Shimano BB-UN300 Bottom Bracket - English 73 x 113mm Spindle Square Taper JIS Model=KTV Drive Ramped center knobs minimize rolling

Ramped center knobs minimize rolling resistance while substantially spaced outer knobs ensure footing in loose terrain

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Color Black/Tan Flat Protection Tread and Sidewall TPI 60 Weight 555 Defined Color Black ISO Width (mm) 47 ISO Diameter 584 / 650b / 27

Color Black Weight 32 Thread Pitch 1

Shimano BB-UN300 Bottom Bracket - English 73 x 113mm Spindle Square Taper JIS Model=KTV Drive Ramped center knobs minimize rollingShimano BB UN300 Bottom Bracket English 73 x 113mm Spindle Square Taper JIS. Shimano BB UN300 Square Spindle Bottom BracketsFits JIS square taper cranksets Crankarm fixing bolts sold separately Hollow spindle TECH SPECS Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 73 Spindle Interface Type Square Taper JIS Spindle Length 113 Defined Color Black