Register Community Calendar Today's Posts Search

Go Back   GZ 250 Forums > General Motorcycle-Related > Beginners

Reply
 
Thread Tools Display Modes
Old 12-04-2011, 10:54 AM   #11
Gz Rider
Senior Member
 
Join Date: Aug 2011
Posts: 852
Re: Target fixation, rain and failure to negotiate a curve :

...
__________________
***Alert - This person is a douche. Use these comments and advice at your own risk***



Login or Register to Remove Ads
Gz Rider is offline  
Reply With Quote
Old 12-04-2011, 12:10 PM   #12
greatmaul
Senior Member
 
Join Date: Nov 2011
Location: Sacramento, CA
Posts: 296
Re: Target fixation, rain and failure to negotiate a curve :

Quote:
Originally Posted by JWR
This picture is after the fog had cleared enough to resume riding.
That is Ed with a yellow rain jacket at the end of the pull off.
wow! I can actually barely make out a yellow jacket there. Can't imagine what it was like *before* it cleared up. Thanks for the advice on rain riding. I just have to trust the bike and the tires. So far they've always been more than up to the task!
greatmaul is offline  
Reply With Quote
Old 12-04-2011, 03:26 PM   #13
Water Warrior 2
Senior Member
 
Join Date: Dec 2006
Location: Squamish B.C Canada
Posts: 11,409
Re: Target fixation, rain and failure to negotiate a curve :

Quote:
Originally Posted by JWR
This picture is after the fog had cleared enough to resume riding.
That is Ed with a yellow rain jacket at the end of the pull off.

That is just plain frightening.



Login or Register to Remove Ads
Water Warrior 2 is offline  
Reply With Quote
Old 12-04-2011, 03:39 PM   #14
Water Warrior 2
Senior Member
 
Join Date: Dec 2006
Location: Squamish B.C Canada
Posts: 11,409
Re: Target fixation, rain and failure to negotiate a curve :

Quote:
Originally Posted by JWR
The bike will usually handle beyond our ability to ride it.
No truer words have been spoken. I "thought" I had a good handle on the Vstrom in the twisties. Then I changed my riding position and used more body english in curves. I was very surprised how much more speed I could maintain and never feel that the bike was reaching it's limits. But I did find my limits. I won't be going there again any time soon. But it was fun while it lasted.
Water Warrior 2 is offline  
Reply With Quote
Old 12-04-2011, 05:18 PM   #15
JWR
Senior Member
 
JWR's Avatar
 
Join Date: Jan 2009
Location: Louisville, TN
Posts: 1,413
Re: Target fixation, rain and failure to negotiate a curve :

The tires that I am running now have a 50 degree lean angle in the dry and 41 in the wet.

More than enough for an old and slow rider.
__________________
Jerry

Truth is there are lots of great bikes available
and not nearly as many good riders out there riding them...
"A man's got to know his limitations..."



Login or Register to Remove Ads
JWR is offline  
Reply With Quote
Old 12-05-2011, 04:27 AM   #16
greatmaul
Senior Member
 
Join Date: Nov 2011
Location: Sacramento, CA
Posts: 296
Re: Target fixation, rain and failure to negotiate a curve :

Quote:
Originally Posted by JWR
The tires that I am running now have a 50 degree lean angle in the dry and 41 in the wet. More than enough for an old and slow rider.
wow, you can look stuff like that up?? I had no idea. I'm going to look for my tires. It might give me a bit more confidence. I thought I was shooting for maybe a 10 or 15 degree lean as max in the rain.
greatmaul is offline  
Reply With Quote
Old 12-05-2011, 04:57 AM   #17
JWR
Senior Member
 
JWR's Avatar
 
Join Date: Jan 2009
Location: Louisville, TN
Posts: 1,413
Re: Target fixation, rain and failure to negotiate a curve :

Interesting read.

Sometimes the motorcycle tire makers will give a maximum lean angle for a particular tire. For instance, in May 2009 Michelin claims a maximum lean angle of 50.6 degrees on dry pavement and 41.9 degrees on wet pavement "as measured at the Michelin test track" for their Pilot Power sportbike tires. One might guess that the Michelin test track's pavement has less sand and better maintenance than standard street pavement, but that's purely a guess. In any case, that gives a coefficient of friction of 1.2 on dry pavement and .90 on wet pavement.

BMW's S1000RR sportbike has a traction-control mechanism which measures lean angle and restricts power when the angle exceeds a predetermined limit. Rain mode allows 38 degrees of lean, corresponding to a coefficient of friction of .78; sport mode allows 45 degrees, ? = 1; race mode allows 48 degrees, ? = 1.1; and slick mode gives 53 degrees, ? = 1.3
__________________
Jerry

Truth is there are lots of great bikes available
and not nearly as many good riders out there riding them...
"A man's got to know his limitations..."
JWR is offline  
Reply With Quote
Old 12-05-2011, 01:08 PM   #18
Water Warrior 2
Senior Member
 
Join Date: Dec 2006
Location: Squamish B.C Canada
Posts: 11,409
Re: Target fixation, rain and failure to negotiate a curve :

Modern Research and Design sure beats the old Trial by Error method.
Water Warrior 2 is offline  
Reply With Quote
Old 12-05-2011, 09:33 PM   #19
mole2
Senior Member
 
mole2's Avatar
 
Join Date: Dec 2009
Location: Longs, SC
Posts: 1,469
Re: Target fixation, rain and failure to negotiate a curve :

Quote:
Originally Posted by Water Warrior
Modern Research and Design sure beats the old Trial by Error method.
Except when it breaks and the rider has never developed the skills to deal with it.


__________________
2009 V-Star 650 Silverado Pearl White
2007 Suzuki GZ250 Black (sold)
mole2 is offline  
Reply With Quote
Old 12-10-2011, 06:07 PM   #20
Way
Senior Member
 
Join Date: Jun 2011
Location: Northwestern VT
Posts: 224
Re: Target fixation, rain and failure to negotiate a curve :

Quote:
Originally Posted by greatmaul
Quote:
Originally Posted by JWR
I have a talk with myself every time I ride to keep my head in the game.
That's a very good idea. I'll definitely do that. I think a big part of the problem I had was that I was not concentrating on riding but on other things.

Quote:
Originally Posted by Water Warrior
Sounds like a great reason for riding lessons from an experienced instructor.
good point! I've had the MSF class and was actually hoping it would be raining then, because I've heard that if you take the basic rider course in the rain it helps teach you not to be afraid of and over-react to the rain. Maybe I should sign up for the ERC. I do have a couple thousand miles under my belt.

Thanks everyone for the good thoughts and wishes. Much appreciated!
Even though I've passed the motorcycle license course and have my endorsement, I still do slow speed maneuvers every now and then in season just to keep sharp. It's also kind of fun. Might help you as well to keep in touch with the bike. I plan on more when Spring comes around too.
__________________
-- Wayne
Way is offline  
Reply With Quote
Reply




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 05:12 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.