Shimano BB-UN300 Bottom Bracket BSA Square Taper 68 mm, 107 mm Black

Shimano BB-UN300 Square Spindle Bottom Brackets

• Fits JIS square-taper cranksets
• Crankarm fixing bolts sold separately
• Hollow spindle

• Bottom Bracket Shell I.D.: 1.37
• BB/Frame Interface: English
• BB Shell Width (mm): 68
• Spindle Interface Type: Square Taper JIS
• Spindle Length: 107
• Defined Color: Black