Bagger Brace or True trac.
#41
01-02-2009, 12:11 PM
Club Member
I have deliberately ridden my dresser with the rear stabilizer disconnected, and while I could tell the difference in the feel of the engine, I cannot say it causes any perceptible vibration. The reduced quality in handling was immediately obvious! This really is not an issue. The improvement in ride quality and handling is what these stabilizer kits are all about. I have not found any disadvantage in fitting them on two bikes.
Remember that Buells have always had three stabilizers (I have one of those as well!), Erik Buell having patented the system. Current Sportsters also have them.
Remember that Buells have always had three stabilizers (I have one of those as well!), Erik Buell having patented the system. Current Sportsters also have them.
#42
01-02-2009, 12:45 PM
>>if horizontal at one end of the motion, would swing 0.573 degrees and produce a sideways motion of about 2/10,000".<<
I work with these links and there is almost that much tolerance in some links. Also, the vibration is assuming there is movement longitudinal direction of the engine as it pulses. We don’t know that it does. I can see some movement when the rider is accelerating because the engine is being pulled back by the belt. The degree of how much that engine should move is based on the quality of the motor mounts. I would guess older bikes would really feel that difference.
As for your link length, if the location rod end attached to the frame is constant, then it doesn’t matter how long the rod because the arc in degrees remains the same. Since the engine is now attached to the frame via the rod, the pivot should remain the same.
Anyways, it appears these differences don’t have the ill effects that were considered. Likely because the tolerances of an aircooled engine are large enough to absorb any ill effected not considered in the design.
I did find it interesting that the solution to the vibration some are feeling in the 09s floor boards (including me) is to just tighten up all the exhaust mounts and joints. I hope it is just that easy.
Beary
I work with these links and there is almost that much tolerance in some links. Also, the vibration is assuming there is movement longitudinal direction of the engine as it pulses. We don’t know that it does. I can see some movement when the rider is accelerating because the engine is being pulled back by the belt. The degree of how much that engine should move is based on the quality of the motor mounts. I would guess older bikes would really feel that difference.
As for your link length, if the location rod end attached to the frame is constant, then it doesn’t matter how long the rod because the arc in degrees remains the same. Since the engine is now attached to the frame via the rod, the pivot should remain the same.
Anyways, it appears these differences don’t have the ill effects that were considered. Likely because the tolerances of an aircooled engine are large enough to absorb any ill effected not considered in the design.
I did find it interesting that the solution to the vibration some are feeling in the 09s floor boards (including me) is to just tighten up all the exhaust mounts and joints. I hope it is just that easy.
Beary
#44
01-02-2009, 01:26 PM
Club Member
>>if horizontal at one end of the motion, would swing 0.573 degrees and produce a sideways motion of about 2/10,000".<<
I work with these links and there is almost that much tolerance in some links. Also, the vibration is assuming there is movement longitudinal direction of the engine as it pulses. We don’t know that it does. I can see some movement when the rider is accelerating because the engine is being pulled back by the belt. The degree of how much that engine should move is based on the quality of the motor mounts. I would guess older bikes would really feel that difference.
As for your link length, if the location rod end attached to the frame is constant, then it doesn’t matter how long the rod because the arc in degrees remains the same. Since the engine is now attached to the frame via the rod, the pivot should remain the same.
Anyways, it appears these differences don’t have the ill effects that were considered. Likely because the tolerances of an aircooled engine are large enough to absorb any ill effected not considered in the design.
I did find it interesting that the solution to the vibration some are feeling in the 09s floor boards (including me) is to just tighten up all the exhaust mounts and joints. I hope it is just that easy.
Beary
I work with these links and there is almost that much tolerance in some links. Also, the vibration is assuming there is movement longitudinal direction of the engine as it pulses. We don’t know that it does. I can see some movement when the rider is accelerating because the engine is being pulled back by the belt. The degree of how much that engine should move is based on the quality of the motor mounts. I would guess older bikes would really feel that difference.
As for your link length, if the location rod end attached to the frame is constant, then it doesn’t matter how long the rod because the arc in degrees remains the same. Since the engine is now attached to the frame via the rod, the pivot should remain the same.
Anyways, it appears these differences don’t have the ill effects that were considered. Likely because the tolerances of an aircooled engine are large enough to absorb any ill effected not considered in the design.
I did find it interesting that the solution to the vibration some are feeling in the 09s floor boards (including me) is to just tighten up all the exhaust mounts and joints. I hope it is just that easy.
Beary
In essence a rubber mount Harley or Buell engine is rocking up and down, but rotating around the rear mount. So most of the motion we can see is at the front engine mounting, which on all dressers to 2009 was a simple device with a lateral stabilizer.
Theoretically the sideways motion available at the rear mounting is minimal, but it is enough to be a source of concern when riding. Erik Buell patented the third stabilizer and if it is good enough for his bikes, to make them some of the best handling bikes there are, we should all jump on the wagon and get one.
The factory has changed the rubber mounts on dressers for 2009 and it will be interesting, when they have been around a while, to see if anyone makes a stabilizer kit for them, or the factory effort is considered to be good enough. In the meantime the third stabilizer is a great add-on for earlier versions!
#45
01-02-2009, 02:10 PM
Elite HDF Member
#47
07-31-2009, 07:38 AM
#48
12-10-2015, 02:11 AM
Tourer
#49
12-10-2015, 06:11 AM
Club Member
#50
12-10-2015, 05:16 PM
Elite HDF Member
On the post'08 frame there should be no need for either. Most likely something is worn out or bent. Inspect you frame and suspension components and my money is on your finding the problem in one or both of these areas.