Go hard or go home
Join Date: Apr 2012
Location: Auckland, New Zealand
Bike: R6, GSX1400
Re: Ohlins fork and shock spring question
I agree thet oil level does firm it up at the lower end of the stroke but to stop it blowing through with .875 it would probably need to be hydraulic locking. We are running 165mm air gap in our 30's in the spare bike so not overly low.
The forks are good enough for the rider to hold lap records at four of the five tracks used for national competition over here (one he broke by 1.7 seconds). We run a modified C3 compression stack with an extra shim in to aid braking stability.
The 115 pound rider I mentioned was my main riders 14 year old brother who jumped on for his first time ever (above a 250 Ninja) and lapped within 4 seconds of the pace with 1.0's installed. They were a little stiff for him but I'll probably only drop them to .95 next time.
As I've said in previous threads spring rate is relative. You can't say for a particular rider that a spring is too soft or heavy without trying it. Rider weight, swingarm length, valving, riding style all comes into it. I have worked with Ohlins, WP and Showa at home, up in Japan and Australia so I'd like to think I don't blow smoke up peoples nether regions.
The things I noted from this guys original post is the forks feel ok but it sounds like their blowing through the stroke under braking. Oil level would be one thing I look at but I would probably try springs first unless the oil was horrendously low. Some people making an unusual choice of running a high oil level as well which effectively creates an amount of hydraulic locking and works against what the valving is trying to do.