Flawless quality for a classic loose-bearing Bottom Bracket. Favoured by many of the pro Keirin Track riders, this is one of very few NJS certified Bottom Brackets available. Although the bearings are loose, with care this BB will give you speed for life.
Super Lap NJS BB's are superior to the standard version as they are treated with Sugino's electrochemical dip/bead blasted treatment making them the strongest Bottom Bracket ever produced!
BSA thread, 68mm shell and 109mm ISO taper.