Shimano Dura-Ace BR-R9270 Hydraulic Flat Mount Disc-Brake Caliper, Left Front

Shimano has designed the BR-R9270 flat-mount brake caliper for the Dura-Ace top road groupset in a one-piece Mono-Body construction. Compared to the Ultegra version, this saves over 20 grams of weight at the rear and front and increases the stiffness even more. The brake pads have more free space than in the previous model, which prevents grinding of the brake rotor and reduces noise. The braking power of the two plastic pistons is tuned for competition use. In addition, the BR-R9270 earns points with a simple bleed process thanks to One-Way Bleeding technology. The brake caliper is supplied with Ice-Tech resin pads, which ensure particularly good heat dissipation due to their cooling fins. However, you can also ride it with conventional pads.

Specifications:

Series: Dura-Ace R9270
Application: Road, Triathlon & Time Trial
Type: hydraulic, 2 pistons
Actuation: mineral oil
Hose: SM-BH90-JK-SSR (not included)

Technical Information - Caliper:

Caliper Mount: flat mount
Pistons: resin
Pads: L03A resin with cooling fins
Design: Mono-Body
Caliper Material: aluminum
Hose Connection: straight

Compatibility:

Brake Rotor: 140 mm, 160 mm (recommended: RT-MT900)
Pads: Standard and Ice-Tech brake pads
Recommended Brake Lever: ST-R9270, ST-R9180

Features:

- one-piece construction for maximum stiffness and lower weight
- 10 % larger brake pad spacing minimizes grinding of the brake rotor, less noise development
- braking performance optimally tuned for road use
- coherent appearance and easy tool access thanks to flat mount
- optimized heat dissipation with Ice-Tech
- simple bleeding process
- 2 pistons made of synthetic resin
- anodized
- steel bolts (4 mm)

Technology:

One-Way-Bleeding
One Way Bleeding is a technique used on the brake caliper that makes it easier to bleed the brake. The hose routing has been optimized so that no air bubbles remain in the brake caliper. In combination with the funnel, the brake can be bled cleanly and easily.

Manufacturer Numbers:

Front Flat Mount: I-BRR9270F6RF
Rear Flat Mount: I-BRR9270RDRF

Contents:

- 1 x Shimano Dura-Ace BR-R9270 brake caliper
- 1 x pair Shimano L03A brake pads
- 1 x disc brake adapter (front only, pre-mounted for 160 mm)
- 2 x type A caliper bolts (front)
- 2 x caliper bolts for 25 mm frame diameters (rear)