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I have never experienced the wobble on my '15 FXDB. I am very used to and comfortable cornering at high speeds on motorcycles. A previous poster mentioned body position, that is a very likely possibility. If you are not aware of how your body affects the overall handling geometry of the bike, pick up a book called "Twist of the Wrist" by Keith Code and have a read. Yes, it is geared towards sport bikes, but geometry applies, regardless of the platform.
@Badbastard whats up my dude - here's my vote for something to "try" if all else has failed. Adding the below top link aided in clearing up SOME of my wobble - essentially adding to the overall setup rigidity and reducing lateral engine movement. Reason being (in my case) - the rubber in the OEM top link was pretty much blown out.
While I understand the whole "Harley's weren't intended to do this" and "All Dynas do that" theme in many responses here, I'll disagree a little bit. It's more like "All Dynas exhibit some instability until you properly diagnose and address the cause of the instability." The fact that these bikes will never respond like a sportbike (which is 1000% true) doesn't mean they can't be stable and safe when pushed in high speed sweepers. But it is common that some OEM shortcomings need to be addressed sometimes to provide that performance. I've certainly worked hard to get closer to that goal, and my bike is really pretty competent when pushed hard now (but obviously not a sportbike). But there are so many variables caused by the basic design of the platform that it can take a lot of attention to solve everything... Unfortunately, it seems that many of us have experienced similar symptoms that ended up being caused (and solved) by a lot of different things. But if you want your bike to feel stable in a 100mph sweeper, don't accept that it can't... Just be methodical and make sure you fully understand how a Dyna chassis works (it's kind of unique).
Originally Posted by SpyGoat
I have never experienced the wobble on my '15 FXDB. I am very used to and comfortable cornering at high speeds on motorcycles. A previous poster mentioned body position, that is a very likely possibility. If you are not aware of how your body affects the overall handling geometry of the bike, pick up a book called "Twist of the Wrist" by Keith Code and have a read. Yes, it is geared towards sport bikes, but geometry applies, regardless of the platform.
Originally Posted by F86
I might be reaching a little bit here, but I wonder whether there's anything you could try with your body position in fast corners? The rider is part of the overall assembly... Maybe you're unintentionally "unbalancing" things in fast corners?
OP, please don't take offence at SpyGoat and I both suggesting you pay attention to body position... For all I know, you're a really expert skilled rider (I'm still trying). But it is really important when going fast!
Me and the great Keith Code a couple of years ago... I've been lucky enough to have Keith as a coach a couple of times, which was a great experience!
@Badbastard whats up my dude - here's my vote for something to "try" if all else has failed. Adding the below top link aided in clearing up SOME of my wobble - essentially adding to the overall setup rigidity and reducing lateral engine movement. Reason being (in my case) - the rubber in the OEM top link was pretty much blown out.
This obviously helped me too, in that the solid link makes alignment much more precise and consistent. Not a "cure all," but a help when dialing things in. Possibly at the expense of a touch more noticeable engine vibration, but that's a trade-off I'm fine with!
I had a low speed wobble (30 -40). Dealer said tires were cupped which I really couldn’t see. But, changed the tires for new Michelin C2s. The fastest I’ve gone since the swap out is 85...and it’s silky smooth now throughout the range.
QUOTE=Fullcircle;18790435]Should we really have to spend all this time and money trying to fix what the motor company gave us?[/QUOTE]
it’s a ‘17. He didn’t mention that it always did that.
Last edited by TriGeezer; Jan 9, 2020 at 01:28 PM.
Should we really have to spend all this time and money trying to fix what the motor company gave us?
Probably not... I think it's just a case of everything being a compromise, and HD chose to favor a certain side of things, and some of us (but not all) favor the other end... Because the front and back wheels are really only connected by two rubber mounts, they could've made everything really stiff to limit unwanted movement at the expense of vibration control, or they could've chosen pretty effective vibration control at the expense of high speed stability (which they did). I think they took their best stab at understanding their market... Of course, they also could've invested some more time and money in OEM engine stabilizers, which is what Eric Buell apparently recommended. Also, it seems they solved these issues pretty well with the FXR, but many HD customers at the time hated it.
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