Shimano BB-UN300 (E-BBUN300C13X)

Low friction rotation improves pedalling feel, helping riders maintain cadence across longer or harder rides Workshop friendly dimensions support accurate installation, reducing creaks and preserving crank alignment 113mm / 73mm / BB-UN300 bottom bracket standard supports smooth crank rotation, stable bearing support and efficient power transfer Sealed bearing construction helps protect the interface from dirt, moisture and daily riding stress Eje Pedalier BSA 113mm/73mm compatibility simplifies service work when replacing worn units or refreshing a drivetrain setup

Low friction rotation improves pedalling feel, helping riders maintain cadence across longer or harder rides Workshop friendly dimensions support accurate installation, reducing creaks and preserving crank alignment 113mm / 73mm / BB-UN300 bottom bracket standard supports smooth crank rotation, stable bearing support and efficient power transfer Sealed bearing construction helps protect the interface from dirt, moisture and daily riding stress Eje Pedalier BSA 113mm/73mm compatibility simplifies service work when replacing worn units or refreshing a drivetrain setup

Low friction rotation improves pedalling feel, helping riders maintain cadence across longer or harder rides Workshop friendly dimensions support accurate installation, reducing creaks and preserving crank alignment 113mm / 73mm / BB-UN300 bottom bracket standard supports smooth crank rotation, stable bearing support and efficient power transfer Sealed bearing construction helps protect the interface from dirt, moisture and daily riding stress Eje Pedalier BSA 113mm/73mm compatibility simplifies service work when replacing worn units or refreshing a drivetrain setup

Shimano Bottom Bracket UN300 73 x 113mm Square Taper British Thread BB Genuine, Sporting Goods > Cycling > Bike Components & Parts > Bottom Brackets

Shimano BB-UN300 Square Taper Bottom Bracket, Sporting Goods > Cycling > Bike Components & Parts > Bottom Brackets

Shimano BB-UN300 bottom bracket British thread 73 - 113 mm, Sporting Goods > Cycling > Bike Components & Parts > Bottom Brackets

Shimano Bottom Bracket UN300 73 x 113mm Square Taper BB British Thread, Sporting Goods > Cycling > Bike Components & Parts > Bottom Brackets

Shimano UN300 Bottom Bracket Bike Cycle Bicycle BB Square Taper Sealed Cartridge, Sporting Goods > Cycling > Bike Components & Parts > Bottom Brackets

Shimano BB-UN300 bottom bracket British thread, 73 - 113 mm, Sporting Goods > Cycling > Bike Components & Parts > Bottom Brackets

Shimano BB-UN300 73x113mm Square Taper Bottom Bracket, Sporting Goods > Cycling > Bike Components & Parts > Bottom Brackets

Shimano Cycle Bicycle BB-UN300 Bottom Bracket British Thread Silver - 73-113 MM, Sporting Goods > Cycling > Bike Components & Parts > Bottom Brackets

Shimano Bicycle Cycle BB-UN300 Bottom Bracket British Thread Silver - 73-113 MM, Sporting Goods > Cycling > Bike Components & Parts > Bottom Brackets