Rear Shock Mod

Did some cross referencing and a 2004 drz400 is about .5 inch longer than the stock shock

It was real easy to mount

installed a 7kg spring and preloaded about 1.5 inches.

Need to remove the  stock tool holder/ tool holder tab off the frame

Need to drill out the upper mount threads on the frame and run a slightly longer bolt the opposite direction with a nut

The lower clevis has no threads , so i ran a longer bolt with a thin locknut

The valving seems o.k. i left the stock compression setting but i increased the rebound 4 extra clicks

This took me about 1 hour to figure out and install

Bike has heaps of travel. i'm 6' tall with 34" inseam and i cant touch flat footed with both feet.

DRZ400 shock on ebay with a 475# eibach spring

Not an Ohlins but cheap and adjustable

$95

credit: ItsaTDM

original is showa spring is too soft.
klx650c's original is 7.4 KG
installed this husky TE610 bein, showa
1995 Showa SA-1 GH03.

i need spring in the range 8,5 to 10 kg (depends on the driver weight).

this one fits, but never driven it, can not find a correct spring for it on the klx650C.
Problem is the dimensions of the spring, and all the enduro bikes have a different link system and they needs springs up to 6,5 kg max.






credit: MyWay

installed the DRZ rear shock with the 475# spring.

total cost:
DRZ shock WITH a gold valve $35 on ebay
Hypercoils Spring $55 online
DRZ shock rebuild with new seal head and all new 'soft' parts $100

modifications required:
cut off the toolbox mounting bracket, smooth frame, and paint (10 min)
cut DRZ lower shock mounting bolt/nut shorter (3 min - on bike)

I was able to swap the rear shocks in/out with the swing-arm and air box intact. Just unbolted the shock and linkage. Took probably 2-hours tops with hand tools and an angle grinder... including beer breaks.

End result?

Well - for the first time EVER my KLX has a proper static AND race sag... which is a big deal in the handling department.

Problem - well I had to bottom out the preload adjustment to get there, which is more of a problem with spring LENGTH rather than spring rate. If I were to do it again I would purchase a 12"x2.5" spring rather than a 10"x2.5" spring - or at least add a 1" spring spacer. Also given how most of my time on the bike involves luggage or two-up... a 500# spring may have been wiser.

But I think it'll work out peachy. This rear shock has high AND low speed compression adjustment... not even my KTM enduro bike has that! I'm going to do some research on how to utilize the high-speed adjustment!

credit: turbonotch