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-   -   High speed vibration (https://www.goldwingowners.com/forums/11-honda-goldwing-forum-general-discussion/127617-high-speed-vibration.html)

Buzzard68 11-15-2019 01:25 PM

High speed vibration
 
While on a ride yesterday my riding buddy decided to open his bike up on a long stretch of desert highway. I decided to follow, it did feel good. My 2005 Wing keeps up well with my friends Concours 14. If we were on a track, not the street, I'm sure I would be a spectator. Anyhow, I got up to an indicated 120mph and a vibration started, which made me back off. It seemed to be in the chassis, not the handlebars or fairing. It was smooth right up to 110mph. It's a 2005, 68K miles, new rear drive unit and propeller shaft, recent Dunlop E4 tires, Centramatic balancers, Traxxion suspension all around. The easy answer is to not go that fast. I do wonder and worry that what ever caused the vibration is a fault, and will get worse, so I'm curious as to what caused it. Why is it OK at 110 and not 120? Do the Centramatic balancers not like high speeds? Front wheel bearings or steering head bearings at fault? Is the new propeller shaft not balanced well? So I'm wondering if anyone has had a similar experience and any ideas as to the cause of this. For the record, at 120mph, it felt like it still had a bit left .

Buzzard68 11-15-2019 03:41 PM

Chopin, please elaborate. Is the GoldWing not safe at speed? Is there an upper limit to it's capabilities? I'm not really afraid to take a bike up to those speeds for moments at a time. If Honda designed that bike not to exceed some lower speed, they should have put in a governor. Surely I'm not the first to take a Wing up to those speeds. It's a much better built bike than some I've had up to those speeds in my past, thinking of a few British built vertical twins I rode in my youth.

Jinx 11-15-2019 04:22 PM

Quote:

Originally Posted by Buzzard68 (Post 2220283)
Chopin, please elaborate. Is the GoldWing not safe at speed? Is there an upper limit to it's capabilities? I'm not really afraid to take a bike up to those speeds for moments at a time. If Honda designed that bike not to exceed some lower speed, they should have put in a governor. Surely I'm not the first to take a Wing up to those speeds. It's a much better built bike than some I've had up to those speeds in my past, thinking of a few British built vertical twins I rode in my youth.

No the bike is fine at that speed but Chopin isn't. I think his limit is about 70 and that is being generous .
The bike will get up to around 127 mph , measured with my Zumo 590, before it runs out of power. It was rock solid at that speed. I know Dyna beads upper spec is 105 mph. So my guess is the Centramatic balancers.

crownfire 11-15-2019 06:42 PM

Mine has been to 115. Not sure if that's the bike limit, but it was my limit on the road I was on.

Now, Lee going over 55 would not shock me, but him beating anyone to an exit would.

Buzzard68 11-15-2019 06:49 PM

Ahh, good to see Jinx had a top speed run. I imagine, what with the built in speedo error, I was actually up to about 105-110. Interesting thing about the Dyna beads, topping out at 105. I wonder why. The Centramatics had no warnings about top speed, but in reality, it seemed like the tires/wheels became unbalanced, it was not a violent shake, just a vibration. If that is what is was, I'll quit worrying. And, for what it's worth, quit doing that high a speed. Anyone else have input about the Centramatics?

joe in calif 11-15-2019 08:50 PM

at those speeds all you need to do is hita rock or a pot hole, and it's good by. I know a guy that has a Kawasaki ZX 1400, same motor as in the Concours but not tuned down. He hits 180 on the street, he's nuts and awful lucky. (I had an 09 Concours 1400) never took it that fast.

keller1234 11-16-2019 05:57 AM

49 Attachment(s)
Quote:

Originally Posted by joe in calif (Post 2220311)
at those speeds all you need to do is hita rock or a pot hole, and it's good by. I know a guy that has a Kawasaki ZX 1400, same motor as in the Concours but not tuned down. He hits 180 on the street, he's nuts and awful lucky. (I had an 09 Concours 1400) never took it that fast.

I've always been told over 70 you hit something you're dead anyway, might as well let it stretch its legs! I don't think I've ever been to a hundred and twenty, but definitely a hundred hundred and ten no quiver on the atpck F6B

Luv2fish 11-16-2019 07:43 AM

At that speed it could have been wind sheer on any of the Tupperware or windshield. Something as minor as having the windshield vent open could cause a vibration. Iím betting it was the centamatics also but Iím surprised you were able to isolate the vibration to the wheels and frame. Iíve been at 100 with my 2015 and thatís fast enough for me.

Steve



Sent from my iPhone using Tapatalk

Buzzard68 11-16-2019 11:07 AM

The vibration was minor, but enough to make me back off at that speed. It was definitely in the pegs and seat, not the bars or between my legs. I never took the time to check out my mirrors. As I said, at that speed I was taking no chances. I will say that this GoldWing continues to amaze me, performance beyond what I expect.

budoka 11-16-2019 01:39 PM

I have Centramatics on my Wing ('09) and have seen an observed 220 kph (136mph) on the clock, no worries. Don't really know what your issue might be, but a large fairing equipped m/c book says never exceed 80 mph...if you believe that. To make a point at any speed a brick wall is deadly.


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