Shock Spring Rate

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Shock Spring Rate

Beitragvon CanUK » 12. Februar 2015, 17:02

Hello Gents,

Does anyone know the spring rate of the standard shock? I've searched the forum ("federrate" in German?) and Google but not found any figures.

Thanks,
CanUK
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Re: Shock Spring Rate

Beitragvon dennis121181 » 13. Februar 2015, 10:18

I think 130 nm. But i am not sure.

LG Dennis
9 von 10 Stimmen in meinem Kopf sagen mir das ich ganz normal bin, die andere summt die Melodie von Tetris.
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Re: Shock Spring Rate

Beitragvon CanUK » 13. Februar 2015, 14:29

Thanks Dennis. That does seem rather (unfortunately) high if correct :S
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Re: Shock Spring Rate

Beitragvon CanUK » 13. Februar 2015, 18:41

125N/mm per the service manual (I wouldn't have thought to have looked there, but a kind soul pointed it out). So you weren't too far off Dennis (well remembered).

I had been thinking of a GSXR1000 shock as an interim swap, but none of them really come close to that rate (according to RaceTech):

7.7Kg/mm (01/02)
8.6Kg/mm (03/04)
8.1Kg/mm (05/06)
10.1Kg/mm (07/08)
11.6Kg/mm (09/11) -- wrong shape lower mount

Higher rate springs available, but that eats up a log of the savings. I'm sort of thinking out loud here, so please ignore me if this is all old news :D
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Re: Shock Spring Rate

Beitragvon dennis121181 » 13. Februar 2015, 20:10

In my projekt, i will test a gsxr k3 rear suspension.
Rocco has one in his racer.
Its 15 mm longer and lift the teil.
LG Dennis
9 von 10 Stimmen in meinem Kopf sagen mir das ich ganz normal bin, die andere summt die Melodie von Tetris.
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Re: Shock Spring Rate

Beitragvon CanUK » 13. Februar 2015, 21:58

Height aside, are not concerned about the spring rate being so soft by comparison? 12.75Kg/mm down to 8.6Kg/mm seems a pretty big drop (>30%)?
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Re: Shock Spring Rate

Beitragvon Rocco » 14. Februar 2015, 20:31

I dont't know the springrate of the Showa GSXR, but trust me, the serial shock of the K1/1000 in my SZR is nearly perfect for a very little money.
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