front suspension travel

On doing a front wheel noise inspection ,turned out it was sand on the brake pads from riding through road construction that was making a grinding noise. I decided to measure  the distance of travel compression.I measured 3 " of visible travel .The manual says I should have 4" of travel .Is this normal? would Hyper pro spring give my swing a longer traveling stroke?

Hyper Pros would not reduce the suspension travel, but would sure make it better.

Tim

Try changing you fork oil bud, it like all oils deteriorates with age.