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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Progressive Suspension Fork Springs
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[QUOTE="glad2ride, post: 1380399, member: 62076"] I think a Race Tech 3949 in .44 Kg/mm rate would be OK for you. If you want to try .01 Kg/mm lighter or stiffer, go with an Eibach 989 model series spring. They are available in .37 Kg/mm - .47 Kg/mm rates, by .02's (.37, .39, .41, .43, .45 and .47 Kg/mm). Race Tech makes the 3949 in rates from .36 - .46 Kg/mm rates by .02's (.36, .38, .40, .42, .44 and .46 KG/mm). Race Tech springs are 487mm (13mm spacer needed). Eibach springs are 486mm (14mm spacer needed). Both brans of springs come with packs of washers so you can set the preload you want. The spacers (PVC pipe sections, or go all out with some 6160 aluminum solid rods drilled out to spec) would go on top of the springs. It is my understanding that forks in the last 20 years are pretty much all USD and come with a certain length spring that doesn't require any spacers (unless amount of preload is to be changed for additional preload). If you go with the custom Eibach springs, could you please take a picture of the installer's face when he gets the spring stuck on the stock size inner spring guide? :yikes: :rotfl: Ask them how many sets of aftermarket springs they have installed in 1991 - 1994 KDX250 forks. ;) Heck. Just ask them how many sets of 1991 - 1994 KDX250 forks they have worked on period. ;) Good luck with it, no matter how you go. :cool: [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Progressive Suspension Fork Springs
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