ADVrider

Go Back   ADVrider > Riding > The perfect line and other riding myths
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-16-2013, 01:31 AM   #1471
Motogymkhanaman
Gnarly Adventurer
 
Joined: Aug 2012
Location: Stratford on Avon, England
Oddometer: 211
Check out this video from Japan.

Mother v Daughter in the novice class is something you will never see on the racing circuit!

__________________
Dedicated to the wonderful sport of Moto Gymkhana
Motogymkhanaman is offline   Reply With Quote
Old 10-16-2013, 09:02 AM   #1472
Andyvh1959
Cheesehead Klompen
 
Andyvh1959's Avatar
 
Joined: Feb 2012
Location: Da frozen tundra, 1.5 mile west of Lambeau
Oddometer: 610
Interesting video. Be interesting too, to ask the riders, "do you use countersteering to manuever the bike" in response to riders who feel they don't countersteer, or don't need to countersteer.
__________________
When life throws you a curve,.....lean into it!
42+ year rider, 22+ year MSF Coach, Street, Dirt, Ice, ride em all!
Andyvh1959 is offline   Reply With Quote
Old 10-16-2013, 10:15 AM   #1473
Motogymkhanaman
Gnarly Adventurer
 
Joined: Aug 2012
Location: Stratford on Avon, England
Oddometer: 211
A quick question for Andyvh1959, "can we counter-steer when the steering is at full-lock?"

Traditionally we are taught that to steer the bike we have to turn the handlebars in the direction opposite to that which we want to turn. If the bars are at full-lock in a left turn then we are prevented from turning them any further so that we can initiate a right turn.

Full-lock is a quite normal situation in Moto Gymkhana so how are we able to transition so easily from full lock in one direction to full lock in the other without the ability to counter steer?
__________________
Dedicated to the wonderful sport of Moto Gymkhana
Motogymkhanaman is offline   Reply With Quote
Old 10-16-2013, 08:45 PM   #1474
Andyvh1959
Cheesehead Klompen
 
Andyvh1959's Avatar
 
Joined: Feb 2012
Location: Da frozen tundra, 1.5 mile west of Lambeau
Oddometer: 610
That's because, to INITIATE a lean condition on a motorcycle, and to do it quickly and accurately, you have to countersteer. Especially evident in the video when the riders make quick transitions from left to right, right to left. THAT takes an assertive countersteer effort.

Now, when the bike is already leaned over to full lock, countersteer action at the handgrips is clearly limited. At that point the minimum radius the bike can manuever is mostly due to the lean angle and steering head angle already established and the speed of the bike.

Can't say I have done it to know for certain. But say the bike is at a near full lean left, slow speed so the handlebar is TURNED full left against the stop. Countersteering input on the left (down) grip would actually turn the fork away from full lock. In some cases of riding, a regular steering input is needed to make the bike stand up quickly. If the fork is already at full lock left, there is no additional steer angle possible to make the bike stand up. But I bet some front wheel brake will make the bike stand up at that point.
__________________
When life throws you a curve,.....lean into it!
42+ year rider, 22+ year MSF Coach, Street, Dirt, Ice, ride em all!
Andyvh1959 is offline   Reply With Quote
Old 10-16-2013, 11:58 PM   #1475
Harvey Krumpet
Studly Adventurer
 
Joined: Dec 2011
Location: The Shaky Isles
Oddometer: 860
That vid rocks MGman.
Harvey Krumpet is offline   Reply With Quote
Old 10-18-2013, 02:07 AM   #1476
Harvey Krumpet
Studly Adventurer
 
Joined: Dec 2011
Location: The Shaky Isles
Oddometer: 860
Fill my mouth with a fistful of frustration. Shiga. Gaaaaah!


Harvey Krumpet is offline   Reply With Quote
Old 10-19-2013, 11:19 AM   #1477
ryder1
Gnarly Adventurer
 
ryder1's Avatar
 
Joined: Nov 2012
Location: SEPA
Oddometer: 130
Came across this thread the other day and am on page 14 in my reading. It seems really cool and a good way to practice skills.

So, is there anyone in the SEPA area doing this?
ryder1 is offline   Reply With Quote
Old 10-19-2013, 01:30 PM   #1478
ryder1
Gnarly Adventurer
 
ryder1's Avatar
 
Joined: Nov 2012
Location: SEPA
Oddometer: 130
Here is a site that I came across that has many different track layouts.

http://www.motorkhana-wa.com/ and take a look in the document section. There is a 90 page pdf with track layouts.
ryder1 is offline   Reply With Quote
Old 10-19-2013, 04:11 PM   #1479
Thanantos
Ride hard.
 
Thanantos's Avatar
 
Joined: Jul 2008
Location: Michigan
Oddometer: 3,598
Quote:
Originally Posted by Andyvh1959 View Post
Interesting video. Be interesting too, to ask the riders, "do you use countersteering to manuever the bike" in response to riders who feel they don't countersteer, or don't need to countersteer.
O God, are we still arguing this?

__________________
1999 DR350SE

2013 V-Strom
Thanantos is offline   Reply With Quote
Old 10-19-2013, 04:50 PM   #1480
Chisenhallw
Avowed Pussbag
 
Chisenhallw's Avatar
 
Joined: Feb 2007
Location: I've narrowed it down to 'earth'. Or 'Baltimore'.
Oddometer: 4,709
Quote:
Originally Posted by ryder1 View Post
Came across this thread the other day and am on page 14 in my reading. It seems really cool and a good way to practice skills.

So, is there anyone in the SEPA area doing this?
SEPA - SouthEast Pennsylvania?
__________________
2001 Kawasaki Concours
2001 Suzuki SV650
MD ABC TOR
I review motorcycles for 2wheelsandamotor.com
Chisenhallw is offline   Reply With Quote
Old 10-19-2013, 04:54 PM   #1481
ryder1
Gnarly Adventurer
 
ryder1's Avatar
 
Joined: Nov 2012
Location: SEPA
Oddometer: 130
Quote:
Originally Posted by Chisenhallw View Post
SEPA - SouthEast Pennsylvania?

Correct.
ryder1 is offline   Reply With Quote
Old 10-19-2013, 04:56 PM   #1482
Chisenhallw
Avowed Pussbag
 
Chisenhallw's Avatar
 
Joined: Feb 2007
Location: I've narrowed it down to 'earth'. Or 'Baltimore'.
Oddometer: 4,709
Was thinking of getting a few folks here in Baltimore together to go around some cones. Just a basic figure-8. You willing to come down to B'more?
__________________
2001 Kawasaki Concours
2001 Suzuki SV650
MD ABC TOR
I review motorcycles for 2wheelsandamotor.com
Chisenhallw is offline   Reply With Quote
Old 10-19-2013, 07:39 PM   #1483
ryder1
Gnarly Adventurer
 
ryder1's Avatar
 
Joined: Nov 2012
Location: SEPA
Oddometer: 130
I'm about 2 hours away so it would depend on start time and location.
ryder1 is offline   Reply With Quote
Old 10-20-2013, 01:04 PM   #1484
ryder1
Gnarly Adventurer
 
ryder1's Avatar
 
Joined: Nov 2012
Location: SEPA
Oddometer: 130
Went out today and made a few mistakes riding but also made the gp8 course 10feet shorter (brainfart). I realized this when I setup the circle of truth. Once I ran that several times I was dizzy. I don't think it is a holdover from Friday (at least I hope not).

I did find that I am better with going to the right than the left. I guess all in all not too bad for the first time out. Need to get some solo cups and a bag of rocks to put in the cups to keep them from flying away. And officer freindly came through the parking lot I waived he waived back and continued on.
ryder1 is offline   Reply With Quote
Old 10-20-2013, 05:54 PM   #1485
ohgood
Beastly Adventurer
 
ohgood's Avatar
 
Joined: Sep 2010
Location: alabama
Oddometer: 2,112
Quote:
Originally Posted by ryder1 View Post
Went out today and made a few mistakes riding but also made the gp8 course 10feet shorter (brainfart). I realized this when I setup the circle of truth. Once I ran that several times I was dizzy. I don't think it is a holdover from Friday (at least I hope not).

I did find that I am better with going to the right than the left. I guess all in all not too bad for the first time out. Need to get some solo cups and a bag of rocks to put in the cups to keep them from flying away. And officer freindly came through the parking lot I waived he waived back and continued on.
excellent ! more of this!
__________________
Donkeys are flying
ohgood is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
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 On

Forum Jump


Times are GMT -7.   It's 05:18 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014