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What do the shock spring numbers mean?

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I know the numbers reference the firmness, but a 76-250, for example. I understand the 76 equals 7.6Nm, but what is the 250? How come some are 260? Is that the length? Which straight rate spring should I have if I'm 200 lbs with gear? And in which length? Thanks

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the first number is the weight rating of the spring, the second number is the length of the spring unsprung. so a 76/250 would be a 7.6n/m that is 250 mm long.

different spring companies make different lengths. W.P. springs are generally 250 mm. you can put a 260mm on your bike, it doesnt really make a difference. you just wont have the same setup numbers if you use a longer spring.

for your last question we need to know what year/size/bike. the newer models have a different angle on the rear shock which change the rate needed.

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the new bikes come with a 260mm spring the older ones were 250mm but ya either will fit, as to what springs you need what bike do you have??

Mike

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Sorry, totally forgot to mention that. It's a 2002 400 EXC

I'll take a stab at it, I would say .46 for the fork and a 9.0 or there abouts on the shock.

Mike

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the new bikes come with a 260mm spring the older ones were 250mm but ya either will fit, as to what springs you need what bike do you have??

Mike

Are there any pros/cons to going with a longer vs shorter spring?

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Are there any pros/cons to going with a longer vs shorter spring?

none that I've ever heard.

Mike

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its conceivable that in some situations you could get the coils to bottom out and bind on each other, like on the higher/heavier springs. This is due to the larger diameter of the wire. I have not seen it, but others have talked about it on the net.

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