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09-27-2012, 04:46 AM   #16561
hooliken
Awesome is a flavor

Joined: May 2007
Location: Smithfield, VA
Oddometer: 2,606

Quote:
 Originally Posted by JimVonBaden Who gives a shit about all this blather? Post some photos! Jim
It may be 205 but I can smell the skin graft from here.............
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"People in this country sleep peaceably in their beds at night because rough men stand ready to do violence on their behalf." George Orwell
2007 950R Super Enduro
2005 450EXC

09-27-2012, 04:58 AM   #16562
klaviator

Joined: May 2008
Location: Huntsville, AL
Oddometer: 5,116
[QUOTE=Bowtie76;19688462]
Quote:
 Originally Posted by klaviator Check your physics, OP is correct 1g. Garvity (1g) acting on moment arm .707 height of upright CoM, must be counteracted by equal moment arm of .707 height of upright CoM (45deg angle) so horizontal accel must also be 1g.
You are correct. For some reason I always thought it was .707 G's for 45 degrees. Since many modern sportbikes are capable of 50+ degrees of lean angle, this means they can pull better than 1 G. This puts them equal to or better than most cars. I had always read that cars with their much larger tire contact patches could pull more lateral Gs than bikes. Most cars pull between .8 and 1 G on the skidpad with a few going higher. Maybe Motorcycle tires are stickier than car tires?
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I ride, Therefore I Am.

klaviator screwed with this post 09-27-2012 at 05:08 AM

09-27-2012, 05:11 AM   #16563
spezjag

Joined: Dec 2004
Location: Northern Virginia, USA
Oddometer: 6,922
Quote:
 Originally Posted by hooliken It may be 205 but I can smell the skin graft from here.............
When it got back to the garage, the Harley told his friends "I had to lay them down."
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Gary

Only a motorcyclist knows why a cheetah hangs its head out the window. - Peterman

09-27-2012, 05:13 AM   #16564
Grreatdog

Joined: Apr 2007
Location: Annapolis, MD
Oddometer: 8,005
Quote:
 Originally Posted by hooliken Who gives a shit about his juristiction. Who gives a shit what laser/radar shobadedowob gear he has on the bike. Only thing I wanna know is, Where do I sign up? Might be the most awesome job ever!
My motorcop friends say the only part that sucks about that job is when you on the bike all you do is work traffic. But, yes, that looks like a far more entertaining way to pass a work day than chained to this computer crunching numbers. Even if all you do is hand out tickets and direct traffic around crashes, at least you get to ride a sweet bike.
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640E, MXC200, XT200

09-27-2012, 05:29 AM   #16565
LuciferMutt
Rides slow bike slow

Joined: Aug 2008
Location: New(er) Mexico
Oddometer: 10,570
Quote:
 Originally Posted by hooliken It may be 205 but I can smell the skin graft from here.............
Nope. There are plenty of follow up pics. They were going too damn slow to slide very far.
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Badasses might screw with another badass. Nobody screws with a nut job. -- Plaka

09-27-2012, 05:44 AM   #16566
scottie boy
Homebrew Guru

Joined: Feb 2005
Location: Acworth, GA
Oddometer: 1,702
Quote:
 Originally Posted by cardoctor1

Wow what a fu&k up that was. His insurance company is going to love him. I doubt your average paint shop would even try to match that CVO paint job. Everything would have to be special ordered from Harley. CHA-CHING
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scottie boy screwed with this post 09-27-2012 at 03:11 PM

09-27-2012, 05:59 AM   #16567
RDTCU

Joined: Jun 2012
Location: South Carolina
Oddometer: 2,007
[QUOTE=klaviator;19690703]
Quote:
 Originally Posted by Bowtie76 You are correct. For some reason I always thought it was .707 G's for 45 degrees. Since many modern sportbikes are capable of 50+ degrees of lean angle, this means they can pull better than 1 G. This puts them equal to or better than most cars. I had always read that cars with their much larger tire contact patches could pull more lateral Gs than bikes. Most cars pull between .8 and 1 G on the skidpad with a few going higher. Maybe Motorcycle tires are stickier than car tires?
Good motorcycle tires are generally much softer than car tires and run a hotter contact patch.
If they were both on slicks, it would be a closer margin.
Also, a car has a basically fixed CG height, while the bikes is lowered by leaning, even more so when the rider hangs off the inside, in which case the effective lean angle (and therefore lateral acceleration) can be larger than the physical clearance limitations of the bike itself.

RDTCU screwed with this post 09-27-2012 at 06:18 AM

09-27-2012, 06:11 AM   #16568
PFFOG
Richard Alps-aholic

Joined: Aug 2005
Location: Western NY, further from NYC than 6 entire states
Oddometer: 1,742
Quote:
 Originally Posted by spezjag When it got back to the garage, the Harley told his friends "I had to lay them down." to avoid an accident

Fixed it for ya
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Tuscany 2010
Maritime Alps and Vosges

Richard

09-27-2012, 06:17 AM   #16569
Orygunner

Joined: Apr 2012
Location: Western Oregon
Oddometer: 78
[QUOTE=RDTCU;19691005]
Quote:
 Originally Posted by klaviator Motorcycle tires are generally much softer than car tires... If they were both on slicks, it would be a closer margin. Also, a car has a basically fixed CG height, while the bikes is lowered by leaning, even more so when the rider hangs off the inside, in which case the effective lean angle (and therefore lateral acceleration) can be larger than the physical clearance limitations of the bike itself.
Wrong, but a common misconception. Motorcycle tires are a HARDER rubber compound than most automobile tires.

Look up the durometer (rubber hardness rating) for yourself. Street motorcycle tires generally have a durometer rating of around 65-70. Car tires are generally less (softer) than that.

...Orygunner...
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2005 Kawasaki Vulcan 2000 Limited
1998 Honda Nighthawk 750
Quote:
 Originally Posted by markk53 Actually I'm not sure the Vulcan qualifies as a bike... two wheeled tank, maybe....With the 2000's clearance I'm not sure the Vulcan could make it around the tightest curves on a track without having to stop and back up...

09-27-2012, 06:20 AM   #16570
RDTCU

Joined: Jun 2012
Location: South Carolina
Oddometer: 2,007
Quote:
 Originally Posted by Orygunner Wrong, but a common misconception. Motorcycle tires are a HARDER rubber compound than most automobile tires. Look up the durometer (rubber hardness rating) for yourself. Street motorcycle tires generally have a durometer rating of around 65-70. Car tires are generally less (softer) than that. ...Orygunner...
I caught that, and I didn't mean harley/cruiser etc tires, I was leaning more towards sportbike tires, you know, the guys that are actually USING the whole tire. I can tell you how soft and sticky the edges of a Michelin Pilot Power 2CT are...
And the contact patch on a bike runs much hotter than most auto street tires, as the contact pressure is higher on a bike.

 09-27-2012, 07:05 AM #16571 STUFF2C We Ain't Left Yet!!     Joined: Aug 2004 Location: O-lando Oddometer: 2,060 I'm w JIM... who gives a shit how hard your fkn tires are!!!! PICTUES!!!!!!!! __________________ Thanks to the Interstate Highway System, it is now possible to travel from coast to coast without seeing anything. -- Charles Kuralt I never plan a ride, just the destination and that's always subject to change.
09-27-2012, 07:13 AM   #16572
Gummee!
That's MR. Toothless

Joined: May 2004
Location: NoVA for now...
Oddometer: 27,155
Quote:
 Originally Posted by klaviator You DO have to be riding FASTER than them for it to happen
Humph

Lots of fail in this one...

M
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I'm a cyclist that rides motos, not a moto rider that rides bicycles.

09-27-2012, 07:14 AM   #16573
Riteris
Dessert Runner

Joined: Aug 2002
Location: The Nation's Capital
Oddometer: 2,766
Quote:
 Originally Posted by tedder huge dildo.
I think they meant the thing on the BACK of the bike.
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Chris

I am taking the advice of all those people that told me, "Hey kid, why don't you go play in traffic!"

09-27-2012, 07:14 AM   #16574
Gummee!
That's MR. Toothless

Joined: May 2004
Location: NoVA for now...
Oddometer: 27,155
Quote:
 Originally Posted by STUFF2C I'm w JIM... who gives a shit how hard your fkn tires are!!!! PICTUES!!!!!!!!
I don't see any pics in this post. You can't bitch if you don't contribute.

M
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I'm a cyclist that rides motos, not a moto rider that rides bicycles.

09-27-2012, 07:20 AM   #16575
tedder
irregular

Joined: Jun 2004
Location: Los Angeles (ktown)
Oddometer: 8,797
Quote:
 Originally Posted by Riteris I think they meant the thing on the BACK of the bike.
Well played.

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