SHIMANO BB-UN300-E E-Type Bottom Bracket - 68 x 122.5mm - BSA - Square Taper Compatio_Enriched compared to previous GP5000 versions

compared to previous GP5000 versions

The welded construction of the XR 391 and the bead blasted

Oil: Shimano Mineral

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

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

SHIMANO BB-UN300-E E-Type Bottom Bracket - 68 x 122.5mm - BSA - Square Taper Compatio_Enriched compared to previous GP5000 versionsSHIMANO 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