05 gl1800 rides rough

Information and questions on GL1800 Goldwings (2001-2017)
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05 gl1800 rides rough

Post by bushman_johnson » Fri Apr 02, 2010 11:38 am

purchased used 2005 goldwing with 22000 miles. Bike ride very rough. Have adjust rear shock up and down from 2 pounds to 15 pounds. This does not help. seems front shock are way to hard. of course they do go up and down but I feel ever little bump in the road. tire pressure as followed 41 rear,36 front with new dunlop elite3 tires. What do you think my problem could be. don't know anything about the bike other than one owner with heavy passengers. Have not been able to talk to the owner. He had the bike since new. I am wondering can I adjust front shocks. Is there any way to lessin the harshness of the ride. give me some in put please.

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Re: 05 gl1800 rides rough

Post by WingAdmin » Mon Apr 05, 2010 10:22 am

You could try a thinner fluid in the shocks - but I can't see any reason why the fluid would have been replaced when the bike is only 5 years old. Do you know for sure this is unusual for this bike? Have you been on a similar GL1800 and had a much softer ride?

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Re: 05 gl1800 rides rough

Post by gareva1 » Mon Apr 05, 2010 12:02 pm

First thing I would bring to your attention is that the numbers on the shock adjustment is not a measurement of pounds. That number is the shock preload rating, which is not represented in any unit of measure. The 1500 had an air shock, but the 1800 shock is hydraulically actuated. What is worse is that many 1800 bikes came from the factory with their rear shock hydraulic cylinder not completely full of fluid; this causes the bike to not preload as much as it could, resulting in some of the issues you may be having.

Also, understand that the stock spring is rated at either 900 or 950 (can't remember), which is a little light for the typical use these bikes see...Traxxion Dynamics makes a replacement rear shock and spring assembly that is great---if you are on a budget, just the traxxion spring makes a difference, as it is an 1100 pound spring as opposed to the 900-something pound stock spring. If you can afford it, traxxion's shock and spring assembly makes a huge difference...if you can't, try to find a new trike take off stock shock and put the traxxion spring on it...if you can't swing that, then put your shock on the new spring, and make sure the hydraulic cylinder is full.

For the front, it may not hurt to have the forks rebuilt---many people do fork rebuilds between 20-30k miles, many others never rebuild forks until a seal leaks, just a personal preference---and at that point replace the fork springs with an aftermarket offering since you're already in there. Traxxion and Racetech both make systems to help the front, but they are quite expensive compared to the cost of just replacing the fork springs. I'd start with springs and new fork fluid, and then see how the front feels to determine whether the extra expense is worth absolute perfection in the front...you can buy a set of traxxion fork springs for a little over $100, but the full traxxion front cartridge dampners will cost you over $1000 by the time you get installation...

If you lower the front tire pressure to 36 or 38, you will probably get a softer ride, but you will also get fewer miles out of the tire before it's time to swap tires...I have the bridgestones on the front (run a CT on the back) and I keep the stone at 41---when I ran stones front and back, I ran both tires at 41.

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Re: 05 gl1800 rides rough

Post by 01 winger » Sat Apr 10, 2010 5:23 pm

Mine road rough i did the nickel trick on the anti-dive valve on the left shock.Drill a 7/32 hole in the center of a nickel take the two screws out of anti-dive valve put in nickel put bolts in take it for a ride if it doesn't solve problem take it back out but i would say thats the problem.

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Re: 05 gl1800 rides rough

Post by gareva1 » Sat Apr 10, 2010 5:32 pm

What 01 winger has fabricated from a nickel is called an anti dive shim---a very common modification when you replace the stock front fork springs with aftermarket units or redo the entire front suspension...although a nickel does the job, if you are looking for something a little more elegant and made for the task, you can buy a machined shim from ebay:

http://cgi.ebay.com/ebaymotors/GL1800-G ... 3a58b26bfa

Although I wouldn't recommend shimming a stock suspension, its easy to try and undo...the anti-dive valve is a mechanical crutch to make up for the way too soft suspension the wing comes with from honda...without it the wing will be softer riding, but may not handle as well as you would like in the curves.

Try it and see, you may like the result, you may not...it only takes 5 mins to do it and undo it, so it's worth a shot.

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Re: 05 gl1800 rides rough

Post by Wingrider05 » Tue May 03, 2011 8:27 pm

I know it refers to another forum, but I noticed this post about 6 months ago, and found it to be very detailed, I hope it helps.
Good Luck.

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Re: 05 gl1800 rides rough

Post by thrasherg » Wed May 04, 2011 9:41 am

Can you not contact the previous owner and ask him if the suspension has been modified? Usually goldwings have very SOFT springing not hard!! I changed all my suspension front and rear to have much stiffer springs fitted (Traxxion) and I still wouldn't call it anything like harsh.. Sounds like the previous owner may have been a heavy gentleman and had some things changed! If he did, he would probably remember what and could tell you, then we can help you get it sorted. If the suspension is stock then either you have a real problem with the bike, or you have some unusual expectations about the ride quality? It would be good to contact the previous owner and just ask what he had modified (if anything).


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