NEW Shimano BB-UN300 Bottom Bracket - English 73 x 123mm Spindle Square Taper JIS type_road-bikes Fast Black aluminum upper tubes

Fast Black aluminum upper tubes

Six-point hook and loop attachment can be placed in a multitude of locations

The Lazer Comfort Buckle connects under the ear to prevent chin pinches when fastening the strap

with the single click shifter option designed for E-MTB use

NEW Shimano BB-UN300 Bottom Bracket - English 73 x 123mm Spindle Square Taper JIS type_road-bikes Fast Black aluminum upper tubesShimano BB UN300 Square Spindle Bottom Brackets. Fits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle BB Shell Width (mm): 73 BB Frame Interface: English Bottom Bracket Shell I. D.: 1. 37 Defined Color: Black Spindle Interface Type: Square Taper JIS Spindle Length: 123