This BB came out of 1981 Lotus Odyssey I picked up off a scrap pile. There appears to be a center weight held to spindle with 2 set screws, and I was wondering what the idea is behind it? I didn't move it because I thought it was aligned to allow the longer drive side. Are the needle bearings replaceable or shouldn't I bother? I cleaned, re-greased, re-installed, cranks back on, and they spin pretty smoothly. Also, since there's no lock ring involved is there a special procedure for installing it properly? Any feedback appreciated!