Shimano SM-BB52 Hollowtech Bottom Bracket

The SM-BB52 is a popular Shimano bottom bracket, which is used in countless cranks such as Alivio, Deore and ZEE. Its 24 mm Hollowtech II standard bearings deliver an optimal stiffness-to-weight ratio and rotational efficiency. The SM-BB52 BSA bottom bracket is available in a version for 68 and 73 mm shell width and in a version for 83 mm shell width.

Specifications:

Application:

All Mountain, City & Touring, Enduro, Downhill

Type:

BSA

Shell Width:

68 mm / 73 mm, 83 mm

Axle Diameter:

24 mm (Hollowtech II)

Technical Information:

Bearings:

steel

Bottom Bracket Cup Material:

aluminium

Bottom Bracket Centre Tube Material:

synthetic resin