SHIMANO BB-UN300-E E-Type Bottom Bracket - 68 x 122.5mm - BSA - Square Taper Compatio_Enriched Oil: Shimano Mineral

Oil: Shimano Mineral

Also for various charging tasks using a charger

Weather-resistant softshell fabric on the outside defends against wind and water

Designed to carry two bottles or accessories off of one B-RAD base

The new shape of the end caps facilitates disassembly and thus speeds up handling requiring disassembly

SHIMANO BB-UN300-E E-Type Bottom Bracket - 68 x 122.5mm - BSA - Square Taper Compatio_Enriched Oil: Shimano MineralSHIMANO Square Type Bottom Bracket MTB Standard Structure Square Type Bottom Bracket SHIMANO quality performance cartridge bearing square bottom bracket Better chainline stability with chain line stabilizer 3 structures available Standard, E type, chain case options Adapter material: Aluminum