D20 Spanish Bottom Bracket 19mm Black
D20 Spanish sized (37mm) sealed Bottom Bracket frame for a 19mm crank axle.
Includes two bearings, two bearings covers, centre spacer and 4 crank spacers.
These bearings also fit in the Profile External/Outboard Bottom brackets as a good refresh.
For frames with a 37mm BB shell, Fly Bikes, etc.