Shimano Dura Ace Di2 ST R9170

Completely new: the Shimano Dura Ace Di2 disc brakes with carbon levers and the high-end technology of the Dura Ace Di2 STI shifters

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 is done at the touch of a button. The new 11-speed shift levers are also equipped with the programmable Multishift function

Shimano Dura Ace STI R9170 shift lever:

With the STI Disc shift-brake lever ST-R9120, Shimano introduces a very compact shift-brake lever with carbon brake levers for hydraulic disc brakes and the electronic Di2 shifting systems, marking a further milestone in the development of hydraulic disc brake systems for road bikes. The new Dura Ace Di2 STI levers offer optimum ergonomics thanks to the 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 new 11-speed 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 position 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. With the new shift levers, shifting can be performed much more quickly. This is achieved through a 20 per cent shorter cable. The grips feature an ergonomic design for greater comfort – even over long distances.

Shimano Disc Dura Ace STI ST-R9170 Di2 Shift/Brake Levers Technical Specifications:

• 11x2
• Adjustable grip width Carbon levers
• Compatible with Ultegra and Dura Ace 11-speed Di2 front derailleurs and rear derailleurs
• Equipped with programmable Multishift function
• Recommended brake calipers: BRR9170, BRR8070, BRR7070, BRR785, BRRS785
• Weight: approx. 555 g

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