Shimano Deore SM-BB52 Hollowtech 2

Specifications

• Model: SM-BB52 (68/73 mm), SM-BB52-D (83 mm)
• BB Type: Hollowtech II
• Thread Type: BSA
• Spindle Interface: Shimano Hollowtech II (24 mm diameter)
• Bottom Bracket Shell Width: 68 mm, 73 mm, or 83 mm
• Bottom Bracket Shell I.D.: 1.37 inches
• Weight: Approximately 73 g (68/73 mm version)
• Material: Steel bearings with composite cups