64 degrees

Discuss riding techniques, styles and tips here.
Post Reply
User avatar
zx899r
KSRC Member
KSRC Member
Posts: 418
Joined: Fri Oct 05, 2007 3:55 am
Bike: ZX9R
State: South Australia
Location: barossa valley

64 degrees

Post by zx899r »

I know it's a Yamaha. ...but in prospective. :o
uploadfromtaptalk1380228622751.jpg
uploadfromtaptalk1380228622751.jpg (55.94 KiB) Viewed 16830 times
GO GREEN!
User avatar
Wattie
VIP MEMBER
VIP MEMBER
Posts: 10041
Joined: Mon Oct 31, 2005 12:23 pm
Bike: ZX10R
State: New South Wales
Location: Bligh Park

Re: 64 degrees

Post by Wattie »

Not bad eh?

I've seen people who have scraped their pegs on the road lay their bike until the peg touches the ground to see how far they lean.
The problem is that the suspension isn't compressed while stationary, which gives a false representation of the lean angle.

But if you actually work out the lean angle in degrees and apply it, then you get what Yamaha have done.
Fffffaaaaark!
Wattie #55
ZX10R "The Crim"
ZX10R "Gumby"
Proudly Supported by Allfixed Automotive 9634 1455
sam & srt, survived
RGM, left a message
User avatar
fireyrob
KSRC Addict
KSRC Addict
Posts: 4828
Joined: Wed Mar 12, 2008 10:13 am
Bike: Z1000
State: New South Wales
Location: Ashfield

Re: 64 degrees

Post by fireyrob »

Awesome :kuda:
09 ZX6R
03 Zthou
User avatar
BrettZZR
VIP MEMBER
VIP MEMBER
Posts: 619
Joined: Fri Apr 13, 2012 4:44 pm
Bike: ZZR1100
State: Western Australia
Location: Perth

Re: 64 degrees

Post by BrettZZR »

Yep - there is a fair bit of suspension compression during lean - calculated purely mathematically
ANGLE - FACTOR (Factor is the what to times the weight of bike and rider by to compress the suspension the same amount)
45 - - - - - 1.41
50 - - - - - 1.55
55 - - - - - 1.74
60 - - - - - 2.00
65 - - - - - 2.37

So at a 60 deg lean your suspension is a compressed as if you had another BIKE AND RIDER strapped to your back at standstill.

This is why hanging off the bike works - by moving the centre of gravity away from the centreline of suspension force you reduce the compressive forces on the suspension and replace it with a sideways component on the tire contact patch (a bit more like a car tire turning).

So the pic is cool from a visual perspective only.

Sorry - beware a bored engineer...

(-8
User avatar
robracer
VIP MEMBER
VIP MEMBER
Posts: 15251
Joined: Thu Feb 24, 2005 8:23 pm
Bike: ZX6R
State: New South Wales
Location: Port Macquarie

Re: 64 degrees

Post by robracer »

Awesome way of putting it Brett
User avatar
Sparks_333
KSRC Member
KSRC Member
Posts: 271
Joined: Mon Jul 16, 2012 2:45 pm
Bike: ZX6R
State: New South Wales
Location: Sydney, Inner West

Re: 64 degrees

Post by Sparks_333 »

fuuuaaarrrrkkkkk :shock:

I still don't like him though... haha
2009 Kawasaki Ninja 650R Green
2010 Kawasaki Ninja 250R Black/Green (Track Bike)
1998 Kawasaki Ninja ZX6R Green - "Fluffy" (Track Bike)

"Never ride faster than your guardian angel can fly."
Disco
Team Monster
Posts: 3430
Joined: Fri May 02, 2008 5:52 pm
Bike: ZX6R
State: Please Select a State

Re: 64 degrees

Post by Disco »

Sparks_333 wrote:fuuuaaarrrrkkkkk :shock:

I still don't like him though... haha
I'll let him know when I talk to him next month ;) :lol:
Stopping=Crashing!
User avatar
Kermit
KSRC Contributor
KSRC Contributor
Posts: 1651
Joined: Sat Apr 17, 2010 6:35 pm
Bike: ZX6R
State: New South Wales
Location: Sydney

Re: 64 degrees

Post by Kermit »

Disco wrote:
Sparks_333 wrote:fuuuaaarrrrkkkkk :shock:

I still don't like him though... haha
I'll let him know when I talk to him next month ;) :lol:
pfft, yorghey.
User avatar
ZX9R Man
KSRC Member
KSRC Member
Posts: 212
Joined: Sat Feb 21, 2015 6:24 am
Bike: ZX9R
State: New South Wales

Re: 64 degrees

Post by ZX9R Man »

I couldn't be bothered.. ;)
Post Reply