Shimano Dura-Ace BR-R9270 / Di2 ST-R9270 Disc-Brake RW Flatmount| Action Sports

€639.00 * €689.95 * (7.38% Saved)

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Order number: BR.SH.0182
HerstellerID: IR9270DRRDSC170E
EAN: 4550170889708

The disc brake for the Dura-Ace road bike top group from Shimano consists of BR-R9270 and... more

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Product information "Shimano Dura-Ace BR-R9270 / Di2 ST-R9270 Disc-Brake RW Flatmount"

The disc brake for the Dura-Ace road bike top group from Shimano consists of BR-R9270 and ST-R9270. These are a flat-mount brake caliper for the front or rear and an electronic shift/brake lever that can be used for wireless 2-speed or 12-speed shifting and hydraulic braking.

The BR-R9270 brake caliper was designed as a one-piece mono-body construction. Compared to the Ultegra variant, this saves over 20 grams in weight at the front and rear and also increases rigidity. The brake pads have more clearance than on the previous model, which avoids grinding of the brake disc and reduces noise. The braking power of the two plastic pistons is designed for use in competitions. The BR-R9270 also scores with a simple venting process thanks to one-way bleeding technology.

In the master unit, both the brake lever and the grip body are made of carbon, which saves around 20 grams on each side compared to the Ultegra model. ST-R9270 is powered by a CR1632 button cell battery, which lasts at least 1.5 years and can be replaced by yourself. It communicates with the rear derailleur via a wireless protocol, which in turn is wired to the battery and indirectly to the front derailleur

Technical data

Series: Dura Ace R9200

Area of use: Road, Triathlon & Time Trial

Switching levels: 2x, 12x

Shifting system: electronic, semi-wireless

Brake type: hydraulic, 2-piston

Brake medium: mineral oil

Cable: SM-BH90-JK-SSR

Line length front/rear: 1700 mm

Material brake lever: carbon (CFRP)

Material grip body: carbon (CFRP)

Mounting: clamp (closed)

Reach Adjustment: Screw

Adjustment options: Reach adjustment, pressure point adjustment

caliper

Mounting: flat mount

Brake Pad: L03A Resin with cooling fins

Construction: mono body

Material caliper: aluminum

Material piston: resin

Line connection: straight

compatibility

Mounting position: left for front brake calliper, right for rear brake calliper

Clamp diameter: 23.8 - 24.2 mm

Power cable: EW-SD300-I (1 x connector)

Rear Derailleur: RD-R9250, RD-R8150

Front derailleur: FD-R9250, FD-R8150

Crank: FC-R9200, FC-R9200-P, FC-R8100, FC-R8100-P

Cassette: CS-R9200-12, CS-R8100-12

Chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100

Additional brake lever: BL-RX812

Satellite switch: SW-RS801-S, SW-RS801-T (1 x connection via EW-SD300)

scope of delivery

1x front wheel brake with shift/brake unit Dura Ace Di2

including brake pads, filled and bled

1x disc brake adapter (front wheel only)

Link to manufacturer: https://bike.shimano.com/
Delivery only within EU and EFTA countries

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