February 28th, 2018, 03:50 PM | #1 |
Rev Limiter
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What the...
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February 28th, 2018, 04:54 PM | #2 |
ninjette.org sage
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Those people are going about it all wrong. Get up and walk it off you wuss!
Lol, j/k. I stared at the a while to try to figure out what kind of bike he has.
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February 28th, 2018, 04:58 PM | #3 |
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That's a big **** in his pants!
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February 28th, 2018, 06:11 PM | #4 |
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Terminal, unrecoverable speed-wobble is one of the dangers when you land a high-speed wheelie.
Isn't it obvious? This dude tried to hide the evidence by trimming the video down to just as the speed-wobble goes from bad to worse. His bike was a 2012 Kawasaki Z1000. |
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February 28th, 2018, 06:45 PM | #5 |
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People went through video frame by frame and found a coup!e good ones showing he was going 94mph!!!
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February 28th, 2018, 08:22 PM | #6 | ||
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Quote:
https://jalopnik.com/worlds-luckiest...r-a-1823397322 Quote:
Personally, I do find it cheap and unwise that manufacturers do leave out steering dampers on bikes with aggressive geometry and high power. I almost threw myself down the road while accelerating on a bumpy road on an R6 I used to have, prior to fitting a damper. Only blind luck and the road going in the direction my bike was aimed kept me on board. Once I fitted a damper, no stability issues on bumpy roads. More laidback geometry on street-focused bikes, and/or alternate front-end designs like BMW, also lower the need for such a gadget. I don't have one on any of my current bikes and don't feel like I'm missing anything.
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February 28th, 2018, 08:34 PM | #7 |
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Interesting post, Alex,
especially his claim that "... I changed into second gear (where the clip starts)." According to the video sleuths that @DannoXYZ mentioned, the speedo on his bike was indicating 94 MPH at the time of the incident. Judging from the rate of overtake he had on the white sedan and the semi truck at the start of the clip, I'm very willing to believe in that 94 MPH estimate. So he's telling us his Z1000 goes over 90 MPH in first gear? |
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March 1st, 2018, 05:57 AM | #8 |
ninjette.org sage
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If that was a z1000, first gear is about 65 mph. He might have just got out of 2nd gear at 90 or so. Rake is 24.5 deg on recent z1000 bikes, not something I would call overly agressive. But he doesn't necessarily have to be lying. Top of 2nd makes for a really light front on the Z and combined with the bumpy road a tank slapper could happen just as easily as a sloppy wheelie put down.
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March 1st, 2018, 08:20 AM | #9 |
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He also made it worse by fighting the wobble. The bike may well have sorted itself out if he hadn't fallen victim to Survival Reaction #2.
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March 1st, 2018, 09:03 AM | #10 |
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I can't believe everyone is falling for his story. This guy does this kind of tricks all the time. Each time taking it a step further. This was all staged as the ultimate stunt. He made up the story so as to not get arrested. The **** in his pants had been there for days.
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March 1st, 2018, 06:02 PM | #11 |
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So how would a person recover a speed-wobble like that?
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March 1st, 2018, 06:11 PM | #12 |
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I usually just let go of the bars and it straightens itself out.
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March 1st, 2018, 11:41 PM | #13 |
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I vote squid
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March 2nd, 2018, 10:35 AM | #14 | |
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No surefire single method that will work every time, but the basic problem is that the current oscillation is getting stronger and stronger at the existing speed and weight on front end. So the idea is that you need to change those conditions in some way to get the wobble to be less severe each oscillation instead of more.
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The problem is that sometimes just slowly letting off the gas and letting the bike slow down makes the wobble worse. If it's already flipping close to lock to lock, putting more weight on the front end by slowing makes it worse rather than better. If the bike has decent power, rolling on the throttle instead may do a better job than anything else, but it's counter-intuitive.
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March 2nd, 2018, 10:37 AM | #15 | |
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Quote:
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March 2nd, 2018, 12:16 PM | #16 |
Rev Limiter
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Open 'er up!
Many times that type of thing get worse when decelerating or braking. In Land Speed Racing, there have been plenty of cases where that happens just after the traps as the bike is slowing. I saw a Harley on the Interstate one day that was oscillating the entire time. It was worse when he rolled off the gas, and went away when he was accelerating. It was in between while cruising. Didn't phase him. |
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March 2nd, 2018, 12:37 PM | #17 | |
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Quote:
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March 2nd, 2018, 12:45 PM | #18 | |
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Quote:
Often things can't be left to the human reactions produced by felt sensations "in the moment" because by the time your mind processes the information and commands a muscular reaction/response at the controls it will be too late and out-of-phase and only make things worse instead of better. Any time one or more of the stability augmentation systems goes down there will be limitations on how you fly the aircraft (how high, how fast, configurations, etc.) |
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March 3rd, 2018, 01:58 AM | #19 | |
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Quote:
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March 3rd, 2018, 07:00 PM | #20 |
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Thanks- this is a good discussion.
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March 4th, 2018, 05:28 AM | #21 |
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Dear squirrely in Daytona, by chance, as you cranked the throttle did it cause you to apply more weight on the foot pegs (lowering the center of gravity)?
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March 6th, 2018, 04:31 PM | #22 |
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Actually it was a squirrel in MD, but I dont think so, I had just enough time to squeeze the tank with my knees before I hit it so that may have helped as well.
PS for any one in Cali the little rock squirrel things that are sort of chubby and run super slow are a pain in the rear to avoid. PPS if you hit a bird with a DRZ400S you wont know it until you see the feathers and chunks of meat stuck in the radiator/wheel/fairings
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March 6th, 2018, 04:54 PM | #23 |
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