Fork Oils

cbx6ss · Post by **cbx6ss** » Mon Dec 05, 2005 8:29 pm

Any thoughts on fork oil weights? ATF? What is the weight of ATF?

Thank you.

/r

Brad

Terry · Post by **Terry** » Mon Dec 05, 2005 8:52 pm

I run 20w in both the Z and C models and they also have progressive fork springs and braces. I've heard that ATF is between 2.5w-5w and all the way up to 10w so I'm not sure.

fasterspider · Post by **fasterspider** » Tue Dec 06, 2005 12:22 am

ATF is bad for the seals and not the correct weight for the job.

I know what it says in the book, but that was 25 years ago and things have come to light since then.

Use Fork oil, that is why they make it.

Mike Barone #123 · Post by **Mike Barone #123** » Tue Dec 06, 2005 6:56 am

When my early model was stock I ran half way between spec weight and next weight avail and used synthetic fork oil.

Long time ago but I think the spec might have been 5wt so I blended half 5 and half 10 to get 7.5 and it worked out good.

Some of this depends your weight...being heavy I stuck to a modest fork oil weight increase. I tried 15wt one time and results were as if the forks had no movement at all....brutal ride.

Mike