Shimano Dura-Ace BR-R9270 Brake Caliper with L03A Resin Pad

The Dura-Ace BR-R9270 Brake Caliper by Shimano - Maximum stiffness, low weight

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 R9200
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
Pads: L03A resin with cooling fins
Design: Mono-Body
Calliper Material: aluminium
Piston Material: resin
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, also compatible with ST-R9120, ST-R9170, ST-R8170, ST-R8020, ST-R8025, ST-R8070, ST-R7020, ST-R7025, ST-RX810, ST-RX810-LA, BL-RX810-L, ST-RX815, ST-RX600, BL-RX600-L, ST-RX400, ST-4720, ST-4725 and additional brake lever BL-RX812

Features:

- one-piece construction for maximum stiffness and lower weight
- 10 % larger brake pad spacing minimises 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
- optimised heat dissipation with Ice-Tech
- simple bleeding process
- 2 pistons made of synthetic resin
- anodised
- steel bolts (4 mm)

Technology:

One-Way-Bleeding
One Way Bleeding is a technique used on the brake calliper that makes it easier to bleed the brake. The hose routing has been optimised so that no air bubbles remain in the brake calliper. 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)

Order Together:

- FM to FM brake adapter SM-MA-R160 D/D for 160 mm brake rotor on 140 mm FM frame (for rear)

Optional Accessories:
- organic brake pads K03Ti without cooling fins
- sintered brake pads K04Ti without cooling fins
- sintered brake pads L04C with cooling fins