High-end classic XTR- and Dura-Ace-level UN90 bottom bracket. Sealed bearings, buttery smooth, with a hollow spindle. Light weight and durable.

Brand new and has never been installed. Minimal storage wear. See photos, which are part of the description. Perfect for a period-correct restoration or a neo-retro build.

Spindle length: 113

Shell: 68mm

Square taper JIS

~ 250g