Gen 1: 2004-2005 Hyperpro Progressive Rear Shock Absorber Spring - Kawasaki
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post #1 of 7 Old 11-16-2012, 02:46 PM Thread Starter
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Hyperpro Progressive Rear Shock Absorber Spring

Hyperpro Progressive Rear Shock Absorber Spring any one tryed one ???????????????????????????????????????
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post #2 of 7 Old 11-17-2012, 04:07 PM
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i havent but a good friend of mine has one set up and he rates it highly. sorry i cant say more

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post #3 of 7 Old 12-11-2012, 07:22 PM
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any other input on this seen this on ebay for a reasonable prive lol
hate the color though
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post #4 of 7 Old 12-18-2012, 03:09 AM
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Most suspension guru's don't like them. It makes the thing too progressive, which isn't really a good thing. The linkage takes care of that. Better to just get the correct rate spring for your weight etc....
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post #5 of 7 Old 06-10-2018, 06:52 PM
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Anyone else used these springs?
Anyone know the rate they start and go to?
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post #6 of 7 Old 06-10-2018, 07:59 PM
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Progressive rate springs don't belong on sport the forks or in the shock.
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post #7 of 7 Old 06-11-2018, 11:42 AM
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A more important question is WHY do you want a progressive rated spring? Progressive rated springs have their place (even on sport bikes) but are generally used in very specific situations and for very specific results. Any progressive rated spring can be hard to tune and will feel different in parts of the stroke. This can cause things like pump or wallow in the initial part of the stroke and then be possibly too stiff as the suspension moves further into the travel. Progressives can also make setting up damping difficult too.

As to the rate, they make a wide variety of rates, so it would be stamped on the spring what the rate starts at and then what it ends at.

If you're like the idea of a progressive rate spring, using a combination rate, preload and topout springs can imitate the same affect as a progressive rate spring without compromising other key parts of the bike's handling.

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