Go Back   Two Wheel Fix > Riding > Street

Reply
 
Thread Tools Display Modes
Old 12-15-2009, 01:34 PM   #1
OTB
The Man
 
OTB's Avatar
 
Join Date: Feb 2008
Location: CrabTown USA
Moto: 00 Bimota DB4
Posts: 823
Default For the doubting Thomas

http://www.msgroup.org/forums/mtt/to...p?TOPIC_ID=311

And a little more math for high-speed turns:

http://www.physicsforums.com/showthread.php?t=88999

And this paper, which is primarily concerns itself with the role of yaw inputs, but explains and models the 6 forces (not including rider position, which is actually a seventh parameter) in the complex role of turning a motorcycle.

http://www.dinamoto.it/DINAMOTO/8_on...ringtorque.htm
OTB is offline   Reply With Quote
Old 12-15-2009, 01:54 PM   #2
CasterTroy
................
 
CasterTroy's Avatar
 
Join Date: Nov 2008
Location: NC
Posts: 3,028
Default

Look.....I paid this Asian enough to buy himself high for a month so I could pass physics III, and struggled enough with dynamics and earned a degree in Architectural Engineering to NEVER make provisions in life to EVER revisit complex dynamics/math

As long as YOU have it all figured out, I’m golden
__________________
“Being tolerant does not mean that I share another one’s belief. But it does mean that I acknowledge another one’s right to believe, and obey, his own conscience.”
Viktor Frankl
CasterTroy is offline   Reply With Quote
Old 12-15-2009, 02:15 PM   #3
Tmall
Aspiring Rapper
 
Tmall's Avatar
 
Join Date: Nov 2008
Location: Halifax, NS
Moto: '12 CB1000R
Posts: 3,569
Default

Quote:
Originally Posted by OTB View Post
http://www.msgroup.org/forums/mtt/to...p?TOPIC_ID=311

And a little more math for high-speed turns:

http://www.physicsforums.com/showthread.php?t=88999

And this paper, which is primarily concerns itself with the role of yaw inputs, but explains and models the 6 forces (not including rider position, which is actually a seventh parameter) in the complex role of turning a motorcycle.

http://www.dinamoto.it/DINAMOTO/8_on...ringtorque.htm

How come none of that takes into account weight transfer and suspension movement? It's always been my understanding that letting off the throttle upsets the suspension and loads the front wheel. The weight transfer and centrifugal force is what causes the bike to go wider.

As well, while decelerating, you're still carrying forward velocity which causes the bike to want to go to the outside of the corner. How would you transfer that force by decelerating ?
Tmall is offline   Reply With Quote
Old 12-15-2009, 03:21 PM   #4
smileyman
White Trash Hero
 
smileyman's Avatar
 
Join Date: Mar 2008
Location: NW Arkansas
Moto: Buell 1125R Porco Rosso Edition
Posts: 4,895
Default

When i want to tighten my line I simply hang my balls off the inside of the bike. My scrotum acts as a sail and....OOOO shuthefuckup!

Really guys why get heated. Lets just discuss. dont assume street or track. We all know you want a smooth increase in throttle from apex to exit on track. But we can all share without shouting down anyone elses ideals.
__________________

Arkriders.com
To be the best you must first be willing to risk the worst!
smileyman is offline   Reply With Quote
Old 12-15-2009, 03:25 PM   #5
OTB
The Man
 
OTB's Avatar
 
Join Date: Feb 2008
Location: CrabTown USA
Moto: 00 Bimota DB4
Posts: 823
Default

Quote:
Originally Posted by Tmall View Post
How come none of that takes into account weight transfer and suspension movement? It's always been my understanding that letting off the throttle upsets the suspension and loads the front wheel. The weight transfer and centrifugal force is what causes the bike to go wider.

As well, while decelerating, you're still carrying forward velocity which causes the bike to want to go to the outside of the corner. How would you transfer that force by decelerating ?
Re: weight transfer. Remember what I said: using SMALL inputs...."Depending on the bike, when I'm droning down the road from point A to B, I rest my throttle-hand index finger on the throttle housing; I can then use the support to fine-tune both my speed and arc through turns without making gross changes.....the name of the game is SMOOOOTH......."

Slamming shut the throttle will definitely upset things, no doubt about it....we're talking FINE THROTTLE CONTROL... for fine adjustments. Not hobby-horsing down the road.

Argue with me if you want, but it is what it is....go TRY IT.

Cheeze. Same crap happened in the clutchless downshifting thread.....
OTB is offline   Reply With Quote
Old 12-15-2009, 03:27 PM   #6
OTB
The Man
 
OTB's Avatar
 
Join Date: Feb 2008
Location: CrabTown USA
Moto: 00 Bimota DB4
Posts: 823
Default

Now I remember why I shut up here for so long..............

I'll leave you all to debating how many angels on the head of a pin...see ya..........
OTB is offline   Reply With Quote
Old 12-15-2009, 03:37 PM   #7
smileyman
White Trash Hero
 
smileyman's Avatar
 
Join Date: Mar 2008
Location: NW Arkansas
Moto: Buell 1125R Porco Rosso Edition
Posts: 4,895
Default

I still love ya OTB. Got to point out platoniclly cause some on here dont know the difference.

I use my index finger on the brake lever bracket as a brace to keep my throttle smooth. But what we are discussing does work and way better than a major change like a countersteering input.
__________________

Arkriders.com
To be the best you must first be willing to risk the worst!
smileyman is offline   Reply With Quote
Old 12-15-2009, 03:45 PM   #8
Rider
Moto GP Star
 
Join Date: Feb 2008
Posts: 12,156
Default

Quote:
Originally Posted by OTB View Post
Now I remember why I shut up here for so long..............

I'll leave you all to debating how many angels on the head of a pin...see ya..........
Don't worry about these guys OTB. If they really knew it all they'd be MotoGP champions.
Rider is offline   Reply With Quote
Old 12-19-2009, 09:32 AM   #9
karl_1052
sergeant hatred
 
karl_1052's Avatar
 
Join Date: Jul 2009
Location: Ottawa
Moto: The bus
Posts: 2,723
Default

Quote:
Originally Posted by OTB View Post
Now I remember why I shut up here for so long..............

I'll leave you all to debating how many angels on the head of a pin...see ya..........
Wow. So in a discussion, someone has a different opinion than you, so you take a suck and leave? You must be a hoot in real life.

Quote:
Originally Posted by Rider View Post
Don't worry about these guys OTB. If they really knew it all they'd be MotoGP champions.
Where are your and OTBs MotoGP champ trophies then?
__________________
My wife was afraid of the dark...then she saw me naked and now she's afraid of the light.
karl_1052 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:18 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.