I've reused bolts on other bikes. Never pulled them off of my XB. I'd say you could probably reuse then, BUT I've noticed some of those kinds of bolts on by 2003 are excessively tight, and I know if I tried to pull them all there's a good chance I might need to replace one or two from the heads getting a little twisted. That's what happened when I tried to pull my front brake caliper the first time. Give it a shot but do it when you have a few days to spare incase you need to buy some new ones.