Shimano Dura Ace Di2 ST-R9270 + BR-R9270 Hydraulic Disc Brake - 2x12-speedDura Ace R9200 Never Compromise The Science of Speed. Speed was the mainspring in the development of this 12 speed road bike series of a new generation. Several years of research produced those innovations that make the Shimano Dura Ace R9200 even faster. Every component has been revised, refined and optimised to enable the decisive seconds of advantage whether as a breakaway from the peloton or in the finish sprint on the Champs lyses. The electronic

NUMBER OF VENTS 25

It has a 5-bolt mount and a bolt circle diameter of 130 mm

): 28c• Rim Size: 20

Special gear tooth profile for improved chain retention

Chain Stay Angle : 61-66

Reliable electric system

• Material: steel

These are perfect for riding around campus

The XT2® liner is antimicrobial and manages odor while wicking moisture away from the head

Gear display positioned below the handlebar

Average weight       :  323g (11-34T) 343g (11-36T)

The Shimano RT-CL800 Disc Brake Rotor is designed for riders who demand the highest levels of performance