Just changing the spring rate on my bike at present. the forks have had a fresh rebuild approx 4 hours ago with new seals, oils etc. Can I get away without changing the oil in the valve body for now? or will I have lost some out of them pulling th forks apart again? Just wondering as when you bleed them, they stay contained in there, so hoping I can get away without changing them, and only new oil in the outer chamber where the spring sits.