Sugino MB-608 bottom bracket
This is the same bottom bracket included with Sugino 75 DD2 cranksets.
The MB-608 bottom bracket series features advanced seal design to protect bearings against water and dust, and offers excellent rotation performance for smoother pedal strokes. Service and maintenance of the bearing are not required.
Also compatible with any outboard bearing crankset having a hollow 24mm spindle like the Andel Deluxe.