What size shock spring do I need?
What size shock spring do I need?
For example, if your shock stroke is 2″, your max spring free length is 130mm and your spring rate is 450lbs, you need a spring that is 2.25″ x 450Lbs x 125mm (if you don’t see a spring that has the exact stroke of your shock you can use a spring with a longer stroke, as long as the free length will fit).
How do you calculate rear shock spring rate?
You will need to determine your shock’s stroke in millimeters to find your optimal Spring Rate. This is often found on the bicycle manufacturers website, on the shocks packaging, or you can measure the “eye to eye” difference between the shock fully extended and fully compressed.
What spring rate do I need dirt bike?
This will depend in part on your size and in part on your riding style and preferences. Right out of the box your spring rates are usually set for someone of average size — this typically means 75 to 80 kilos or 165 to 176 pounds. If you are lighter or heavier, that spring rate won’t perform as well for you.
What does 8K spring rate mean?
8 kg/mm
When someone says “8K” they are shortening the metric measurement of the spring rate; in this case 8 kg/mm. What this means is that if you apply 8 kilograms of weight to the top of the spring it will compress 1mm. If you apply 500 lbs of weight to the top of the spring it will compress 1 inch.
Are 20k Springs stiff?
20/16 is twice as stiff all the way around.
How much air should I put in my Fox Float shock?
To achieve the best performance from your FOX suspension, adjust the air pressure to attain your proper sag setting. Sag is the amount your suspension compresses under your weight and riding gear. Sag range should be set to 25–30% of total shock travel.
What determines a coil springs stiffness?
The amount of coils on a spring also determines the stiffness of a spring. The less coils you have, the stiffer your spring will be. In the case of a torsion spring, less coils give you more torque but less travel. In the case of a compression spring, it is based on the pitch in between its coils.
What is Motorcycle spring rate?
Spring rate is measured in newtons per millimeter (N/mm), pounds per inch (lb./in.), or more commonly kilograms per millimeter (kg/mm). For example, a 0.85kg/mm spring will compress 1mm when a 0.85kg weight is placed on it. Put an 8.5kg weight on the same spring and it will compress 10mm.
How is the SAG of a shock spring determined?
Shock Sag (percentage of shock stroke): the standard formula uses the Fox Racing Shox-recommended 25% of shock stroke. A zero-preload spring rate is determined, then preload is applied to calculate the corresponding sag. Choose a sag appropriate to your riding style.
Can a modification to a Fox shock spring cause death?
WARNING: Modification or alteration of a FOX product can cause product failure resulting in SEVERE INJURY OR DEATH.
What kind of springs are used for DHX rear shocks?
SLS (Super Light Steel) springs are now available from FOX for DHX and VAN rear shocks. These SLS springs are a lighter weight steel spring option offered in addition to our standard steel springs.
How to calculate preload for rear shock spring?
If the spring is marked as in 600# x 1.63″ or 600# x 41 mm, calculate the available preload by spring stroke minus shock stroke. Caution! Be careful! Although you may be well within limits for avoiding coil binding, using excessive preload will overly stress the shock, leading to possible premature failure.
