Shimano Dura-Ace Di2 STI ST-R9150 Shift/Brake Lever 2-/11-Speed

The Dura-Ace Di2 ST-R9150 Shift/Brake Lever by Shimano – Diverse customisation options
The Shimano Dura-Ace Di2 shift/brake lever ST-R9150 is used for electronic shifting (2-speed or 11-speed) and mechanical braking thanks to STI Dual Control technology. It features clear feedback for even more intuitive shifting, optimal brake dosing with SLR-EV system and its well thought-out ergonomics. The Multi-Shift options, which can be set via the E-Tube platform, the programmable shifting stages and a remote control switch ensure maximum individualisation. The ST-R9150 is made almost entirely of lightweight carbon.
Information regarding the return of batteries and electrical equipment:Information on the return and disposal of batteries and electrical equipment can be found here.
Specifications:Series:Dura-Ace Di2 R9150Application:RoadGearing:2-speed, 11-speedShifting System:electronicBrake Type:mechanicalTechnical Information:Brake Lever Material:carbon (CFRP)Lever Body Material:carbon (CFRP)Hood Material:carbon compositeMount:clamp (closed)Reach Adjust:boltAdjustment Options:reach adjustCompatibility:Clamp Diameter:23.8 – 24.2 mmPower Cable:EW-SD50 (2 x connection)Front Derailleur:FD-R9150, FD-R8050, FD-9070, FD-6870, FD-RX815Crank:FC-R9100, FC-R9100-P, FC-R8000, FC-R7000, FC-RS510, FC-9000, FC-6800, FC-5800, FC-RS500, FC-U5000-2, FC-RX810-2, FC-RX600-11Rear Derailleur:RD-R9150, RD-R8050, RD-9070, RD-6870, RD-RX805, RD-RX815, RD-RX817Cassette:CS-R9100, CS-9000, CS-6800, CS-5800, CS-R8000, CS-HG800-11, CS-R7000, CS-HG700-11, CS-M8000-11, CS-M7000-11, CS-M5100-11Chain:CN-9000, CN-6800, CN-HG901-11, CN-HG701-11, CN-HG601-11, CN-LG500Brake Caliper:BR-R9200, BR-R9210, BR-R9100, BR-R9110, BR-9000, BR-9010, BR-7900, BR-R8100, BR-R8110, BR-RS811-R, BR-R8000, BR-R8010, BR-6800, BR-6810, BR-6700, BR-R7000, BR-R7010, BR-5800, BR-5810, BR-5710, BR-5700, BR-4700, BR-4600, BR-R3000, BR-3500, BR-R561, BR-R2000, BR-CX70, BR-CX50, BR-CX77, BR-R517, BR-R317, BR-RS305, BR-R650*, BR-R451*, BR-R450*, BR-R550*Satellite Shifter:SW-R610, SW-R600 (1 x connection)
* with reduced braking force
Features:better modulation and greater confidence in racing conditionsmore intuitive, faster shifting: clearer click feeling and ergonomic shift lever positionprogrammable gearingfunction adaptable to every riding style: Multi-Shift can be switched on or off separately for each shifteroptimal power transmission with firm gripideal ergonomic and softer rubber grip with improved strengthremote control switchE-Tube project ensures firmware updatesSLR-EV brake technologypainted leverTechnology:STI Dual Control
Shimano Total Integration (STI) means the combination of braking and shifting functions in one lever, which increases safety when riding. By refining the technology, it became possible to make shifting so smooth at the front and rear that they can be triggered with just one finger. Shimano calls such levers Dual Control Levers (DCL).

Digital Integrated Intelligence (Di2)
Di2 systems are the electronic shifting systems from Shimano. They are based on the SEIS, the Shimano Electronic Intelligent System, which takes over the index shifting function from the mechanical components, only via power cables or radio signals and not via a Bowden cable. Shifting is done by simply pressing a button. This has the advantage that no great effort is required, your concentration on the ride is not disturbed and operation is easy even with cold hands. In addition, the electronic gear changes are very fast and highly precise. There is also no risk of a defective circuit due to dirty cables or other problems. You can adjust individual settings via the E-Tube Project, such as adjusting the shifting speed, the number of shifting operations per button press or the Synchro or Semi-Synchro shifting function. Shimano offers an app for this purpose. Gear maintenance and firmware updates are also done via E-Tube, with the bike connected to a PC running the appropriate E-Tube software for more extensive workshop work.
Models:2-speed:
Mount:leftManufacturer Number:I-STR9150L
11-speed:
Mount:rightManufacturer Number:I-STR9150RContents:1 x Shimano Dura-Ace Di2 ST-R9150 Shift-/-Brake Lever1 x Shimano TL-EW02 plug tool (11-speed version only)