Shimano ES300 68 x 121mm Octalink V2 Spline English Bottom Bracket ModelNumber=31711 7 Specialized Lower Mount External

7 Specialized Lower Mount External Adjustments Low Speed Compression Damping External Adjustments Rebound Damping Positive Spring Air Eye to eye length (mm) 197 Eye to eye length (ins) 7

Fits most rear-mount bike racks

Tooth profile is compatible with both Shimano and SRAM chains in both 11 and 12 speed

99mm Interface DUB Pedals Thread 9/16 Drivetrain Spacing Road Crankset Material Carbon BB Inclusion No Primary Color Black

1 Flat Protection Sidewall ISO Width (mm) 53 ISO Diameter 622 / Road / 29"

Shimano ES300 68 x 121mm Octalink V2 Spline English Bottom Bracket ModelNumber=31711 7 Specialized Lower Mount ExternalShimano ES300 68 x 121mm Octalink V2 Spline English Bottom Bracket. Shimano BB ES300 Octalink V2 Bottom BracketsFits Shimano Octalink V2 Spline Cranksets Crankarm fixing bolts not included TECH SPECS Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 68 Weight 270 Spindle Interface Type Shimano Octalink V2 Spindle Length 121 Defined Color Gray