not a bad idea to change fluids

On an older motorcycle I have, I noticed that it was getting harder and harder to push around. Odd, so I checked wheel rotation and the front was dragging a bit. Turns out the caliper pistons were not releasing so well. Disassemble the calipers and noticed there was contamination in the caliper piston area, thus it couldn't move freely. Could have been a really bad experience. So I'll be flushing the brake fluid on the xfire as well as replacing the engine coolant. Brake fluid attracts moisture also, so refreshing it is a good idea.