Shimano Dura-Ace CN-HG901 11 Speed Chain Echelon 11-30: 11-12-13-14-15-17-19-21-24-27-30

11-30: 11-12-13-14-15-17-19-21-24-27-30

As manufacturers begin to develop frames and fork designs that take advantage of the aerodynamic gains of direct mount brakes

Combinations: 39/53 - 36/52 - 34/50

The 100% natural constituents include Melaleuca Alternifolia (Australian Tea Tree) oil which gives antiseptic and aromatic qualities

Tooth: 34

Shimano Dura-Ace CN-HG901 11 Speed Chain Echelon 11-30: 11-12-13-14-15-17-19-21-24-27-30The Shimano Dura Ace CN HG901 11 Speed Chain receives a complete SIL TEC treatment on its plates and rollers for increased durability and efficiency. Its asymmetric design ensures smooth front and rear shifts while reducing drivetrain noise. Compatible with 11 speed drivetrains, the HG901 11 is also rated for e bike use. Specifications Rear drive: smooth driving without noise Front drive: preserves chain security at cross chainline Front & Rear Shift: