Serious Lean Angle - Page 2

Dmented · September 15th, 2012, 08:10 AM

Quote:

Originally Posted by csmith12

Anyway... Don't be shy, got some some lean going on Unregistered? Let's see it.

been busy,
here's some 250 and 1000:

looks like i try to scrape peg/toe whenever possible... it's my feeler gauge.

csmith12 · September 15th, 2012, 08:17 AM

@Dmented is that your lower about to drag in the 2nd shot?

Great pics everyone! Keep em coming. These are some of the best lean angle shots available for 250's that I have seen. I need to dig through my photos and post mine.

Dmented · September 15th, 2012, 08:36 AM

Quote:

Originally Posted by csmith12

@Dmented is that your lower about to drag in the 2nd shot?

YUP... we scrape lowers and ride on the sidewalls roun hurrr!
Hmmm...
can we add tire pictures to these serious lean angle pix? i'm also curious as to tire wear at maximum lean angle

Hmmmm.... sidewall grip?

csmith12 · September 15th, 2012, 08:41 AM

Those pix are great. Feel free to add whatever, I am not big on thread rulez.

Motofool · September 15th, 2012, 09:17 AM

Quote:

Originally Posted by csmith12

.........I have given the tire idea more thought too... If skinnier tires equals less available lean angle then supermoto's wouldn't be doing the crazy stuff they do. So I think that is busted.

EDIT: Remember I am not quite a n00b here.

Copied from http://en.wikipedia.org/wiki/Bicycle...cycle_dynamics

"The finite width of the tires alters the actual lean angle of the rear frame from the ideal lean angle described above. The actual lean angle between the frame and the vertical must increase with tire width and decrease with center of mass height. Bikes with fat tires and low center of mass must lean more than bikes with skinnier tires or higher centers of mass to negotiate the same turn at the same speed."

choneofakind · September 15th, 2012, 09:19 AM

So raising the tail an inch actually would help reduce lean angle needed, along with adding more ground clearance.

alex.s · September 15th, 2012, 10:23 AM

The more noticeable change is in the rake and trail... Steeper rake and shorter trail both mean less stability which means quicker turn ins

Alex · September 15th, 2012, 01:47 PM

Quote:

Originally Posted by KazMan

I posted some of my pictures already? Are you asking to see more?

Great pics! (Chris is using the sneaky [ you ] function, so it looks like he's talking directly to everyone

)

htdub · September 15th, 2012, 02:27 PM

csmith12 · September 15th, 2012, 04:22 PM

Very nice Hien! And still a bit of lean left in the tank.

Tiane · September 15th, 2012, 08:00 PM

^^^Nice pictures!!!

Pushing the limits of the stock IRC tires:

some videos:
http://www.ninjette.org/forums/showthread.php?t=103413

Me :P

racegunnr · September 15th, 2012, 08:07 PM

Quote:

Originally Posted by csmith12

Anyway... Don't be shy, got some some lean going on Unregistered? Let's see it.

HAHA!!! none on me....they didnt have camera's then.....it was wall carvings. I do miss the track but I'm too busy being a "pit Dad"!!!!!

here is some lean of the boy tho....wrecked a new pair of A-stars SMx-5 boots cause he wore the toe slider down and into the boot in one session! DAMMIT!!!! running steel sliders now, he really likes the feedback from the steel(magnesium) now.

racegunnr · September 15th, 2012, 08:14 PM

I did replace the woodcraft rearsets with Vortex, gained about a half inch up and back a little.....after the nasty peg drag he had....kinda ruined the rest of the day

and cut off about an inch off the Vtx pegs to try to help, he rides with his tip-toe on the peg but still drags his toe. On the SV650 he is dragging the belly pan, and toes too, he likes the lean....

csmith12 · September 15th, 2012, 08:21 PM

Cool pics everyone! Notes taken too

htdub · September 15th, 2012, 11:00 PM

Quote:

Originally Posted by csmith12

Very nice Hien! And still a bit of lean left in the tank.

It's a very fast corner, and it opens up to riders right, so not so much lean angle is needed.

Next time at the track, i'll see if i can drag my pegs thru the corner.

Rexbo · September 16th, 2012, 09:04 PM

@htdub oh man you've got lotsa lean left on the bike. I want elbow down proof on a 250 though!!

Buford · September 16th, 2012, 09:39 PM

Andrew Rogers on a 250 at wmrra in july this year. I was too far behind to get a better shot.
vlcsnap-2012-09-16-21h22m39s28.2.png

sharky nrk · September 17th, 2012, 04:37 AM

Some very impressive stuff in here!!!

csmith12 · September 17th, 2012, 04:46 AM

Quote:

Originally Posted by sharky nrk

Some very impressive stuff in here!!!

I know right!!! Some really cool 250 setups and really great riders too.

alex.s · September 17th, 2012, 05:21 PM

SERIOUS lean angle:

AlanDog · September 17th, 2012, 05:27 PM

So do you want more lean to go faster, or you just like the idea?

A related question: in some of these photos riders are really hanging off the bike, in others they are almost aligned to the centerline of the bike--can you make a general assumption that the people who are hanging off more are moving faster? (because won't being upright with your bike almost dragging parts just throw you off going faster?) Or is it just riding style?

alex.s · September 17th, 2012, 06:20 PM

Quote:

Originally Posted by AlanDog

So do you want more lean to go faster, or you just like the idea?

A related question: in some of these photos riders are really hanging off the bike, in others they are almost aligned to the centerline of the bike--can you make a general assumption that the people who are hanging off more are moving faster? (because won't being upright with your bike almost dragging parts just throw you off going faster?) Or is it just riding style?

if you had a large enough area, you can remain at "full lean" accelerating from 10mph to 100mph without ever changing your lean angle. however at full lean, the difference in speed and body position effects the radius of the turn. (including lots of other things like wheel base and tire profiles)

Motofool · September 17th, 2012, 07:16 PM

Quote:

Originally Posted by alex.s

if you had a large enough area, you can remain at "full lean" accelerating from 10mph to 100mph without ever changing your lean angle. however at full lean, the difference in speed and body position effects the radius of the turn. (including lots of other things like wheel base and tire profiles)

Exactly !

Being directly linked to the centripetal acceleration, the angle of lean (of bike + rider combined CG respect to the contact patches) is proportional to the speed of the bike (square) and to the radius of the turn.

The centripetal acceleration is:

a = v^2 / r

where v is the constant speed and r the radius of the path.

As Alex explained, each picture can show any combination of speed and radius.

The hanging off style does not change that total angle of lean, but keeps the bike more vertically, helping the suspension work better and avoiding metal contact with pavement for extreme angles (extreme centripetal accelerations).

Nemesis · September 17th, 2012, 10:22 PM

csmith12 · September 18th, 2012, 05:45 AM

Quote:

Originally Posted by AlanDog

So do you want more lean to go faster, or you just like the idea?

Yes, do want to go faster.

Quote:

Originally Posted by AlanDog

A related question: in some of these photos riders are really hanging off the bike, in others they are almost aligned to the centerline of the bike--can you make a general assumption that the people who are hanging off more are moving faster? (because won't being upright with your bike almost dragging parts just throw you off going faster?) Or is it just riding style?

No, that is not a safe assumption. I have passed and have been passed while not not having good form. It also has been posted on this site, a 3mph knee drag with extreme hang off.

Sometimes, when the track has the traction, tires have the grip and the bike has the lean, the rider can be awarded a lot of freedoms of body position and style. On any given day, style can vary wildly between any 2 riders, one of the fastest guys I know rides as we call it "all crossed up" but somehow makes it work. Under "my" ideal conditions, have learned I can lean a bike so far over, the what we read as "textbook" body position has to be somewhat altered. When your butt is off the seat, chin down next to hand on the grip, both knees are against the tank (hips not open to the corner), my elbow became the limit to my lean angle but it was the only way I could get the pace I wanted through the corners. The first time it happened, I instantly pulled my elbow in closer, getting it off the tarmac. I am sure if anyone caught it on camera or video, my body position would have looked a bit more like a spider on the side of the bike rather than a rider on the front of a magazine. And check Nemesis's pic, his outside knee is definitely not locked under the tank lip but it works for him.

@alex.s

Winner???!!!! hahahahahah

@Nemesis - Awesome pic yo, did you have to cut the fairing to get your clipons under the top triple?

psych0hans · September 18th, 2012, 05:57 AM

Just out of curiosity, would having wider rims like the vrossi ones from Indonesia with 120/70 front and 150/60 rear tyres help any for leaning more?

csmith12 · September 18th, 2012, 06:10 AM

Quote:

Originally Posted by psych0hans

Just out of curiosity, would having wider rims like the vrossi ones from Indonesia with 120/70 front and 150/60 rear tyres help any for leaning more?

Good question and one of the purposes of this thread. My theory is yes. The lil ninja may disagree with me though.

Nemesis · September 18th, 2012, 07:04 AM

Quote:

Originally Posted by csmith12

@Nemesis - Awesome pic yo, did you have to cut the fairing to get your clipons under the top triple?

That ain't me. That's Jason (a.k.a Mad Hammer) from MRA. He raced with us last year in October I believe and the guy's quick! He'll be with us this October or November...can't wait. Hope he pulls one of those but hope he does it behind me in the race.

psych0hans · September 18th, 2012, 09:06 AM

Quote:

Originally Posted by csmith12

Good question and one of the purposes of this thread. My theory is yes. The lil ninja may disagree with me though.

We need a guinea pig to test it for us

KazMan · September 18th, 2012, 09:10 AM

Although larger tires could help in the lean angle, having raced 125gp bikes, I would say it's not as much a factor as speed as applied through an arc.

Here are pictures of 125gp riders who have lean angles while on 120 tyres. Tyre sizes currently being used by Ninjette riders in the form of slicks.

Jiggyfly · September 18th, 2012, 10:35 AM

Quote:

Originally Posted by csmith12

Anyway... Don't be shy, got some some lean going on Unregistered? Let's see it.

__________________________________________________
Jiggles: "I was with Jiggyfly last night. things got a little bit carried away. We had sex."

__________________________________________________
"Jiggyfly, I know you wanna go to the track. Don't deny!
Quit working so hard to fit in, work hard to stand out!!!"

Why am I so popular here???? Hunh, I didn't even realize!

this is before the apex @ Talledega. 1/2 a second later my toes on the ground, & that's about all she's got. Rearsets, Ohlins that's got a good amount of ride height in it......

alex.s · September 18th, 2012, 10:55 AM

Quote:

Originally Posted by Jiggyfly

__________________________________________________
Jiggles: "I was with Jiggyfly last night. things got a little bit carried away. We had sex."

__________________________________________________
"Jiggyfly, I know you wanna go to the track. Don't deny!
Quit working so hard to fit in, work hard to stand out!!!"

Why am I so popular here???? Hunh, I didn't even realize!

this is before the apex @ Talledega. 1/2 a second later my toes on the ground, & that's about all she's got. Rearsets, Ohlins that's got a good amount of ride height in it......

type [ you ] without the spaces.

Dmented · September 18th, 2012, 10:58 AM

Quote:

Originally Posted by alex.s

type [ you ] without the spaces.

It's SUPER annoying so far...

Jiggyfly · September 18th, 2012, 11:05 AM

Hunh?!

I'm lost. Not sure why no pic, either......

alex.s · September 18th, 2012, 11:12 AM

Quote:

Originally Posted by Dmented

It's SUPER annoying so far...

you're just doing it wrong.

go to my profile and look how many people i've tricked so far luls

KazMan · September 18th, 2012, 11:31 AM

and just like that, the Serious Lean Angle thread highsides itself to the moon because of Unregistered!

Jiggyfly · September 18th, 2012, 11:56 AM

Ok......yeah, super annoying.

rojoracing53 · September 18th, 2012, 12:11 PM

That's what left of the titanium slider imbedded in to the cylinder head of my BMW r1100s. Dragging the motor in every turn

rojoracing53 · September 18th, 2012, 12:15 PM

Here's a picture of me and the guys at mid Ohio

Nemesis · September 18th, 2012, 10:41 PM

Quote:

Originally Posted by KazMan

and just like that, the Serious Lean Angle thread highsides itself to the moon because of Unregistered!

LOL Damn Unregistered

Srsly, it is annoying.

September 15th, 2012, 08:17 AM	#42
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	@Dmented is that your lower about to drag in the 2nd shot? Great pics everyone! Keep em coming. These are some of the best lean angle shots available for 250's that I have seen. I need to dig through my photos and post mine. __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

September 15th, 2012, 08:41 AM	#44
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	Those pix are great. Feel free to add whatever, I am not big on thread rulez. __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

September 15th, 2012, 10:23 AM	#47
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	The more noticeable change is in the rake and trail... Steeper rake and shorter trail both mean less stability which means quicker turn ins __________________________________________________

September 15th, 2012, 04:22 PM	#50
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	Very nice Hien! And still a bit of lean left in the tank. __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

September 15th, 2012, 08:21 PM	#54
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	Cool pics everyone! Notes taken too __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

September 15th, 2012, 09:19 AM	#46
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	So raising the tail an inch actually would help reduce lean angle needed, along with adding more ground clearance.

September 15th, 2012, 02:27 PM	#49
htdub ninjette.org member Name: Hien Location: Vancouver,BC Join Date: Feb 2012 Motorcycle(s): triumph Posts: 116

September 15th, 2012, 08:00 PM	#51
Tiane ninjette.org member Name: Tiane Location: Virginia Beach Join Date: Sep 2011 Motorcycle(s): NINJA300 Posts: 46	^^^Nice pictures!!! Pushing the limits of the stock IRC tires: some videos: http://www.ninjette.org/forums/showthread.php?t=103413 Me :P

September 16th, 2012, 09:04 PM	#56
Rexbo CVMA / AFM / M1GP #250 Name: Steve Location: Los Angeles Join Date: Sep 2009 Motorcycle(s): 2009 Ninja 250r, 2011 Zero S, 2009 KLR 650 Posts: A lot.	@htdub oh man you've got lotsa lean left on the bike. I want elbow down proof on a 250 though!!

September 16th, 2012, 09:39 PM	#57
Buford ninjette.org member Name: Michael Location: ca Join Date: Oct 2011 Motorcycle(s): Ninja Posts: 10	elbowz Andrew Rogers on a 250 at wmrra in july this year. I was too far behind to get a better shot. vlcsnap-2012-09-16-21h22m39s28.2.png

September 17th, 2012, 04:37 AM	#58
sharky nrk Fighting Texas Aggie '05 Name: Neil Location: Hutto, TX Join Date: Feb 2009 Motorcycle(s): '07 ZX6R, '08 Versys, '09 250R Track, '93 F2/F3 Track Posts: A lot.	Some very impressive stuff in here!!!

September 17th, 2012, 05:21 PM	#60
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	SERIOUS lean angle: __________________________________________________

September 17th, 2012, 05:27 PM	#61
AlanDog ninjette.org guru Name: Alan Location: Woodland, California (Sacramento area) Join Date: Jul 2011 Motorcycle(s): 2019 Ninja 400, 2009 KLX250-SF, 2014 Zero S Posts: 269	So do you want more lean to go faster, or you just like the idea? A related question: in some of these photos riders are really hanging off the bike, in others they are almost aligned to the centerline of the bike--can you make a general assumption that the people who are hanging off more are moving faster? (because won't being upright with your bike almost dragging parts just throw you off going faster?) Or is it just riding style?

September 17th, 2012, 10:22 PM	#64
Nemesis CVMA #74 WSMC #750 Name: Nemesis Location: On the track Join Date: Oct 2009 Motorcycle(s): All of them Posts: A lot.	__________________________________________________

September 18th, 2012, 05:57 AM	#66
psych0hans ninjette.org certified postwhore Name: Hansveer Location: Bombay, India Join Date: Jan 2012 Motorcycle(s): Ninja 250r - Track whore, Ninja 300 - SOLD, KTM RC390 - Orange Hulk, Ducati 899 Panigale - Red Devil. Posts: A lot.	Just out of curiosity, would having wider rims like the vrossi ones from Indonesia with 120/70 front and 150/60 rear tyres help any for leaning more? __________________________________________________ GETTING BACK INTO RIDING? Read this.

September 18th, 2012, 11:05 AM	#74
Jiggyfly ninjette.org member Name: Shon Location: Columbia, sc Join Date: Oct 2011 Motorcycle(s): 2008 Kawasaki ninja 250 Posts: 132	Hunh?! I'm lost. Not sure why no pic, either......

September 18th, 2012, 11:31 AM	#76
KazMan ninjette.org member Name: Eric Location: SF Bay Area Join Date: May 2011 Motorcycle(s): none yet Posts: 228	and just like that, the Serious Lean Angle thread highsides itself to the moon because of Unregistered!

September 18th, 2012, 11:56 AM	#77
Jiggyfly ninjette.org member Name: Shon Location: Columbia, sc Join Date: Oct 2011 Motorcycle(s): 2008 Kawasaki ninja 250 Posts: 132	Ok......yeah, super annoying.

September 18th, 2012, 12:11 PM	#78
rojoracing53 Fast-Guy wannabe Name: Jason Location: Brentwood, Ca Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot. MOTM - Jan '13	That's what left of the titanium slider imbedded in to the cylinder head of my BMW r1100s. Dragging the motor in every turn

September 18th, 2012, 12:15 PM	#79
rojoracing53 Fast-Guy wannabe Name: Jason Location: Brentwood, Ca Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot. MOTM - Jan '13	Here's a picture of me and the guys at mid Ohio

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