Feature

●Shimano BB-UN300 Bottom Bracket British Thread 68-122.5mm (LL123) - for Chain Box
●SHIMANO
●CYCLING EQUIPMENT
●EBBUN300KB23XW

Description

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From the manufacturer

Shimano BBUN301 Mens Bottom Bracket, Black, 68/122.5 mm

Shimano bottom bracket with thread, Hollowtech II, 68/73 mm housing width

The Shimano Deore bottom bracket delivers high drive efficiency thanks to improved seal and rotation.