STANDARD BOTTOM BRACKET, BB-UN300, SPINDLE: SQUARE TYPE, SHELL: BSA 68MM, SPINDLE: XL118, W/O FIXING BOLT

Shimano BB-UN300 Standard Bottom Bracket - Square Type Spindle, BSA 68mm Shell, without Fixing Bolt

The Shimano BB-UN300 Standard Bottom Bracket is engineered for optimal cycling performance. This cartridge bottom bracket boasts a JIS-standard square-shank steel axle, designed to perfectly fit JIS-standard cranks. The sealed bearings ensure smooth, friction-free pedaling, enhancing your ride's efficiency and comfort. This product is specifically designed for frames with internally threaded bottom brackets that can accommodate Euro BSA/BSC-type bottom brackets.

With a housing diameter of 34.5mm and a choice of shaft length - 113mm or 118mm, this Shimano product ensures compatibility with a wide range of bicycles. The Euro cartridge type, BSA/BSC thread, and 68mm width further contribute to its adaptability and ease of installation. Despite these advanced features, the Shimano BB-UN300 Standard Bottom Bracket maintains a lightweight design, weighing only 290 grams.

• Brand: Shimano
• Type: Euro cartridge
• Housing Diameter: 34.5mm
• Shaft: Square JIS
• Shaft Length: 113 or 118mm
• Thread: BSA/BSC
• Width: 68mm
• Sealed Bearings: Yes
• Weight: 290g
• Additional: Sold with 2 axle screws