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how long do they last before they wear out and need replacing?

whats the service length?
 

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My bike has had them in the forks since 1999 by original owner, I checked them a month ago and are still good, 74,000 miles.
The service specs are on the Progressive web site. I'm on a road trip so can't remember them.
 

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The springs on my 92 Aspencade were sagged when I bought her in 07, with just 11,XXX mi on her. I used a cheater washer to bring the ride height back up, until I could afford the time to install new Progressives.

The service limit of your lower spring (there's 2 different length springs per tube) is 390.6mm/15.38".
 

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Dusty
I think from the post header the question is on Progressive spring service length and life span. I could be wrong though.
 

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newday777 wrote:
Dusty
I think from the post header the question is on Progressive spring service length and life span. I could be wrong though.
********update*******

i swapped the fork oil from 10w....360cc

to 15w...300cc

i believe my forks were overfilled

rides much better now:applause:


they are prgressive springs, single springs
 

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Might depend on how much weigth they routinely have to carry. ;)
 

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Hello Guys:
I am a first owner of a 1994 GL1500ES but I don't know what type of springs are on it; Does any one has pictures of regular and progressive?
Thanks
Hector
 

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Hello Guys:

I am a first owner of a 1994 GL1500ES but I don't know what type of springs are on it; Does any one has pictures of regular and progressive?
Thanks
Hector


Early Progressive springs for the 1500s were two piece springs, a coil inside a coil, wound in opposite directions. Later ones are single piece as described above. When the free length is shorter, they've sagged.

Progressive # 11-1152 is for GL-1500 GoldWings
20.50 " Free Length
1.35" OD
35/80 Lbs/In rate.

To my knowledge the factory Honda springs for the 1500s usually were two springs, one on top of the other, in each leg. Someone will correct me if wrong.

If the 1500 is triked and running a raked triple tree, better results, better ride, more travel will be seen as the front end sits up better if one uses the #11-1112 which is original for a Kawasaki KZ 1200 / 1300
20.75 " FL
1.19" OD
45/70 Lbs/In.

OR the #11-1122 which is intended for the Honda GL1200 series and a 1/2 or 3/4" spacer at top.
20.00 " FL
1.34" OD
45/70 Lbs/In

I had a set of the #11-1152 in my '97 based trike early on but when I added the 6 degree rake, the front set lower, the springs sagged soon, and ride was crappy. I have tried both the #11-1122 and #11-1112 springs in the GL1500 trike and both are better by far, but the #11-1112 Kawasaki ones worked best and are there now. The other #11-1122s are my "spares".

I have a set of the #11-1122 in my '85 GL1200 that have been there since the mid '90s, still perfect
:waving:
 

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