I just had my shocks rebuild by pioneer performance. Bruce is very knowledgeable and would be an easy phone call to answer your questions. I have a 2001 SXR 700, I am 6 foot 235. This is what I did to help with my knees. You can buy seats to raise up, but I don't have all that cash to dump so here is what i did. I bought a 6 inch handle bar riser form a guy on here, he is out of new york, That was $35. you can go 3 inches with just rerouting the cables but I bought new cables of ebay for $35. I made a 3 1/2 inch seat riser that really helped reduce the stress on my knees. I got the idea from here. It took me about 3 hours but was not bad at all. Finally I just got my shocks from Pioneer, so I am hoping that makes it a perfect fit. which for all 4 revalved/rebuilt it was only like $180. That is cheaper than my local dealer minus shipping.