Some of my friends and I decided to attempt to set sag on my ZX today and it turns out I'm a bit heavy for the rear shock spring 226lbs 6'1". After turning the adjuster all the way down I was still setting in the 40-45mm range. Front came in ok although I'm sure real close to maxed preload. The bike rides immensely better but I'm trying to explore options on getting the rear closer to 30mm. Only option I have found so far is replacing the whole shock unit with an Ohlins but thats $$. I can't seem to find any manufactures that list a replacement spring for the 2013 ZX6R. Anyone have suggestions?
I believe the springs for the 10-12 should be the same as for the '13.... use this calculator to see what you would have OEM on a 10-12, and what it says you should have given your weight. Should be the same result, for a '13 as well I'd think.
Says I need 11.64 kg/mm. Just so happens thats the stiffest they offer. Factory is 9.2 kg/mm for the 10-12. I'll have to see if I can verify that the 10-12 is the same and if so I have my answer. Thanks guys!
Call Traxxion Dynamics they will be able to hook you up with new springs. Do the front at the same time to get the right balance. talk with them about the damping too. That much stiffer spring might exceed the stock valvings ability to damp it.
As mentioned, check out both sites. They both have charts on your spring choice availability. I am surprised that the front is close and not the rear. Good luck
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