Shimano BB-UN300-K Bottom Bracket - English 68 x 117.5mm Spindle Square Taper JIS For Chain Case MFPN=RD-140-647 Sporty design and high versatility

Sporty design and high versatility

promoting blood flow and preventing that numb feeling due to nerve pressure

DH (separate high/low compression)

teeth 20t color red

Shimano BB-UN300-K Bottom Bracket - English 68 x 117.5mm Spindle Square Taper JIS For Chain Case MFPN=RD-140-647 Sporty design and high versatilityShimano BB UN300 K Bottom Bracket English 68 x 117. 5mm Spindle Square Taper JIS For Chain Case. 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) 68 Spindle Interface Type Square Taper JIS Spindle Length 117. 5 Defined Color Black