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XR4 Suspension
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[QUOTE="placelast, post: 107696, member: 22683"] [b]XR4 Boingers OK 4U[/b] Go to the Race Tech site, [url]http://4.22.116.247:81/cgi-win/racetechv2.exe[/url] It say U need 15mm preload, but B 4warned: that's w/all of their other recommendations in place. >How can I tell if I have the right springs for my weight? I'm 200-205 Your fork springs R waaaayyyy off. They recommend 0.46kg/mm 4U. R yours stock or did the prev. owner(s) change them out? Either way, the .46s R 4U. The stock shock spring is right on. >How are the stock forks on a 98 XR400? Just fine 4 your type of riding, moreso once dialed-in. >I've seen fork for sale on ebay (like 99CR250 forks) than probably cost the same as a revalve/respring. Would they fit on my bike and would they be a big improvement? They would fit w/a moderate amount of work & $$, would perform much better (after revalving/respringing 4 this retrofit), but not unless you've reached the limits of the stock forks. I did just that to a DR350 (sim to an XR4), where I put an entire RMX front end & rear shock on. $1k later it was two or three notches better than the revalved/sprung stock suspension. I've heard of a few who have done it to an XR4. I do not recommend this route as it becomes expensive fast, moreover the XR (DR, etc.) frames R not gusseted/strengthened/designed to take the stress/loads of USD forks. Eg: the guy who bought it from me broke the steering stem in no time; it may be his habit to MX & leap it, & he weighed 50 lbs more than me. I do not know how the frame held up in all this. I do recommend having a shop service & revalve both ends (@ a minimum, springs on front - U can do that, & cahnge the oil/set the level). Baja Des., RT, & Scott's have XR experience, or better yet, Jeremy. Yes, it's expensive, but well worth it - best $ to spend on your XR by far. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
XR4 Suspension
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