SUGINO BB3 Bottom Bracket

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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 ins tallation. 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. Show more