View Poll Results: Dyna Riders, have you ever experienced Dyna Death Wobble?
NO
113
74.34%
YES
39
25.66%
Voters: 152. You may not vote on this poll
Dyna Death Wobble Poll YES OR NO
Thread Starter
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Road Warrior
Joined: Mar 2017
Posts: 1,722
Likes: 774
From: Under Alot of Trees
Based on the spectrum of symptoms/ fixes/contributing factors....I Am getting the idea that overall drive train stability and alignment is the key to not having instability....not so much that Dynas are inherently prone to wobble.
Road Captain
Joined: Apr 2019
Posts: 660
Likes: 352
From: Colorado
I think you are spot one....keep the bike maintained, recognize things need adjusting and rubber mounts wear out...
Club Member
Joined: Jul 2014
Posts: 11,470
Likes: 3,572
From: Idaho
OH YEAH.
The first time I almost **** my pants. But...I didn't die.
The second time I just waited it out.
To be clear, this was on a brand new FXDC Super Glide, so you can't blame old worn-out engine mounts. It's part of the deal. The engine moves one way, the transmission moves another way, and the rear swingarm moves another way. And there you have it.
The first time I almost **** my pants. But...I didn't die.
The second time I just waited it out.
To be clear, this was on a brand new FXDC Super Glide, so you can't blame old worn-out engine mounts. It's part of the deal. The engine moves one way, the transmission moves another way, and the rear swingarm moves another way. And there you have it.
Seasoned HDF Member
Joined: May 2017
Posts: 5,915
Likes: 5,929
From: NorCal
OH YEAH.
The first time I almost **** my pants. But...I didn't die.
The second time I just waited it out.
To be clear, this was on a brand new FXDC Super Glide, so you can't blame old worn-out engine mounts. It's part of the deal. The engine moves one way, the transmission moves another way, and the rear swingarm moves another way. And there you have it.
The first time I almost **** my pants. But...I didn't die.
The second time I just waited it out.
To be clear, this was on a brand new FXDC Super Glide, so you can't blame old worn-out engine mounts. It's part of the deal. The engine moves one way, the transmission moves another way, and the rear swingarm moves another way. And there you have it.
Club Member
Joined: Jul 2014
Posts: 11,470
Likes: 3,572
From: Idaho
I talked to the service manager. "I don't know what you're talking about."
Otoh, this was the same guy, when I told him that the bike was wobbling all over the place when I was slowing down for a stop sign: "It's your tires."
When I took it to another dealership, the service guy called me into the shop and said: "You need to look at this.", and then dumped my rear wheel bearing, in a dozen pieces, into my hand.
Otoh, this was the same guy, when I told him that the bike was wobbling all over the place when I was slowing down for a stop sign: "It's your tires."
When I took it to another dealership, the service guy called me into the shop and said: "You need to look at this.", and then dumped my rear wheel bearing, in a dozen pieces, into my hand.
Seasoned HDF Member
Joined: May 2017
Posts: 5,915
Likes: 5,929
From: NorCal
I talked to the service manager. "I don't know what you're talking about."
Otoh, this was the same guy, when I told him that the bike was wobbling all over the place when I was slowing down for a stop sign: "It's your tires."
When I took it to another dealership, the service guy called me into the shop and said: "You need to look at this.", and then dumped my rear wheel bearing, in a dozen pieces, into my hand.
Otoh, this was the same guy, when I told him that the bike was wobbling all over the place when I was slowing down for a stop sign: "It's your tires."
When I took it to another dealership, the service guy called me into the shop and said: "You need to look at this.", and then dumped my rear wheel bearing, in a dozen pieces, into my hand.
Club Member
Joined: Jul 2014
Posts: 11,470
Likes: 3,572
From: Idaho
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Road Captain
Joined: Nov 2017
Posts: 711
Likes: 143
From: .
http://sputhe.com/dyna-stabilizers/o...a-instability/
Just learn a little bit of geometry folks. Not that hard to find where the problem lays. All bikes has wheels, bearings and some motor mounts. Of course servicing these parts are essential to maintain proper stability for all bikes. These are wear parts, we all know that.
The thing with dynas(since we are in the dyna thread), Harley added another variable to cause the wobble. Not on purpose(hope not) but by not thinking further with the geometry when rubber mounted the engine. They didnt think about the lateral movement of the engine. Rubber flex and dyna dont have anything that isolate the unwanted lateral movement causing this sexy fishtail dance.
Some people may notice improvement by just swapping out the motor mounts with new ones. The rubbers are stiffer when new, and they will just camouflage the problem a short while.
This IS a known factor. Some people will never experience to dance with their Dynas like most people commenting on this thread, it depends on how you ride and where you ride, but the problem is still there. Even tho you never experienced it(lucky you), doesnt mean the problem is non existent. Dont be like Karen(camouflaged by the name Dick above here) and talking ignorantly like she know the boss of this issue. Dynas rubber mounted engine is a well known cause for the wobbling. Facts.
You shouldnt trust me, like everything else on the www and forums, just read a little bit about this subject and then learn. #Geometry
Just learn a little bit of geometry folks. Not that hard to find where the problem lays. All bikes has wheels, bearings and some motor mounts. Of course servicing these parts are essential to maintain proper stability for all bikes. These are wear parts, we all know that.
The thing with dynas(since we are in the dyna thread), Harley added another variable to cause the wobble. Not on purpose(hope not) but by not thinking further with the geometry when rubber mounted the engine. They didnt think about the lateral movement of the engine. Rubber flex and dyna dont have anything that isolate the unwanted lateral movement causing this sexy fishtail dance.
Some people may notice improvement by just swapping out the motor mounts with new ones. The rubbers are stiffer when new, and they will just camouflage the problem a short while.
This IS a known factor. Some people will never experience to dance with their Dynas like most people commenting on this thread, it depends on how you ride and where you ride, but the problem is still there. Even tho you never experienced it(lucky you), doesnt mean the problem is non existent. Dont be like Karen(camouflaged by the name Dick above here) and talking ignorantly like she know the boss of this issue. Dynas rubber mounted engine is a well known cause for the wobbling. Facts.
You shouldnt trust me, like everything else on the www and forums, just read a little bit about this subject and then learn. #Geometry
Last edited by Bob_fxdb; Jan 9, 2022 at 09:46 PM.
