Spring Rates?? Anyone knows?

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Jul 21, 2004 | 11:56 PM

MotoMan_YZ400

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Senior Member

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Joined: Apr 2004

Posts: 302

From: Manassas, VA

Spring Rates?? Anyone knows?

Spring Rates......

Hey i was wondering.... what is the stock spring rate? TRD spring rate? Any other after market guys. I wanna know exactly how much I have and that i potentionally going to.

Thanx,
MotoMan

Jan 27, 2005 | 11:16 PM

bryan

Junior Member

Joined: Jan 2005

Posts: 5

From: Vancouver

Bumping this thread because I'd be interested in learning the rates for the stock and TRD springs too. Anyone know?

Seems like many spring manufacturers don't like to reveal their spring rates. For example, a couple months ago I contacted H&R to ask about their spring rates and they flat out refused to tell me anything except that they springs are X percent stiffer than stock.

To be fair, it may be that some manufacturers are leary of providing rates for progressive springs if they feel that a single rate (or even a rate range) may not accurately represent the characteristics of the spring.

Here are some of the spring rates that I did find:

Code:

BRYAN'S LIST-O-SPRINGS

                          -- Drop --   -- Rate --
Description               Front Rear   Front Rear

Eibach Pro-Kit xA         ???   ???    ???   ???
Eibach Pro-Kit xB         ???   ???    ???   ???
Espelir ASD xB            1.5   1.7    3.2   2.8
GoldLine xA/xB            2.0   2.0    ???   ???
H&R Sport xA/xB           1.5   1.3    ???   ???
HKS SF5 xB                2.1   2.2    ???   ???
Hotchkis xA/xB            1.7   1.6    ???   ???
Megan Racing xA/xB        1.9   1.9    4.7   5.1
RS*R Down xA              1.8   1.4    ???   ???
Tanabe Sustec DF210 xA    2.0   1.8    2.5   3.1
Tanabe Sustec DF210 xB    2.2   2.0    2.8   3.0
Tanabe Sustec GF210 xB    1.7   1.2    3.1   3.2
Tanabe Sustec NF210 xA    1.3   1.0    2.8   2.2
Tanabe Sustec NF210 xB    1.7   1.2    2.1   2.5
Tein H-Tech xA            1.1   1.1    2.3   3.3
Tein H-Tech xB            1.1   0.9    2.3   3.3
Tein S-Tech xA            1.7   1.7    2.6   3.2
Tein S-Tech xB            1.7   1.5    2.6   3.2