I ride a '99 ZR 500 that is stock in every which way (except for 144 studs). I want to boost my sled's performance in all the RPM ranges, especially the low and mid-ranges. Do any of you guys know of any good, reliable, trail-friendly, bog bore kits for my sled? Have any of you guys tried them? I do...

Do any of you guys out there have a ZR 500 with a speedwerx clutch kit? If so do any of your kits have both springs(drive and driven) made out of Titanium? How well do they work? What RPM do they kick in at? My stock sled engages at 4800 RPM. Also where can I find the best deals on these clutch kits?

I ride a stock '99 ZR 500. This year I was thinking about clutching it with a kit from Speedwerx. I was hoping I would be able to receive any feedback from those of you who have tried Speedwerx before. Also, when ordering a clutch kit from Speedwerx, do they ask you which weights you want or do they...