ABS vibration
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
From experience. See below
Go sit on any bike (especially a V-Twin rubber mounted engine)
Sitting on the bike with the engine at idle and level ground so it will not roll.
No brakes applied and you can feel the engine vibrate a little, but not too much in the handle bars.
Now hold the front brake and that natural vibration will be magnified back up through the fork tubes to the handle bars and you will feel it much more.
Now since vibration and sound are very subjective, it is hard to say how much is too much.
I think someone mentioned already that if you have bad motor mounts, the vibration will be much more pronounced.
So, that is something that should be looked at.
But the fact is, you are going to feel this vibration much more with the front brake applied than with it off.
Just the way it is.
But one thing I am sure of, it is not the ABS causing it.
+1
Go sit on any bike (especially a V-Twin rubber mounted engine)
Sitting on the bike with the engine at idle and level ground so it will not roll.
No brakes applied and you can feel the engine vibrate a little, but not too much in the handle bars.
Now hold the front brake and that natural vibration will be magnified back up through the fork tubes to the handle bars and you will feel it much more.
Now since vibration and sound are very subjective, it is hard to say how much is too much.
I think someone mentioned already that if you have bad motor mounts, the vibration will be much more pronounced.
So, that is something that should be looked at.
But the fact is, you are going to feel this vibration much more with the front brake applied than with it off.
Just the way it is.
But one thing I am sure of, it is not the ABS causing it.
+1
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
No it does not always. If the valve is stuck it will NOT throw a code. You should read on it a bit.
Outstanding HDF Member
Joined: Jan 2011
Posts: 2,590
Likes: 31
From: Western Illinois, land of bad roads, and corrupt politicians
I remember when you said that ABS sucked, and that you could out perform ABS, because you're a racer. And that ABS was going to get people killed.
Now, you're an expert on ABS.
But that was before the HDF crash and the database reset..... unless of course your are a different qtRACER.
If you are not the original QTRACER, then I apologize.
If you are the original QTRACER, then........same crap..... different day
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
I remember when you said that ABS sucked, and that you could out perform ABS, because you're a racer. And that ABS was going to get people killed.
Now, you're an expert on ABS.
But that was before the HDF crash and the database reset..... unless of course your are a different qtRACER.
If you are not the original QTRACER, then I apologize.
If you are the original QTRACER, then........same crap..... different day
Now, you're an expert on ABS.
But that was before the HDF crash and the database reset..... unless of course your are a different qtRACER.
If you are not the original QTRACER, then I apologize.
If you are the original QTRACER, then........same crap..... different day
Outstanding HDF Member
Joined: Jan 2011
Posts: 2,590
Likes: 31
From: Western Illinois, land of bad roads, and corrupt politicians
A general high speed vibration instead of the normal pulse can be attributed to extra mass harmonics of the fairing/radio/gauges/wiring doing a feedback of the frequency. Handlebar height also changes the harmonics, as does engine rpm. As rpm changes the frequencies go through different levels of harmonics. Sometimes the frequency hits a destructive harmonic, where thing feel like they are going to shake things apart. At other times they hit an additive harmonic, where the perceived feeling is a buzz rather than a shake.
A stuck or malfunctioning valve, no matter what, would still give the tactile feedback to the lever....... and that was never mentioned by the OP.
EDIT:
I got called away just before finishing ...........................
And now the number one reason it isn't the ABS. (Pay attention QTRACER. You might even agree with this)
The bike was sitting still with the front brake applied .............. that means the little amber symbol on the gauge was flashing...........
Meaning?
The ABS is NOT active when the bike is sitting still.
Last edited by shooter5074; May 1, 2014 at 08:09 AM. Reason: Some people are beyond stupid
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