STANDARD BOTTOM BRACKET, BB-UN300, SPINDLE: SQUARE TYPE, SHELL: BSA 68MM, SPINDLE: MM110, W/O FIXING BOLT

Standard Bottom Bracket BB-UN300 with Square Type Spindle by Components

Introducing the BB-UN300 Standard Bottom Bracket by Components, designed for exceptional cycling performance. Our bottom bracket features a JIS square-taper crankset compatibility and is designed with a BSA 68mm shell, providing a firm and secure fit for your bicycle.

Its 110mm spindle delivers enhanced efficiency, while the hollow spindle design reduces weight, making your rides smoother and more comfortable. Please note that crankarm fixing bolts are sold separately.

• Compatible with JIS square-taper cranksets
• BSA 68mm shell for a sturdy fit
• 110mm spindle for improved efficiency
• Hollow spindle design for reduced weight