So that’s what a tank slapper is…

(Originally posted on 2007-06-21 as /archives/22)

I experienced my first tank slapper on 2007-06-20.  That’s when a harmonic instability causes the handlebars to swap from side-to-side as far as they can go (AKA full lock).  I purchased a Suzuki SV650SA7 one month earlier (2007-05-19), and I already have over 1200 miles on it.   Anyway, I was coming out of the parking lot on the NE corner of Iowa and 23rd in Lawrence, KS after lunch.  These cars were coming at me pretty fast so I wanted to accelerate out-of-there.  I gunned it while I was leaned over.  First the rear wheel starts spinning, or I hit a false neutral, or who knows what (VROOOOOOM), and then the handlebars are doing a high speed dance (JIGGY-JIGGY-JIGGY), and left foot comes of the peg.  Afraid?  HAH!  Danger is my middle name!  Embarrassed?  You bet.

Here is a video of a tank slapper that looked like mine:

Here is a much-worse-ending one:

Republished by Blog Post Promoter