Shimano BB-UN300 Bottom Bracket - English 68 x 122.5mm Spindle Square Taper JIS 50mm Chainline Rings-44/32/22 Super slim hub shell

Super slim hub shell

Shimano Saint BB71 BB80B BB80D Hollowtech II Bottom BracketsIncludes 3 x 2

254-280mm x 178-203mm

Lever features Servowave action technology which increases the lever output so that little lever movement is needed to bring the pads into contact with the rotor

Shimano BB-UN300 Bottom Bracket - English 68 x 122.5mm Spindle Square Taper JIS 50mm Chainline Rings-44/32/22 Super slim hub shellShimano BB UN300 Bottom Bracket English 68 x 122. 5mm Spindle Square Taper JIS 50mm Chainline. 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 122. 5 Defined Color Black