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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
spring/preload...not your average question
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[QUOTE="MACE, post: 307693, member: 16716"] What is the tube diameter and oil height for the Kaydex? I have a program that will estimate the effects of rate, preload and oil height on total wheel rate. If you take oil level (the air spring) out of the equation, you will find that preload ONLY ALTERS THE STEADY STATE RIDE HEIGHT. The next mm of travel from steady state will be at whatever rate the spring geometry defines. If the spring is softer the force on the spring is less and vice-verse. Where the higher preloaded spring will feel stiffer is if the wheel drops into a depression (like a whoop) and extends beyond the steady state length. The spring extends as far as it can - but the preload makes it act like it already has extra load on it so the first several mm of travel may well have more force with the soft spring / heavy preload. [b]Bottom line, soft spring / heavy preload will jolt the bars [u]less[/u] when you run over a root. Soft spring / heavy preload will jolt the bars [u]more[/u]in whoops or wheelying over puddle.[/b] These are my observations. Personally I run soft springs (for my weight) and heavy preload. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
spring/preload...not your average question
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