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Cornering Fast

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KingKong
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PostPosted: 23:15 - 08 Mar 2012    Post subject: Cornering Fast Reply with quote

Hi

Have been learning to shift my weight 'off my seat' into the direction of the turn, keeping in [parallel] line with the bike when cornering at speed. However, on a few occasions I didn't shift my weight, but instead tucked in as my bike curved into that corner. It felt more natural than shifting off my seat and seemed to work.

BUT, am I deceived? Would tucking into the bike, rather than shift my weight off the seat, cause it to topple/low side?
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CaNsA
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PostPosted: 23:22 - 08 Mar 2012    Post subject: Reply with quote

oh man, i know this but wish i had a pic to help explain why hanging your arse off the bike while cornering keeps the bike stable.

Think about where the weight goes and the direction of g-force.

mspaint special Very Happy

https://i41.tinypic.com/qp342t.png
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KingKong
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PostPosted: 23:28 - 08 Mar 2012    Post subject: Reply with quote

Thank you, CaNsA; so staying on the bike, tucked in when cornering will actually de-stabilise the bike and cause a low-side?
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Welshd1k
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PostPosted: 23:31 - 08 Mar 2012    Post subject: Reply with quote

KingKong wrote:
Thank you, CaNsA; so staying on the bike, tucked in when cornering will actually de-stabilise the bike and cause a low-side?


no ....

Plus you dont have to hang of like a monkey like that to be fast .... I know alot of fast road riders that never get their knee down and i have overtaken people with knee down in corners.... on main roads its pointless just shit your body alittle
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Welshd1k
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PostPosted: 23:32 - 08 Mar 2012    Post subject: Reply with quote

CaNsA wrote:
oh man, i know this but wish i had a pic to help explain why hanging your arse off the bike while cornering keeps the bike stable.





no it doesnt .....
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iMark
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PostPosted: 23:33 - 08 Mar 2012    Post subject: Reply with quote

isn't getting your knee down just for knowing your lean angle ? Razz
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Ariel Badger
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PostPosted: 23:35 - 08 Mar 2012    Post subject: Reply with quote

To be fair that picture looks good until you analyse it, it is just a line between two points (shoulder and tyre contact) you could do the same with anybody cornering regardless of how well they are doing it.
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whitedevil
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PostPosted: 23:35 - 08 Mar 2012    Post subject: Reply with quote

https://www.southbayriders.com/forums/attachment.php?attachmentid=57255&d=1159392380
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bEN_
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PostPosted: 23:42 - 08 Mar 2012    Post subject: Reply with quote

I think it's all over analysed, look at all the various styles in motogp, if they were all on equal machines the gap from 1st to last would probably be 1 second, and thats at motogp level, at our level i doubt it matters to much unless your doing something that is generally unsafe. Confused i think there's to much bollocks talked about it. meh.

from looking at the pics, top left is colin edwards style(ish)
top right, casey stoner?
bottom left, toni elias?
bottom right, lorenzo?

mike hailwood style ftw Thumbs Up
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CaNsA
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PostPosted: 23:46 - 08 Mar 2012    Post subject: Reply with quote

Thats whats i was after dude, gforce, contact patch, center of gravity and all that jazz.

totally pwnd my mspaint special Very Happy

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Souleh
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PostPosted: 23:59 - 08 Mar 2012    Post subject: Reply with quote

[QUOTE=09ZX-6R;234420]so heres how it works...
improper foot and rider position before corner entry and prior to prepping.
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1789.jpg

proper rider and foot position prior to corner prep. (notice the feet moved back to the toes, and your ass slides to mid seat. this straitens the back and shoulders.
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1790.jpg

now to prep for your corner entry. this is where the toe meets the peg nipple and the heel rotates up onto the heel guard. this in turn allows your knee to rotate out correctly with no effort or strain.
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1791.jpg

then slide your entire body to the side of the bike (in this case, to the right) so your asscrack meets the edge of the seat and your chest is inline with the mirror.
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1792.jpg

impropper position aka being crossed up
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1795.jpg

propper position
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1796.jpg

from there you will then lean your body forward and bend your inside elbow and straiten your outside arm.
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1794.jpg

the outside arm and leg should look like this. the elbow straitened but not locked, your knee griping the tank and foot slightly forward on the peg.
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1799.jpg

then relax your body and lean the bike into the turn while looking over your elbow and remaining tucked to the inside of the bike.
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1793.jpg

at this point alot of riders and some new racers are sketchy about hanging off the throttle side because there right hand and arm are unpredictable with maintaining body posture and control. the usuall mistake is this when the body is positioned but the hands are not. notice the bent wrist. causes strain and hard throttle control.
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1801.jpg

the best hand position is this... it maintains control and is totally strain free. quite comfy too.
https://i1229.photobucket.com/albums/ee478/O3dodgesrt4/IMG_1802.jpg[/QUOTE]
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KingKong
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PostPosted: 00:24 - 09 Mar 2012    Post subject: Reply with quote

Thank you for all the help, peeps. Thank you Souleh for the great tips on shifting weight when cornering; although I know this already and am regularly practicing it. I was more concerned with whether it would be a bad idea to abandon shifting off my bike and instead tuck in over my tank, arse on seat...

The picture-reference WhiteDevil shows confused me - I guess here is where I am as thick as two planks.. Embarassed

All I want to know is how likely am I to low-side/slide off if cornering sat squarely on my bike, hunched over the fuel tank, rather than shift my arse off the seat Smile

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Mikey3
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PostPosted: 00:33 - 09 Mar 2012    Post subject: Reply with quote

youd have to be doing something major, or doing it at the wrong place for there to be some sort of lowside, if it was that dangerous EVERYONE would corner hanging off.
The main idea of hanging off is to shift weight to the inside of the bike to help 'pull' the bike round the corner. Your head weighs similar to that of a bowling ball so you can imagine the influence it can have... in certain circumstances.
The knee down bit is to try to keep the bike as upright as possible to be able to power out of the corner sooner, and to do it with controlable stability.
You shouldn't lowside on default if you don't hang off.

Mike
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KingKong
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PostPosted: 00:43 - 09 Mar 2012    Post subject: Reply with quote

mredhead wrote:
youd have to be doing something major, or doing it at the wrong place for there to be some sort of lowside, if it was that dangerous EVERYONE would corner hanging off.
The main idea of hanging off is to shift weight to the inside of the bike to help 'pull' the bike round the corner. Your head weighs similar to that of a bowling ball so you can imagine the influence it can have... in certain circumstances.
The knee down bit is to try to keep the bike as upright as possible to be able to power out of the corner sooner, and to do it with controlable stability.
You shouldn't lowside on default if you don't hang off.

Mike


Awesome, explaining to me like I'm the average six year old seems to work Thumbs Up and I'm supposed to be a Ph.D candidate Embarassed Thank you Smile

mredhead wrote:
Your head weighs similar to that of a bowling ball so you can imagine the influence it can have... in certain circumstances.


Please tell me more about this. Bounce!
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cloric_tzr
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PostPosted: 01:09 - 09 Mar 2012    Post subject: Reply with quote

want ot no more?. . . Razz
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KingKong
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PostPosted: 01:19 - 09 Mar 2012    Post subject: Reply with quote

cloric_tzr wrote:
want ot no more?. . . Razz


What's 'OT'?
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cloric_tzr
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PostPosted: 01:21 - 09 Mar 2012    Post subject: Reply with quote

*to Embarassed
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i dumped my girlfriend the other day! she wouldnt act out one of my fantasy's. all i wanted her to do was come home from work, catch me fucking her sister and join in!!! miserable bitch!
My wifes so ugly, the only thing that goes down on her
Is the internet connection.
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J.M.
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PostPosted: 01:21 - 09 Mar 2012    Post subject: Reply with quote

Someone posted this earlier: https://www.youtube.com/watch?v=xr7x8aBhtJY

Interesting stuff Thumbs Up
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KingKong
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PostPosted: 01:27 - 09 Mar 2012    Post subject: Reply with quote

cloric_tzr wrote:
*to Embarassed


It's all good; but 'want to [what?] no more...
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Past - 2016 Ninja 300 (dark grey); K4 GSXR 600 (sexy yellow); 2002 CBR600FS; 2004 GSXR 1000; 2006 Kwak 636; 2005 Yamaha XVS 1100 Dragstar (facepalm); 2005 Kwak 636; 2011 Yamaha R125.
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lihp
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PostPosted: 01:36 - 09 Mar 2012    Post subject: Reply with quote

mredhead wrote:
youd have to be doing something major, or doing it at the wrong place for there to be some sort of lowside, if it was that dangerous EVERYONE would corner hanging off.
The main idea of hanging off is to shift weight to the inside of the bike to help 'pull' the bike round the corner. Your head weighs similar to that of a bowling ball so you can imagine the influence it can have... in certain circumstances.
The knee down bit is to try to keep the bike as upright as possible to be able to power out of the corner sooner, and to do it with controlable stability.
You shouldn't lowside on default if you don't hang off.

Mike


That is highly in-accurate.

Hanging off does NOT "pull the bike round the corner", at 70mph, your head dangling around has very little effect against gyro's and centrifugal force.

To understand hanging off, you must understand cornering basics.

You lean a bike into a turn in order to compensate the weight in the turn being pushed outwards (imagine being in a car, the weight goes right in a left turn). The same happens on a bike, to stop the bike falling over in the opposite direction to the turn, we lean the bikes into the turn.

The faster or tighter the turn, the higher the centrifugal force, so therefore the further we lean the bike.

Maximum corner speed, is determined by how far you can get the bike over, before the bike touches down, or you run out of tyre.

Moving all the weight to the inside of the bike/turn, by hanging off, helps to further counteract the centrifugal force, meaning that the bike is more upright for the same corner at the same speed.

Having the bike more upright is beneficial as you have a better contact patch with the tyres, the suspension works better vertically rather than horizontally.

Now, to take this further, now you have the bike more upright in the turn, you now have more tyre and more ground clearance available, so by getting the bike more upright, you can now corner faster or tighter, and use up your new found "safety margin"

However, you are very unlikely to run out of tyre or get a bike to touch down on a road, riding sensibly, so there is little need on a road to hang off a bike, unless you're doing some very spirited riding (aka having lots of fun), or you're on a track.
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KingKong
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PostPosted: 01:40 - 09 Mar 2012    Post subject: Reply with quote

J.M. wrote:
Someone posted this earlier: https://www.youtube.com/watch?v=xr7x8aBhtJY

Interesting stuff Thumbs Up


Thank you, sure is!
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KingKong
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PostPosted: 01:43 - 09 Mar 2012    Post subject: Reply with quote

PhilDawson8270 wrote:
That is highly in-accurate...


So, I would low-side if I didn't hang off?
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Past - 2016 Ninja 300 (dark grey); K4 GSXR 600 (sexy yellow); 2002 CBR600FS; 2004 GSXR 1000; 2006 Kwak 636; 2005 Yamaha XVS 1100 Dragstar (facepalm); 2005 Kwak 636; 2011 Yamaha R125.
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lihp
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PostPosted: 01:46 - 09 Mar 2012    Post subject: Reply with quote

KingKong wrote:
PhilDawson8270 wrote:
That is highly in-accurate...


So, I would low-side if I didn't hang off?


Only if you had the bike that far over that the bike touched the floor and lifted a wheel up, or that you ran out of tyre. Which happens first depends on the bike and the tyre.

Or if you chop the throttle at max lean, or pull the front brake hard, you would lose the front and lowside.
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KingKong
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PostPosted: 02:40 - 09 Mar 2012    Post subject: Reply with quote

Thanks, Phil... Smile Has helped a lot.

J.M. That youtube clip of Keith Code has really helped me understand the dynamics much better than previously; thank you! Thumbs Up

I suppose I may either hang off, or remain hunched over the tank; it wouldn't make much difference, unless I was racing on the track and wanted to save a bike length or so...according to Mr. Code. Meh, all's well.

I am glad I posted this thread up; have benefited from a lot of helpful guidance.

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st3v3
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PostPosted: 03:29 - 09 Mar 2012    Post subject: Reply with quote

Jesus christ.. One simple question!

No, is the answer. Various riders corner which ever way they are comfortable with.
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