Shimano Ultegra BB72-41B Road Bottom Bracket
BB-RS500 Bottom Bracket
• The only difference between the Road and MTB versions is
the dimension of the inner sleeve between the two cups
• For use on BB86/92 bottom bracket shells
• Compatible with 24mm spindle Hollowtech II cranksets
• BB/Frame Interface: BB86/92
• Spindle Interface Type: Hollowtech II
• BB Shell Width: 86mm
• BB Shell I.D.: 41mm
• Color: Black
• Manufacturer: Shimano
• Manufacturer part number: ISMBB7241B
• 689228122567
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and bottom bracket replacement tools!