Shimano Dura Ace BR-R9270 Hydraulic Disc Brake Caliper - Flat Mount - RW FW set front and back 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. 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 Material: brake caliper: aluminium (anodized) pistons: resin Compatibility: STI lever: ST-R9270, ST-R9180, ST-R8170 sub brake lever: BL-RX812 brake disc: RT-MT900 brake pad: K03Ti Resin, L03A Resin, K04Ti Metal, L04C Metal brake hose: SM-BH90-J-SSR, SM-BH90-JK-SSR Weight (manufacturer's specs): approx. 120 g (front) approx. 110 g (rear) Scope of supply: brake caliper incl. L03A Resin Ice-Tech brake pads (without disc rotor and brake hose) front / for 140/160 mm brake discs: incl. adapter rear / for 160 mm brake discs: incl. fixing bolt (25 mm mount thickness) https://www.icebikeheaven.com/shimano-dura-ace-br-r9270-hydraulic-disc-brake-caliper-flat-mount-fw Buy from Us! 100% POSITIVE FEEDBACK 100% Warranty & After Sale Service 100% PARCEL ARRIVAL GUARANTEED 100% x hidden charges 7 days size exchange 7 days 100% Guarantee back Prompt response Registered SSM company- Icebikeheaven 10 Years of experience