Shimano ES300 73 x 126mm Octalink V2 Spline English Bottom Bracket MFG Part Number-C-446 S3 and S1: “Narrow” intertrochanteric

S3 and S1: “Narrow” intertrochanteric distance and high pelvic rotation (Flow and SuperFlow saddles)

Space to mount a chest mount action cam

The Race Face Atlas crank is the burliest alloy CINCH offering

Incline simulation up to 16%

Shimano ES300 73 x 126mm Octalink V2 Spline English Bottom Bracket MFG Part Number-C-446 S3 and S1: “Narrow” intertrochantericShimano BB ES300 Octalink V2 Bottom BracketsFits Shimano Octalink V2 Spline Cranksets Crankarm fixing bolts not included Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 73 Weight 270 Spindle Interface Type Shimano Octalink V2 Spindle Length 126 Defined Color Black Size 73Mm X 126Mm Interface English