It is known that the '00 &'01 S2Ks have the following:


Front bar (diameter/ thickness in mm): 28.2 / 5.0
Rear bar (diameter/ thickness in mm): 27.2 / 5.3
Front spring rate:3.9kg/mm (218 in/lbs )
Rear spring rate:5.2kg/mm (291 in/lbs)





It is also known that the '02 S2Ks have the following:

Front bar (diameter/ thickness in mm): 26.5 / 4.5
Rear bar (diameter/ thickness in mm): 27.2 / 4.5
Stiffer springs and new shock valving.

Is anyone aware of the spring rates for the '02 ? This would be a very useful piece of information.


Pierre

 

I haven't seen any definitive numbers, and the only thing reputable Gregg Lee posted awhile back.....

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As far as I can tell all mounts, and coil count and diameter of springs are the same.

Based on a field measurement in an autocross grid reaching behind the tire to measure the 2002 springs with a dial caliper, here are the differences, 2000 first, 2002 second, rate change third.

front spring wire diameter inches 0.455, 0.467, +11%

rear spring wire diameter 0.484, 0.458, -20%

front bar diameter 1.11, 1.01, -29% (bar rate change assumes same wall thickness)

rear bar no change

I have no data on shocks (dampers), other than Koni sportshocks adjustable are now available for $600 per set.

 

From what I understand, the rear bar is different... it's got the same OD, but a thinner wall. They definitely have a different part number, I've seen the parts book.

 

Thank you gentlemen for the input.

I understand s2k2fast4me's assement for the front rate as being 4.3 kg/mm.

Anyone else care to speculate on the spring rates?




Pierre