Gentleman,

I have developed a thunk in my TLR 250F forks when they extend. I'm guessing the rebound dampers are on their way out. Does anyone know if the rebound damper is a spring or some time of an elastomeric bumper? Do you know a part number and where I might obtain a set?

Cheers!

Try a little more oil .

Classic symptom of insufficient fork oil volume as Mr.B40 has said.

Thanks Gents,

I was thinking low oil whilst riding it this past weekend. I don't have leaking fork seals so low oil didn't seem right. Would old oil of low viscosity behave similarly?

Ambient temp will also be a factor. ATF is approx 7-5 weight. Cheap for forks if you are just trying to flush them out.

It was unseasonably hot this past weekend and I believe I have 5 weight in the forks. An oil change is in order!

use Honda line 5wt/..flush with mineral spirts.

Fresh oil corrected the problem.

Thanks everyone.