Front fork rebuild


Information and questions on GL1800 Goldwings (2001-2017)
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tomneill
Posts: 1
Joined: Wed May 09, 2018 8:42 am
Location: seattle, WA
Motorcycle: 2008 GL1800HPNA

Front fork rebuild

Post by tomneill » Fri Jan 25, 2019 10:32 am



Greetings all! I have a 2008 GL1800, purchased this last year with approx 32,000 mi. First Goldwing. I have slowly be sprucing it up - changing all the fluids, plugs, etc. and am wondering about the front forks. They don't seem to be absorbing bumps that well, so I am assuming I need to rebuild the front end. What do folks recommend? Rebuild with OEM springs and parts, go the progressive spring route, or the monotube approach? I realize am probably opening a huge can of something on this, but would love some thoughts, opinions. Cost is not a consideration - more interested in how the ride is affected by the various options. Thanks in advance!



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Viking
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Motorcycle: 2009 GL1800 AD
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Re: Front fork rebuild

Post by Viking » Fri Jan 25, 2019 4:27 pm

I used Progressive Springs, and am happy. My riding partner used Progressive monoshocks, and was happy, however, it has been stated elsewhere on here that the Progressive monoshocks do not stand up. My riding partner passed away, and his bike was sold, so I have nothing to go on as far as the reliance of those monoshocks. Many people swear by Traxxion Dynamics enhancements, however, they are known to be more of a harsh ride than Progressives, and add an inch of height to the front end.
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Steve F
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Re: Front fork rebuild

Post by Steve F » Fri Jan 25, 2019 4:30 pm

You said that it doesn't seem to be absorbing the bumps so well. Something that you may need to address would be the anti-dive valve. If that thing is stuck, it affects the shock absorbing ability of the front end. When I had my forks rebuilt, it was found that the valve was not working, and they replaced it.
"To ride is the reason, the destination the excuse."

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keithg64
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Re: Front fork rebuild

Post by keithg64 » Sat Jan 26, 2019 12:01 pm

I disabled my anti dive, replaced the bushings and seals and added progressive springs. Much better ride up front . For the rear I replaced the 07 with a 12 rear shock and spring with actuator. All that much better.
It's not what you buy, it's what you build.

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wingpilot08
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Joined: Wed Jan 18, 2012 4:43 pm
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Motorcycle: 2008 GL1800-HPNA - 50,000+ miles
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Re: Front fork rebuild

Post by wingpilot08 » Tue Jan 29, 2019 12:01 pm

I rebuilt my forks at around 25,000 on my 2008 HPNA. I'm the second owner and I believe that the previous owner did nothing to the forks (he had passed away and the bike was sold in 2015 with just 3300 miles on the odo). I did the rebuild due to a leaking left fork (possibly due to anti dive) and did replace the stock springs with Progressive springs. I also replaced all consumables for each fork and disabled the antidive. I was also looking at using the monotubes, but at the time price was an object. Now with over 50,000 miles on the bike, I very happy with the upgrade to the progressive springs and most likely with do another rebuild within the next 10,000 miles.
themainviking wrote:
Fri Jan 25, 2019 4:27 pm
Many people swear by Traxxion Dynamics enhancements, however, they are known to be more of a harsh ride than Progressives, and add an inch of height to the front end.
I have also heard that there is a lot more maintenance required with Traxxion.

As for the progressive monotubes, they do offer a (limited) LIFETIME warranty on the tubes! "We also stand behind our Fork Cartridge Kits with a limited lifetime warranty."
08' GL1800-HPNA - Red 50,000+ miles
1988 Bunkhouse Camper
Darkside #1720
1975 CB550-4 mileage unknown
1982 Yamaha 650 Maxim 30,000 miles
1987 Yamaha XVZ-1300 Venture 109,000 miles
1982 CB750-FSS 60,000+ miles
1996 Honda GL1500-SE 210,000 miles

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cahaulah
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Re: Front fork rebuild

Post by cahaulah » Sun Feb 03, 2019 11:20 am

My bike is acting weird, started when I replaced the last set of tires. Feels fine at speed, but when I shake the handlebars from side to side while sitting still, and suddenly stop shaking them, the bike continues wobbling. My buddies think it's the steering head bearings (bike has nearly 53k on it) so I decided to do the all balls, new fork seals, and to upgrade the front shocks. Progressive springs or monotube cartridges? I know there were problems with the monotubes at first, but seem to be corrected now, and they have a lifetime warranty. Price IS an object, hence no Traxxion, but for less maintenance, I'd go with the monotubes. Opinions? Thanks
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newday777
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Re: Front fork rebuild

Post by newday777 » Mon Feb 04, 2019 9:23 am

Even if you decide to go with the monotubes there won't be less maintenance.
You will still need to change the fork oil(yes there is still fork oil needed for lubrication, just not as much oil)and inspect and change the stock bushings in the forks and inspect the fork lowers for egg shape wear every 24,000 (maximum)miles, per Honda repair manual specifications.
If you don't service the forks regularly, you'll be buying new fork lowers and fork tubes shortly, I've seen forks pulled apart with 15,000 from new(pulled for Traxxion and Racetech upgrades) that were worn in the lower leg bore measuring with a bore micrometer. They will wear to beyond the service limits fast with old oil.
Honda farms out the manufacturing of the fork parts and there are flaws that are let slide through in the inspection process. I've measured new fork legs and found uneven bores.
It's a delirious thought to think there'll be less maintenance required. The forks take a huge beating with the weight of our wings and the loads we put on them.

BTW
Don't buy progressive springs if you are going the cheapest route. Can you get by with them? Yes, but they are not the better ride people think you'll get. You can bottom out the forks easily with progressive springs, which damages the fork parts.
Get Racetech or Traxxion springs rated for the weight you will be loading your bike with. They have different rated springs depending on rider and passenger weights.

cahaulah wrote:
Sun Feb 03, 2019 11:20 am
My bike is acting weird, started when I replaced the last set of tires. Feels fine at speed, but when I shake the handlebars from side to side while sitting still, and suddenly stop shaking them, the bike continues wobbling. My buddies think it's the steering head bearings (bike has nearly 53k on it) so I decided to do the all balls, new fork seals, and to upgrade the front shocks. Progressive springs or monotube cartridges? I know there were problems with the monotubes at first, but seem to be corrected now, and they have a lifetime warranty. Price IS an object, hence no Traxxion, but for less maintenance, I'd go with the monotubes. Opinions? Thanks

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Asphaltmaniac
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Re: Front fork rebuild

Post by Asphaltmaniac » Wed Feb 06, 2019 11:19 am

tomneill wrote:
Fri Jan 25, 2019 10:32 am
Greetings all! I have a 2008 GL1800, purchased this last year with approx 32,000 mi. First Goldwing. I have slowly be sprucing it up - changing all the fluids, plugs, etc. and am wondering about the front forks. They don't seem to be absorbing bumps that well, so I am assuming I need to rebuild the front end. What do folks recommend? Rebuild with OEM springs and parts, go the progressive spring route, or the monotube approach? I realize am probably opening a huge can of something on this, but would love some thoughts, opinions. Cost is not a consideration - more interested in how the ride is affected by the various options. Thanks in advance!
I did the upgrade with Traxxion springs and have extra fork travel now. A fairly good improvement for not a lot of cash.
For fun! Do the zip tie experiment with your bike...Bike on center stand place a zip tie at the bottom of the fork tube then just take the
bike off the center stand then put it back up. measure how far the tie moved. Then off the center stand again and then sit on the
bike. Then measure again with it back on the center stand. Leave the tie where it is go for a short ride then get your third measurement.
I found that I only had just over an inch of travel left and thats with out hitting any sharp bumps or simulated panic stops.
It was just little old 155lbs me on the bike when I did this experiment.
An eye opener for sure.....



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