SUGINO BB3 Bottom Bracket

The SUGINO BB3 Bottom Bracket is a square tapered bottom bracket designed by Sugino for its RD48 cranksets.

It is compatible with SHIMANO spindles and UN74 tool can be used for installation.

• Shell width 68mm.
• Spindle Interface Type: Square Tapered JIS.
• Bottom Bracket Shell I.D.: 1.37.
• Bearing Type: Cartridge with tapered spindle.
• Spindle Length: 103mm.
• Thread Type: English.
• Weight: 282g.