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-   -   Hagon progressive springs (http://forums.sv650.org/showthread.php?t=118024)

Blue_SV650S 20-09-08 09:49 AM

Hagon progressive springs
 
Useless website - amazingly helpful guy on the end of the phone!!! 8)

The story:-

Been thinking of getting some progressive springs, Hagon seem really competitively priced (£55). But I couldn't find the spring rate/s anywhere - website was no help.

I was a little concerned that in the pic the springs looked dual-rate i.e. had a bit that was one rate and a bit that was another, NOT true progressive across the spring. My concern was that you would effectively go from rate x straight to rate y and if those rates were a fair ways apart, it'd be quite horrid. I also didn't know if the springs would be too soft or too weak for my weight.

So decided to pick up the phone ...

Really really helpful/knowledgeable guy on the other end.

It is dual rate and starts at 6.5 and ends at 9 (N/MM - so 65&90). He quashed my fears by saying although it was technically a dual rate spring, under testing the way the spring compresses actually gives a really nice progressive curve.

So I have now ordered up some progressive springs for Hagon :)

Dangerous Dave 20-09-08 09:56 AM

Re: Hagon progressive springs
 
Quote:

Originally Posted by Blue_SV650S (Post 1629933)
He quashed my fears by saying although it was technically a duel rate spring, under testing the way the spring compresses actually gives a really nice progressive curve.

Thats why they are called progressive, its the action not the rate.

Blue_SV650S 20-09-08 10:10 AM

Re: Hagon progressive springs
 
Quote:

Originally Posted by Dangerous Dave (Post 1629940)
Thats why they are called progressive, its the action not the rate.

:rolleyes:

But they are not progressive ... it's more by luck than design!! ... other springs on the market are actually rising rate ... you can see it in the windings ...

I see this like getting emulators as opposed to true cartridge forks ... emulators don't make the forks as good a cartridge forks (how can they?? - they are a bodge) but the results are pleasing enough for it to not really matter ...

The important thing is that although they appear to be made that way, in practice the springs don't simply 'switch' from one rate to another. 8)

Dangerous Dave 20-09-08 10:14 AM

Re: Hagon progressive springs
 
Quote:

Originally Posted by Blue_SV650S (Post 1629948)
The important thing is that although they appear to be made that way, in practice the springs don't simply 'switch' from one rate to another. 8)

Correct, they do not perform any differently to rising rate either.

Blue_SV650S 20-09-08 05:37 PM

Re: Hagon progressive springs
 
Quote:

Originally Posted by Dangerous Dave (Post 1629949)
Correct, they do not perform any differently to rising rate either.


That is not exactly true now is it ;)

Anyway, I should hopefully get them in a few days and can see for myself :)

I figured as the damping is so primitive anyway, why spend twice as much on the more expensive springs ...

mattc 20-09-08 06:36 PM

Re: Hagon progressive springs
 
I put Hagon springs in my curvy and a ZX636C1H shock in the back.

It has made a huge difference, you can push harder without it tying it's self up.

That said I think the SV's (curvy) chassis is so good (well balanced) that a proper front end, combined with a rear shock developed for the SV (opposed to my Bodge), would be another massive improvement.

rossinio 20-09-08 09:43 PM

Re: Hagon progressive springs
 
I was looking at these, are they better than the hyperpro kit springs that come with 15W? The hyperpro has bumped in price recently from 85 to 110 or something but apparently it makes a HUGE difference..

Blue_SV650S 20-09-08 09:51 PM

Re: Hagon progressive springs
 
Quote:

Originally Posted by rossinio (Post 1630308)
I was looking at these, are they better than the hyperpro kit springs that come with 15W? The hyperpro has bumped in price recently from 85 to 110 or something but apparently it makes a HUGE difference..

I highly doubt it, the Hyperpro are proper progressive springs, the Hagon are dual rate - so the Hyperpro are likely to be 'better' i.e. give more true progressive feel.

here is a closeup of a Hyperpro - note the distance between coils (and thickness) vary ... here are some Hagon ... note simply 2 rates ...


Do I think Hyperpro are worth twice the money??? - I doubt that too, hence going for the Hagon myself ;)

rossinio 20-09-08 09:54 PM

Re: Hagon progressive springs
 
I found the hyperpro kit for ~£97 from http://www.twinshack.co.uk/prods/290.html. Do you know where i can get hagons + 15w oil for half that?

Blue_SV650S 20-09-08 10:04 PM

Re: Hagon progressive springs
 
Quote:

Originally Posted by rossinio (Post 1630315)
I found the hyperpro kit for ~£97 from http://www.twinshack.co.uk/prods/290.html. Do you know where i can get hagons + 15w oil for half that?

:scratch: Are you taking the p1ss now?!!? ;)


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