SAE J1168 lean angles - Victory Forums - Victory Motorcycle Forum
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post #1 of 20 (permalink) Old 02-09-2011, 12:28 PM Thread Starter
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Default SAE J1168 lean angles

I'm interested in what the SAE J1168 rated lean angles are for these bikes. I used the search feature and resurrected another thread but the responses are coming back to show which parts scrape first.

HD's typically have ~30 degrees which sucks and I'd stop looking at these if they're within a few degrees.

Can anyone point me to this information?

Thanks
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post #2 of 20 (permalink) Old 02-09-2011, 02:27 PM
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Quote:
Originally Posted by Outlander View Post
I'm interested in what the SAE J1168 rated lean angles are for these bikes. I used the search feature and resurrected another thread but the responses are coming back to show which parts scrape first.

HD's typically have ~30 degrees which sucks and I'd stop looking at these if they're within a few degrees.

Can anyone point me to this information?

Thanks
So what model bike are you asking about?
I don't think the lean sensor came on bikes till 2010.
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post #3 of 20 (permalink) Old 02-09-2011, 02:51 PM
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Originally Posted by visionjohnny View Post
So what model bike are you asking about?
I don't think the lean sensor came on bikes till 2010.
I think he's asking for the SAE rating on the lean angle. In other words, an independent measurement of the maximum lean angle of the Cross bikes. I don't know the answer, so I'll sit down and zip it. Hopefully someone can provide that info to Outlander.

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post #4 of 20 (permalink) Old 02-09-2011, 04:04 PM Thread Starter
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Originally Posted by CrossRoads View Post
I think he's asking for the SAE rating on the lean angle. In other words, an independent measurement of the maximum lean angle of the Cross bikes. I don't know the answer, so I'll sit down and zip it. Hopefully someone can provide that info to Outlander.
Exactly what I'm hoping to receive, thanks!
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post #5 of 20 (permalink) Old 02-09-2011, 05:55 PM
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It is questionable as to whether or not the results from SAE J1168 are even applicable on vehicles with a tilt sensor installed to disable the ignition and/or cut off fuel. I am looking at SAE J1168 REAF. JAN2007 which references to SAE J213. Everything is related to bank angle which is pointless when/if the tilt sensor is configured to disable a bike at anything less than maximum bank angle.

Basically it doesn't matter how far you can lean your bike, it is only going to lean to a specific (untested by SAE J1168 or SAE J213) angle before the engine cuts off and you get to find out how well your highway bars are designed.

If you really want to know how far a bike could potentailly lean the optional method of testing per SAE J1168 would be simple to do at home:

6.1 In lieu of the measurement procedure specified in Section 4, the following optional measurement procedure
may be used.

6.2 The test motorcycle, prepared in accordance with Section 4, shall be placed on a rigid, tiltable surface as
illustrated in Figure 2. The tiltable surface shall be of sufficient rigidity and size to yield results equivalent to
those obtained in Section 5.

6.3 The tiltable surface shall then be inclined until contact between any component of the test motorcycle and the
tiltable surface can be visibly observed, as illustrated in Figure 3.

6.4 The test motorcycle shall be positively held in place such that the longitudinal plane of symmetry forms a right
angle (90 degrees) with the horizontal.

6.5 The bank angle shall then be determined by measuring the angle between the tiltable surface and the
horizontal.

6.6 Sections 6.3, 6.4, and 6.5 shall be repeated at least 3 times on both RH and LH sides of the motorcycle.

6.7 The bank angle shall be determined by averaging the three lowest values which are within 1 degree of each
other on that side of the test motorcycle that yields the lowest values.

Your "tiltable surface can be something as simple as a straight edge placed to the side of the tread surface of you tires. With the bike standing up on a flat surface place the straight edge as mentioned in the last sentence then raise it up at an angle until it contacts any part of your bike. As mentioned in paragraph the bank angle shall then be determined by measuring the angle between the tiltable surface and the horizontal.

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post #6 of 20 (permalink) Old 02-09-2011, 06:39 PM Thread Starter
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Quote:
Originally Posted by ammo_umb View Post
It is questionable as to whether or not the results from SAE J1168 are even applicable on vehicles with a tilt sensor installed to disable the ignition and/or cut off fuel. I am looking at SAE J1168 REAF. JAN2007 which references to SAE J213. Everything is related to bank angle which is pointless when/if the tilt sensor is configured to disable a bike at anything less than maximum bank angle.

Basically it doesn't matter how far you can lean your bike, it is only going to lean to a specific (untested by SAE J1168 or SAE J213) angle before the engine cuts off and you get to find out how well your highway bars are designed.

If you really want to know how far a bike could potentailly lean the optional method of testing per SAE J1168 would be simple to do at home:

6.1 In lieu of the measurement procedure specified in Section 4, the following optional measurement procedure
may be used.

6.2 The test motorcycle, prepared in accordance with Section 4, shall be placed on a rigid, tiltable surface as
illustrated in Figure 2. The tiltable surface shall be of sufficient rigidity and size to yield results equivalent to
those obtained in Section 5.

6.3 The tiltable surface shall then be inclined until contact between any component of the test motorcycle and the
tiltable surface can be visibly observed, as illustrated in Figure 3.

6.4 The test motorcycle shall be positively held in place such that the longitudinal plane of symmetry forms a right
angle (90 degrees) with the horizontal.

6.5 The bank angle shall then be determined by measuring the angle between the tiltable surface and the
horizontal.

6.6 Sections 6.3, 6.4, and 6.5 shall be repeated at least 3 times on both RH and LH sides of the motorcycle.

6.7 The bank angle shall be determined by averaging the three lowest values which are within 1 degree of each
other on that side of the test motorcycle that yields the lowest values.

Your "tiltable surface can be something as simple as a straight edge placed to the side of the tread surface of you tires. With the bike standing up on a flat surface place the straight edge as mentioned in the last sentence then raise it up at an angle until it contacts any part of your bike. As mentioned in paragraph the bank angle shall then be determined by measuring the angle between the tiltable surface and the horizontal.
I'm pretty sure the tilt sensor only comes into play after you've exceeded the lean angle (wiped out or dropped the bike).

Thanks for the info!
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post #7 of 20 (permalink) Old 02-09-2011, 07:42 PM
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That's not quite how it happened in my case. I had my bike running while I was on the ground trying to track a rattling noise and accidentally knocked it into gear. It moved far enough forward to push back the kickstand then fell over. It quit running before it hit the ground.

Like I said, tilt angle means very little when the tilt sensor cuts the engine before any part of the bike touches the ground.

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post #8 of 20 (permalink) Old 02-09-2011, 07:45 PM Thread Starter
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Are you sure it just didn't stall? I can't imagine a manufacturer designing a system that would cut the engine during at the limit cornering.
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post #9 of 20 (permalink) Old 02-09-2011, 08:03 PM
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Quote:
Originally Posted by Outlander View Post
Are you sure it just didn't stall? I can't imagine a manufacturer designing a system that would cut the engine during at the limit cornering.
Note that the bike is resting on the crash bar. That's how far it will lean before the bar touches down. Engine didn't shut off until almost at full lean. Incidentally, the only damage was abrasions on the bottom of the crash bar and the bottom outer edge of the hard case. I have since added protector bars for the cases. Damage not seen when bike is on its wheels. Mercedes driven by spoiled 18 year old from Half Moon Bay, CA and she was using a cell phone which is verboten here in the People's Republic of Oregon. I only had scrapes and bruises as I was wearing boots, helmet and a jacket with armor. Ya crash in what ya wear.
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post #10 of 20 (permalink) Old 02-09-2011, 09:47 PM
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I'm sure it didn't stall; it shut down like the key was turned off. It also wouldn't start for about 5 minutes after I stood it back up. Not a flooding issue like you would get from a stall; there was no power to the starter.
I'm sorry to say but I don't think you are going to find your answer in writing. You read what I had to say which was mostly directly from your reference. And I'm sure you'll read what RICZ had to say.

RICZ,
My drop was my fault; I learned to live with a little scuff on the bottom of the crash bars and bag protectors. Your drop sucks! I hope the young lady lost her license and her insurance bought you new leathers and crash bars. Young people today don't learn unless they lose things. The drivers license would be the best thing for her to lose; it would take an act of God to pry the cell phone out of a teenage girls hands.
My last troop almost lost his leg because of some ass clown teenage boy. The kid was texting while driving, ran a light and t-boned my troop on his sport bike. Poor guys leg was hanging on by the skin and muscles on his inner thigh. Now he's fighting to keep from getting medically retired because he can't do PT.

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