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FJR Motorcycle Forums
Technical & Mechanical Problems
Seeking Help Adjusting Suspension
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<blockquote data-quote="HaulinAshe" data-source="post: 322851" data-attributes="member: 1875"><p>The biggest problem with progressive rate springs is nobody makes a progressive rate valve. Most suspension valves are near linear in response. When you combine a progressive rate spring with a linear dampening valve system, the result is "detuned" suspension at the extremes of travel.</p><p></p><p>Most modern suspension continuously struggles to be as linear in both spring and valving as possible. It's the Holy Grahl of suspension engineering.</p><p></p><p>Europeans are still fond of progressive rate springs in their dirt bikes. Mostly because they want something very soft to eat up the pounding from cross country, off-road riding.</p><p></p><p>Another trade-off to consider with progressive rate springs, is the typical loss in total travel. They tend to settle much deeper for the same given static weight. So you typically lose an appreciable percentage of available travel before ever shifting into first gear.</p></blockquote><p></p>
[QUOTE="HaulinAshe, post: 322851, member: 1875"] The biggest problem with progressive rate springs is nobody makes a progressive rate valve. Most suspension valves are near linear in response. When you combine a progressive rate spring with a linear dampening valve system, the result is "detuned" suspension at the extremes of travel. Most modern suspension continuously struggles to be as linear in both spring and valving as possible. It's the Holy Grahl of suspension engineering. Europeans are still fond of progressive rate springs in their dirt bikes. Mostly because they want something very soft to eat up the pounding from cross country, off-road riding. Another trade-off to consider with progressive rate springs, is the typical loss in total travel. They tend to settle much deeper for the same given static weight. So you typically lose an appreciable percentage of available travel before ever shifting into first gear. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Seeking Help Adjusting Suspension
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