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 KMC Z510HX 1/2″ X 1/8″ OIL SLICK BICYC... Campagnolo 11-Speed Bicycle Chainring – FC-S... Sunlite 8spd Freewheel, 13-28t, Chrome Plated Revi... CDHPOWER Black BB Bottom Bracket Conversion Kit (A... Cycling Outdoor Recreation Parts & Components SHIMANO Sports & Outdoors