Shimano Dura Ace Di2 ST-R9270 + BR-R9270 Hydraulic Disc Brake - 2x12-speed + Flat Mount - Set FW

Dura 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-Élysées.

The electronic Di2 parts rely on Wireless technology where it matters to make shifting even faster and more reliable. Smooth shifting is also the aim of the Hyperglide+ system, already known from the MTB segment, which is designed to bring out maximum performance and the full potential of every racer.

J-Kit (Easy Hose Joint System)

At brake systems with J-Kit hose joint the brake lever features an integrated olive what makes an easy brake hose installation and removal possible.

Shimano Dura Ace Di2 ST-R9270 STI brake/shift lever

CONTROLLED BRAKING. But the Dura Ace R9200 Dual Control levers are also impressive in terms of braking performance. With the help of an extended brake control range, the Servowave technology ensures excellent dosing that offers optimum comfort and control even in challenging conditions. Of course, for individual adjustment, the levers feature the option of reach and free stroke adjustment.

Shimano Dura Ace BR-R9270 disc brake caliper

Its one-piece Mono-Body design not only makes the Shimano Dura Ace BR-R9270 brake caliper incredibly light, but also gives it outstanding stiffness values. At the same time, the Flatmount brake made from a single, cold-forged aluminium block proves that high performance is also possible with compact dimensions.

A 10 % increase in brake pad spacing also allows for a significant reduction in noise during braking. In addition, when the RT-MT900 brake disc rotor (sold separately) is used, its deformation-resistant design, even with increasing heat, helps to create an extremely quiet and smooth braking system.

To simplify maintenance, the hydraulic 2-piston brake caliper not only features the proven One-Way-Bleeding system, but also a separate arrangement of bleed nipple and opening screw. On the one hand, this minimises the risk of the bleed kit hose slipping off when opening or closing the system and, on the other hand, makes it unnecessary to dismantle the caliper from the frame for bleeding process.

If you need more detailed information about the single parts of the groupsets check the articles in the referring categories.

Material:

Weight (manufacturer's specs):

approx. 120 grams (front caliper)
approx. 110 grams (rear caliper)

Scope of supply:

• brake/shift lever incl. CR1632 battery (without EW-SD300 Di2 cable)
• brake caliper (for 160 mm brake discs) incl. L03A Resin Ice-Tech brake pads (without disc rotor)
• SM-BH90 brake hose (1000 mm front / 1700 mm rear)