The 465 Series Progressive Shock represents state of the art high pressure gas monotube shock design. It utilizes a large 46mm bore and deflective disc piston for precise damping. The beefy 16mm hard chrome shaft rides on custom viton seals for low friction and leak free life. This 465 is custom tuned for the KLR650 from the damping and spring rate all the way down to the jounce bumper.
Stock and short (1" lower) versions available.
Spring 1159-20B is used on the KLR shock with the threaded preload adjuster Rate 500/560 Length 9" I.D. 2.35" O.D. 3.32"
Everything will work just fine.
The Progressive spring will handle you if you are between 170 amd 300 pounds.
I am not sure what you mean by modify. The triple clamps will need to be reset.
The shock bolt is a different diameter, from the 87-07 to the 08+ KLR's. Our shocks are the same price on both years $379.95, but yes you are correct they are more readily available but we do not suggest crossing the shocks from one bike to the other. You will get alot more wear on the inside of that eye bolt.
The Progressive 465 1" lower is a very easy install on the KLR. The nice thing about the 465 series is that they are virtually trouble free, well built and dependable. We have ran them on KLR's and V Strom's with great success..