Tank Slapper

[Johnny OrganDonor]

   Very lucky!  (hope tis isn't a derby)

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[herm]

No derbys on the DMF, just Derby's

 

[koko64]

Rider needs to buy a Lotto ticket. What bike is that?

[ute]

Wow

Mr Brown pants for sure

[krolik]

Rider needs to buy a Lotto ticket. What bike is that?

Flat, now.

[Speeddog]

Yeah, a little second hand now. 

Allegedly Kawi Z1000, likely US version, I bet your Oz Z1000 is different.

[koko64]

I noticed the Motard bodywork, but heard an in line 4. Ours are more naked/streetfighter than motard.

How could one not be struck by the rider's amazement at still being alive.

[Stuka Pilot]

Hell. That is a sobering video.
 

[DuciD03]

Have personal experience with a low speed "hi sided" once when I was 15 yes old and in the process I at least bruised if not broke some ribs and had a very bruised foot;

that was scary to watch (W-AAAAAHT T F---------------K)- 

so, we; I see what a tank slapper - is - ; but HOW, or what causes this so I can avoid do-in what he just did...

[Wzed]

Forget the slapper...sliding under a moving trailer at highway speed and coming out the other side...wow...

That's the sort of thing you see in a movie and think, "they just lost my suspension of disbelief."  

so, we; I see what a tank slapper - is - ; but HOW, or what causes this so I can avoid do-in what he just did...

A slapper is caused by some input that creates an oscillation in the front end which grows catastrophically due to the forward velocity of the bike.  What causes it varies from rider error to riding over some piece of terrain that causes the front end to shake.  I've read a few different strategies to recover, but I think the best way is to avoid one by making sure your suspension is properly set up and by using a steering damper, which will help to prevent the "runaway" effect of such inputs by limiting the bike's response to them.  

[diamonddog-2]

I'm in disbelief.   I'm with koko64.   How can you not be struck by the riders amazement/joy at being alive!!!   F-me. 

I wonder how many people on this forum have experienced a tank slapper?    How many ride their street bikes with steering dampers?   I've been thinking about getting one but my suspension is getting a serious upgrade.  I'm not sure it's really needed?. 

[Howie]

Serious enough head shake to be almost a tank slapper.  A steering damper is a good idea as long it is not an attempt to mask a suspension problem. 

[S21FOLGORE]

as long it is not an attempt to mask a suspension problem.  

This.

Quite a bit of people try to solve the problem by add on parts. To some, steering damper is a sort of bling item.

I have never felt the need of steering damper on my S4R.

On my old turbo charged Kawasaki GPz, I thought about it but never installed. (Had some serious head shake in certain situation.)

A friend of mine totaled her first gen. SV650. (Had massive tank slapper. As a result, she crushed in spectacular fashion.)

[diamonddog-2]

I'm simply not familiar with this type of steering behavior and the different associated terms.   "hi-sided"?  "head shake"?   "tank slapper"?   

 howie: "Serious enough head shake to be almost a tank slapper"  Really?  It can get worse?   Poor suspension and higher speeds are frequently the cause?  Always?  50/50?   Does it happen quickly? Any signs to watch for?  Just slow the f down if I feel the steering oscillation to start?

Maybe I need to spend some time on youtube searching some visual differences. It's pretty sobering to see.  Better to have some kind of knowledge just in case?

[kopfjäger]

Here ya go.