Shimano UN300 68 X 115mm D-H Bottom Bracket

Experience the pinnacle of cycling with the Shimano BB-UN300 Bottom Bracket. Crafted for riders who demand excellence, this square type bottom bracket delivers unbeatable quality and performance.

. Cartridge Bearing: Engineered with precision cartridge bearings, this bottom bracket ensures smooth and efficient pedalling, elevating your riding experience
. Chain Line Stabiliser: Enjoy enhanced chain-line stability, reducing chain-related issues and keeping your ride on track
. Versatile Structures: Choose from three available structures - Standard, E-type, and chain case options - to match your specific riding needs
. Crank Arm Fixing Bolts included

Technical Specifications
. Model No: BB-UN300
. Axle Length/Shell Width: 115mm D-H/68mm (BC1.37)
. Adapter Material: Aluminium