Deathwobble
1st Gear
Joined: Jul 2012
Posts: 5
Likes: 0
From: new haven, CT
i truly believe thats the last thing happening its what the swingarm mounts to , or lack there of
Seasoned HDF Member
Joined: Jan 2012
Posts: 15,395
Likes: 19,403
From: Upstate N.Y.-Rochester Area
When I first got my 1989 FLHS I experienced what I called Fish Flopping on a wide sweeping right turn leading onto a highway. Since this was a two lane entrance ramp, and cars were all around me it was "Interesting" to experience.
It scared the crap out of me.
My bike now has the Full "Trackula" True-Track package on it. I've pushed the bike harder since this mod, and it's rock solid.
Don't care to experience that unsteadiness again, and with my bikes improved handling I'm a believer in the Stabilizer set.
It scared the crap out of me.
My bike now has the Full "Trackula" True-Track package on it. I've pushed the bike harder since this mod, and it's rock solid.
Don't care to experience that unsteadiness again, and with my bikes improved handling I'm a believer in the Stabilizer set.
Road Master
Joined: Jun 2009
Posts: 1,062
Likes: 18
From: Beautiful SW Missouri Ozark Mountain Country
Whoa, no no no no no. It is a HUGE issue on Dyna's as well. So much so that the Dyna forum sponsor IS True Track. I had it big time on my Low Rider and many Dyna owners complain insensately about it. For me, new tires, motor mounts and a True stabilizer was what what it took to square the bike away.
http://www.true-track.com/
http://www.youtube.com/watch?v=yvDI2dmzDEA
.
http://www.true-track.com/
http://www.youtube.com/watch?v=yvDI2dmzDEA
.
And speaking of softails, someone got a new ride.
Seasoned HDF Member
Joined: Jun 2010
Posts: 9,332
Likes: 3,873
From: Upstate New York
It looks to me like it's caused by the fact that the swingarm is rigidly mounted to the engine/transmission, and that whole assembly is allowed to float on a system of Heim joints and rubber mounts relative to the chassis.
Tourer
Joined: Apr 2012
Posts: 345
Likes: 3
From: Manhattan
Happened to me first time last weekend. Did feel very odd and a bit unnerving. Will try to recreate in a bit more of an open space. If happens again, it will be enough for me to seek a correction.
Rear tire pressure was at 40, checked when I got home. Front was high but don't think that contributed to it.
Rear tire pressure was at 40, checked when I got home. Front was high but don't think that contributed to it.
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Road Captain
Joined: Apr 2012
Posts: 628
Likes: 14
From: Sweden via Bisbee, Az.
Now I'm all paranoid. NOticed something yesterday doing a right hand sweeper on throttle to get on the highway. I thought that it was the lane bump, but I didn't see any! crap. I have noticed this feeling before, i'm just hoping it was some line/bumps tracking sort of thing and not the wobble from hell.
Road Warrior
Joined: Apr 2007
Posts: 1,952
Likes: 15
From: Senoia, Ga., by way of Miami, Fl..
I agree. It looks like the engine and swing arm do their own thing in relation to the chassis and forks.. All it takes is a little torsion on the motor mounts to change the rear tire direction when in a turn and it becomes full on excitement.. The only factory link/heim joint is in the middle of the powertrain and acts as a pivot point between the front and rear mounts. So, any little twist will drastically change the track of the bike.. Apparently, the TT kit stops the rear movement and fixes the problem. Seems pretty clear to me, and looks like a great investment if you push your bike through the corners enough to notice the problem..