Shimano BB-UN300 Bottom Bracket - English 68 x 117.5mm Spindle Square Taper JIS Model=R2 Disc Rotor Wool stays cooler in the

Wool stays cooler in the heat because of the construction of the mesh

Unscented and great for all skin types

low-profile

1-bike capacity holds up to 67 lbs wheelbases up to 53” and tires up to 5"

Shimano BB-UN300 Bottom Bracket - English 68 x 117.5mm Spindle Square Taper JIS Model=R2 Disc Rotor Wool stays cooler in theShimano BB UN300 Bottom Bracket English 68 x 117. 5mm 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) 68 Spindle Interface Type Square Taper JIS Spindle Length 117. 5 Defined Color Black