:50 PM Thread Starter
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Lean angle on tires

Here is one for all you race guys. We have seen extreme lean angles with the top racers especially the MotoGP guys. (56 to 61 degrees is common) They are on top of the line race slicks so for us mortal people what would be the most lean angle to be achieved on a set of DOT tires, say Michelin Pilot Power 3? Is there any type of gadget that can be used on a Bike to determine lean angle?
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post #2 of 64 (permalink) Old 05-31-2019, 01:27 AM
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Can’t say I’ve heard of any gadget that could do what you are asking.
I’d suggest take your bike to a track where the danger is managed and minimal and lean as far as your heart and balls will allow.
Over many laps and much time the lean angle will increase. There will be a limit there somewhere though.
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post #3 of 64 (permalink) Old 05-31-2019, 03:38 AM
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Number 2 Craftsman tools makes an angle finder with a magnetic base or can be hung on a wire . BUT, how to see it? use the magnetic base then borrow(hopefully you know someone that has one ) One of those sport cameras( sorry 4:30 am no sleepforget the name brand) and record the angle finder readings as your doing laps on track day.
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post #4 of 64 (permalink) Old 05-31-2019, 03:53 AM
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There's an App for everything EatSleepRIDE Motorcycle GPS Says it records Lean Angle but may well turn out like many Apps to over promise and under deliver

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post #5 of 64 (permalink) Old 05-31-2019, 04:29 AM
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Pirelli diablo superbiker app, iphone/android.
Give it a try.
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post #6 of 64 (permalink) Old 05-31-2019, 05:41 AM
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Hmmm! I’m reading the question differently.
Number2 is asking if there’s a gadget that will give you maximum lean angle for a specific tyre.
That will attach to a bike.
??????


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post #7 of 64 (permalink) Old 05-31-2019, 05:57 AM
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Quote:
Originally Posted by AusMV312 View Post
Hmmm! Iím reading the question differently.
Number2 is asking if thereís a gadget that will give you maximum lean angle for a specific tyre.
That will attach to a bike.
??????
While I get your point, What is considered a gadget?
gadget
/ˈɡadʒɪt/
a small mechanical or electronic device or tool, especially an ingenious or novel one.
-google

You can go the expensive route like a seperate device. Or download a free app, mount your phone in a phoneholder.
Take a everyday ride to work and see if it works. If its sh!t, then have a look at a more serious option.
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post #8 of 64 (permalink) Old 05-31-2019, 06:20 AM
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Or....get a datalogger and attach one input to an inertial measurement unit .... hmmm, newer bikes have IMUs for traction control and cornering ABS...just have to tap into that signal .....

Any one here a data acquisition expert? Most high end race teams have one on staff....

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post #9 of 64 (permalink) Old 05-31-2019, 06:37 AM
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I know this from personal experience...at 90 degrees there is no traction.......

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post #10 of 64 (permalink) Old 05-31-2019, 07:10 AM Thread Starter
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My primary question was regarding street tires and their limit related to lean angle. I have felt the edge of my front tire while riding at the Gap but never really figured out how far I was leaned over. Is 45degrees to high a number for street tires?

Chuck maybe you could demonstrate that 90 degree lean angle this year
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