SHIMANO BB-UN300-E E-Type Bottom Bracket - 68 x 122.5mm - BSA - Square Taper Compatio_Enriched Tubelss 2PLY Casing

Tubelss 2PLY Casing

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

Also for various charging tasks using a charger

Fast Rolling Cross Country Directional Tread Design

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 Tubelss 2PLY CasingSHIMANO 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