Originally Posted by
HillRider
After all that time the grease may have dried out to the point it's not functional and riding the bike in that condition will quickly damage the bearings.
Colour me highly dubious.
A, I ran my bike for a couple of months once with no grease in hubs, BB or headset with no detectable damage.
2, even Shimano's infamous STI grease, even after ten years, would still serve to lube a cup and cone bearing. If it's enough to prevent corrosion, it's enough to lube the bearing enough to prevent damage.
I'd just make sure everything's goldilocks, and put air in the tyres, unless it's the sort of bike that warranted full TLC.