SHIMANO Splined Hollow Type Bicycle Bottom Bracket – BB-ES300 Review Posted by Pelicandy September 11, 2018 in Drivetrain Components BOTTOM BRACKET BB-ES300 SPLINED/HOLLOW-TYPE AXLE Original Shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity. Random Products Full Speed Ahead FSA Omega Steel Road Bicycle Chai... Wheels Manufacturing Pressfit 30 Bottom Bracket Th... SRAM X01 94BCD 1×11-Speed Chain Ring Review SHIMANO HG20 9 Speed Cassette Review Cycling Outdoor Recreation Parts & Components SHIMANO Sports & Outdoors