Front fork strength

shampson shampson at
Sat May 17 00:07:30 PDT 2008

Ped, They are probably "Wilbers" which what I have fitted.

For any one upgrading to a zx12 rear shock I suggest also fitting the dog
bones shock linkages from a zzr1100, any model. They are shorter than the
Gpz and lift the back end up about an inch above stock and therefore quicken
the steering.


-----Original Message-----
From: Ped [mailto:pedmail at] 
Sent: 17 May 2008 07:20
To: gpzlist at
Subject: Re: Front fork strength

I installed progressive springs on mine last year and I found it to be a 
huge improvement. It doesn't dive nearly as much during braking, and yet 
it doesn't feel harder on rough surface. Unfortunately I can not find 
the link to the manufacturer, but they are German made anyway and I 
don't know if they are available in the US. I'm sure though that you'll 
have plenty of brands to choose from 'over there'. I'd recomment 
progressive springs to solve the problem.

'96 "Black Stealth" GPZ
(currently in 'Farawaygistan' and not riding)

blackbear at skrev:
> I installed a high-note car horn when the stock horn died on 
> the GPZ.  I thought there was plenty of room between the fender and 
> the horn, but I noticed the top of the (fairly newly painted) fender 
> has been worn down to the plastic and the horn is damaged.
> I checked, and it feels like the forks are compressing a LOT more than 
> I was used to.
> I had the oil changed a couple years ago when I had the seals 
> replaced.  using the mix of 10w and 15w that Scaps recommended.
> Is there any way of strengthening the front end short of cartridge 
> emulators?  i can't really afford that kind of conversion at this time.
> i will also look at ways of moving the horn so it won't hit anymore.  
> I put it where the stock one was as I was in a hurry to get the bike 
> inspected.
> Michael in holley, NY

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