Tank slapper

Filthy Phil

.040 Over
Joined
Sep 30, 2015
Messages
71
Location
Newcastle Australia
Ride
Rocket X
I don't normally do this but I took both hands off the bars to adjust my helmet whilst doing 70kph & the handlebars started wobbling from side to side gradually getting more violent.
I tried it at a few different speeds & it only seems to do it below 75kph. It's fine at 100kph.

The bike is a 2015 Rocket X running a Bridgestone Exedra Max on the rear & Avon Cobra on the front.
I took it to the dealer & they checked tyre pressures, wheel balance, steering head bearings & couldn't find anything wrong.
They've booked it in again next week to have another look.

I did notice that the bike steers slightly to the left when I let go of the bars on a flat road surface.

Is there anything else I could get the dealer to check?
 
Do you have any crash bars installed? If they get them a little off - it will cause the bike to steer slightly left - from memory...
 
Reactions: Jag
I'm sure others will chime in but I'll be the first to say never go slower than 75kph and you're good. My opinion is sometimes it's just a bad tire as it looks like you checked everything else. I had a Harley that did that...I was good as long as I never let go of the handlebars. I never noticed a thing the rest of the time. I think a different front tire fixed the problem.

On another note...Interesting name. My roommates all had nicknames in college that didn't necessarily reflect our personality. I was Filthy Phil, and then there was Rotten Roger, Dirty Don, and Paul...well I can't say it here. Sorry....I digress from the topic.
 
I have had this happen several times on different bikes. A new front tire solved the problem everytime. I found metzlers especially bad. If the tire had lots of tread left I dealt with it till it was time to replace. If you can stop the shaking just by taking a firm grip of the bars dont give anymore money to the dealership[except if you are replacing the tire]
 
I used to know two girls who where called Rhonda and Glenda. They came to be known as Rhonda Rottenbox and Glenda Gluepot. I can't remember why.
 
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