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i got a 04 yzf450 that i need fork springs for sense i cut the ones in it for ice riding.

im 140 pounds and am going to be riding mostly trails and some tracks and i would say im a top c class rider when i tracks.

so what fork springs should i get and where should i get them from?

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Race Tech

Type of Riding: Motocross

Rider Weight: 140 lbs


Recommended Fork Spring Rate: 0.434 kg/mm (use closest available)

Stock Fork Spring Rate: .460 kg/mm (stock)


Recommended Rear Shock Spring Rate: 5.14 kg/mm (use closest available)

Stock Shock Spring Rate: 5.3 kg/mm (stock)


Stock Spring Rates:

Fork: 0.45 kgmm

Shock: 5.3 kgmm

Recommended Spring Rates:

Fork: 0.41 kg/mm

Shock: 5.0 kg/mm



both sites have spring rate calculators that give you an idea of what you need..

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