This weekend I have a cold, its raining and I don't have to work for a change, so I had to do something to keep myself busy! As a big plus, its actually WARM enough (surprising since this is supposed to be Florida!) to work on this thing, oh, and I was told that this couldn't be done... so here it is:
Tired of the rear shock being too bouncy for all of the 6'3" 250lbs of meat that I am, (much heavier with gear and other travel-related equipment) plus and not having adjustable bump or rebound left me a little frustrated.
I had the preload adjusted to the max and the thing still sagged a little too much. So I've known I wanted to do something to upgrade the rear, and the SV650 shock that some people have recommended really didn't leave me happy. I have an SV650 and its shock isn't adjustable for anything other than preload either.
I know that the 250 isn't meant to be a performance bike, but with a little work, who says it can't be?
I put the triple stand on the front and supported the underside of the bike with a floor jack and some wood under the kickstand to ensure that the bike's weight was NOT on the back wheel. Then popped off the caps on the side of the frame and removed the top shock bolt, then removed the bottom and pulled the shock downwards and out. Then I dug in the parts bins for a suitable replacement.
From left to right: 08-10 250R, 04-05 10R, 06-07 ZX6R
The 10R shock and the ZX6 shock measure the same length, but they are both about 1" longer than the 250R shock. This will raise the rear some 2 inches or so. We'll see how that turns out, and if I don't like it I'll get a set of lowering links.
The other dimensions such as the inside width of the forked bottom and the eyehole width at the top are identical on all, but the 250R shock has bigger bolt holes on top and bottom. This should be easy to ream out to the right size.
ZX6R on left, 250R on right:
The 10R shock also quite obviously has a different reservior from the ZX6R and the 250R doesn't have one at all! There will be some work to make this fit in on my 250.
After poking around I decided the 10R shock will fit better on another one of my projects so I decided to keep that one for later.
The ZX6R shock is much larger in every way, the spring is bigger, its about 1" longer and required the bike to be disassembled to make sure I can get it situated into its new home.