Disc Shimano Dura Ace Di2 TT ST R9180-BR R9170

Shimano Dura Ace Di2 disc brakes for use on triathlon and time trial bikes, fitted with carbon levers and the high-end technology of the Dura Ace Di2 STI STR9180 shift levers. These shift levers are now equipped with a single Di2 switch and can be programmed entirely to your preferences. These shift levers are compatible with all 11-speed Di2 rear derailleurs and front derailleurs, as well as with 12-speed Di2 rear derailleurs and front derailleurs. For 12-speed installation, the shift levers require the latest firmware version.

The new Dura-Ace Di2 STI levers offer optimum ergonomics thanks to their adjustable grip width. The Dura-Ace Di2 shift-brake levers are fitted with carbon brake levers. Shifting taken to a new level. Extremely fast and precise. Thanks to electronic transmission of shift commands, these are executed without delay. Operation is similar to that of mechanical STI levers; shifting takes place at the touch of a button. The STR9180 shift levers are also equipped with the programmable Multishift function

Shimano Dura Ace STI R9180 shift lever:

With the STI Disc shift-brake lever ST-R9180, Shimano introduces a very compact shift-brake lever for time trial handlebars, hydraulic disc brakes and the electronic Di2 shifting systems, marking another milestone in the development of hydraulic disc brake systems for road bikes. The new Dura Ace Di2 STI levers offer optimum ergonomics thanks to their adjustable grip width. The Dura-Ace Di2 shift-brake levers are fitted with carbon brake levers. They shift extremely quickly and precisely. Thanks to electronic transmission of shift commands, these are executed without delay. Operation is similar to that of mechanical STI levers; shifting is done at the touch of a button. The shifters are also equipped with the programmable Multishift function. Shimano’s engineers have succeeded in integrating a mineral oil cylinder, including a complete braking system, into the still very compact mechanical shift-brake levers. The brake levers are made from multi-layer composite; this technology guarantees maximum stiffness, durability and a lightweight design. Thanks to the improved positioning of the brake cable, a smooth braking action is achieved, leading to optimised control in extreme conditions. The Dual Control shift/brake levers can be optimally adjusted to the rider via a grip width adjustment and are also very well suited to riders with small hands. Shifting is significantly faster with the new shift levers. This is achieved through a 20 per cent shorter cable. The grips feature an ergonomic design for greater comfort – even over long distances.

Shimano BRR9170 brake caliper:

The BR-R9170 road bike disc brake caliper is torsion-resistant and approved for brake discs up to 160 mm. Equipped with brake pads featuring external cooling fins, brake heat is reliably dissipated. These brake calipers are compatible with all Shimano disc brake levers

Flat Mount Standard:

The new Flat Mount caliper standard for road bike brakes reduces weight and offers a significantly sleeker look. With the Flat Mount standard, the rear brake caliper sits directly on the chainstay; no adapter is required for mounting the brake caliper. The bolts pass through the chainstay from below directly into the brake caliper. A flat adapter is still required on the fork. The adapter is screwed onto the rear of the fork leg, with the brake sitting directly on the adapter.

To operate the Dura-Ace Di2 shift levers, the EW-SD50 cable and SM-EW90 junction port for Shimano’s Di2 system, complete with a Quick Mount battery holder and mounting hardware, are also required. The EW-SD50 cable set features connectors for the rear derailleur, front derailleur and battery pack. Additionally, the SM-EW90 cockpit junction port is required for connecting the Dura Ace Di2 STI shift levers.

To use the wireless function, the new BT-DN110 battery and the EW-WU111 Bluetooth module are also required.

Shimano Disc Dura Ace STI ST-R9180 Di2 TT Shift-Brake Levers Technical Specifications:

• 12-speed and 11-speed 2x
• Adjustable grip width Carbon levers
• Compatible with Ultegra and Dura Ace 12-speed and 11-speed Di2 front derailleurs and rear derailleurs
• Equipped with programmable Multishift function
• Recommended brake calipers: BRR9170, BRR8170, BRR9170, BRR785, BRRS785
• Weight: approx. 555 g

Shimano BR9170 Flat Mount brake caliper Technical data:

• Aluminium brake caliper, flat mount installation
• 2-piston system
• Rensin L02A brake pads
• Weight: approx. 260 g
• Flat Mount standard
• Recommended brake hose: SM-BH90JKSS
• Maximum brake disc size: 160 mm
• Recommended brake discs: all Shimano brake discs

Included in delivery: Dura-Ace STI Di2 Disc shift/brake lever Shimano STR9180, Dura-Ace brake caliper Shimano BRS9170 with adapter, brake pads L02A, brake hoses 100

Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com