Shimano BB-UN300 Bottom Bracket – English, 68 x 122.5mm Spindle, Square Taper JIS, 50mm Chainline

Shimano BB-UN300 Square Spindle Bottom Brackets

• Fits JIS square-taper cranksets
• Crankarm fixing bolts sold separately
• Hollow spindle
• 50mm chainline

• Spindle Interface Type: Square Taper JIS
• BB Shell Width (mm): 68
• Bottom Bracket Shell I.D.: 1.37
• Spindle Length: 122.5
• Defined Color: Black
• BB/Frame Interface: English