progressive suspension


Information and questions on GL1500 Goldwings (1988-2000)
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1goldwingnut
Posts: 62
Joined: Wed Aug 08, 2018 10:08 pm
Location: Athens wi
Motorcycle: 95 20th anniversary GL1500A

progressive suspension

Post by 1goldwingnut »



I bought my 95 aspy last year and did a lot of restoring. My suspension has always worked good for me but I have a question. There was a sticker in the trunk that said progressive suspension. Without taking rear and front apart, how can I tell what is in my machine. Or can't I. I mainly want to change the fork oil and don"t know how much to put in. Also what pressure is recommended . Even thought like I said, I like the feel and ride.



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1goldwingnut
Posts: 62
Joined: Wed Aug 08, 2018 10:08 pm
Location: Athens wi
Motorcycle: 95 20th anniversary GL1500A

Re: progressive suspension

Post by 1goldwingnut »

Is there also a progressive rear shock? I'd so how do I know if I have one.

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WingAdmin
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Motorcycle: 2000 GL1500 SE
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Re: progressive suspension

Post by WingAdmin »

You can't tell if you have progressive springs in the front unless you open them up and pull them out to see.

Progressive rear shocks look similar to OEM, but they are clearly identified:




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1goldwingnut
Posts: 62
Joined: Wed Aug 08, 2018 10:08 pm
Location: Athens wi
Motorcycle: 95 20th anniversary GL1500A

Re: progressive suspension

Post by 1goldwingnut »

Thanks for the replies. I'll look at the rear and do a front fluid change at about mid level and see how it feels I guess.

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CrystalPistol
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Location: Shenandoah Valley of Virginia
Motorcycle: 1997 GL1500SE/'98 Lehman Trike

Re: progressive suspension

Post by CrystalPistol »

1goldwingnut wrote:
Fri Oct 25, 2019 7:29 am
I bought my 95 aspy last year and did a lot of restoring. My suspension has always worked good for me but I have a question. There was a sticker in the trunk that said progressive suspension. Without taking rear and front apart, how can I tell what is in my machine. Or can't I. I mainly want to change the fork oil and don"t know how much to put in. Also what pressure is recommended . Even thought like I said, I like the feel and ride.
Looking at the rear shocks, if Progressive 416 series, they'll look alike. 1500s came with one air chamber, one coil …. not matched. If the one has a coil spring showing, look close at bottom, it could be a Progressive Suspension 450 IAS but the ones I have seen say "Progressive Suspension" on the coil. As to fork springs, early Progressive Suspension fork springs were two parts, later just one part per side. Below is specs on the later Pogressive # 11-1152 for GL-1500 GoldWings 20.50 " L <>1.35" OD <> 35/80 Lbs/In. …. Progressive recommends NO air with their fork springs.
Make Courtesy your "Code of the Road" …

… & Have a Safe Trip!
:)

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CWN
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Location: Patterson, Calif
Motorcycle: 43 years winging it

Re: progressive suspension

Post by CWN »

Pic of my 450 ias shock and the link to a european version still available from germany.

https://www.ebay.com/itm/323661831971?
https://www.wilbers-shop.de/en/Motorcyc ... ?year=1997

Gwrra review on the 450 ias: http://archives.wingworldmag.com/januar ... 50ias.html
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