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

Tubelss 2PLY Casing

Fast Rolling Cross Country Directional Tread Design

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

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

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