I've got a 2001 ZX6R and I've noticed that when I hit a significant bump (e.g. (for anyone in the UK) on the crappy M42!!) at high speed (100mph or more) the bike continuous to occilate with the energy of the bump for a considerable distance making the bike feel just a tad unstable [:0]. It settles down quicker under 100 mph and it's not noticeable at 80 mph. I have a pending speeding issue so I'm not going so fast now but was wondering if this is a sign of bad things? It's been in and out of the garage for check ups etc but they can't find anything wrong.