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  • Shimano - ST-R785 Di2 Hydraulic STI Lever & Disc Brake Caliper Set  - One Color
    Shimano - ST-R785 Di2 Hydraulic STI Lever & Disc Brake Caliper Set  - Brake
    Shimano - ST-R785 Di2 Hydraulic STI Lever & Disc Brake Caliper Set  - Lever
    Shimano - ST-R785 Di2 Hydraulic STI Lever & Disc Brake Caliper Set  - Lever, Side
Shimano - ST-R785 Di2 Hydraulic STI Lever & Disc Brake Caliper Set

Shimano ST-R785 Di2 Hydraulic STI Lever & Disc Brake Caliper Set

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$249.99 $669.99

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    • One Color, Easy Hose Joint System
      sale $249.99
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    Tech Specs

    Lever:
    ST-R785 Di2 hydraulic STI
    Actuation:
    hydraulic
    Caliper:
    BR-R785 hydraulic disc brake
    Mount Type:
    post
    Fluid:
    mineral oil
    Claimed Weight:
    [levers] 498g, [caliper] 262g
    Recommended Use:
    cyclocross, gravel, road cycling
    Manufacturer Warranty:
    2 years

    ST-R785 Di2 Hydraulic STI Lever & Disc Brake Caliper Set

    The R785 Di2 Hydraulic STI Lever and Disc Brake Caliper Set marks Shimano’s hydraulic disc brake debut, and because the UCI has not yet approved disc brakes at the pro-level (for which its flagship Dura-Ace groupset is intended), the R785 is atop the pack.

    The R785s feature Shimano’s IceTech technology, which results in braking power that is consistent no matter what the conditions. By placing cooling fins in the braking pads, Shimano has found a way to dissipate heat more effectively, allowing the brakes to grab faster and the pads to last longer. In addition, Shimano’s disc break system was designed to work with Di2 electronic shifting. In order to hold the fluid reservoir for mineral oil, the front profile of the R785s is higher than previous Ultegra profiles. The R785s also feature reach and stroke adjustments to ensure that your hand position is ideal. Lastly, keep in mind that Shimano’s ST-R785 Di2 Hydraulic STI Lever and Disc Brake Caliper Set does not include the rotors.

    • Ultegra-level hydraulic disc brake and Di2 shift levers
    • Japanese precision updates hydraulic braking
    • Race-worthy shift action from the most popular group we sell
    • Levers provide reach and stroke adjustment to dial feel
    • Heat-dissipating features keep the braking responsive

    One major caveat

    • Familiarity: I've put it through the wringer

    These brakes work. The major downer is the excessive free throw. The tip of the lever travels 3.5 cm. Compare to 18mm from SRAM levers. What this means is that braking 1-finger from the hoods is very difficult. This is a widely reported problem.
    The newer Shimano brakes are much better.

    Very comfortable for XL sized hands

    • Familiarity: I've put it through the wringer

    Dura Ace level quality and function. I saw so many people comment on how they hate the size and yet I'm blown away at how comfortable they are. I normally wear an XL sized glove and these things fit my hands perfectly. I get so uncomfortable on my mechanical Ultegra levered bike now that I know how much I prefer the hydro specific levers. The first levers I have been able to ride without gloves all day.

    They did 'feel' like they added about another cm of reach compared to the non-hydro levers I had on the same handlebars on another bike.

    Easy setup just need a better hood

    • Familiarity: I've used it several times

    These shifters are rad and compatible with the newer 8070 and 9170. Great choice if you still have a post mount frame like me. They set up relatively easy and work well.

    The only complaint is the hoods are big. The newer hydro di2 shifters are better and you can always upgrade later. Please let me know if you have any compatibility questions. igonder@competitivecyclist.com

    I concur that overall these shifters are great. One issue I think I have is that I want to add the remote climbing shifter (the R600) and just learned that these have only a false extra port so I have no where to plug the R600 in. Forums note that I need to now get a 5 port EW-90B. Somewhat of a bambleboozlement by Shimano if you ask me.

    Need Flat Mount Option

    • Familiarity: I've used it several times

    These are great but it would be awesome if there was an option for flat mount calipers.

    Great shifters and hydro brakes :-)

    • Familiarity: I've put it through the wringer

    I have a background in MTB'ing so the lack of hydraulic disc brakes was an adjustment when I first started riding road. Now, years later, I have 2 bikes with these shifters and they work great. I may upgrade to the new dura shifters when they come out so I can have the button and the better button action. A couple small "nagging" issues with the r785's is that they rattle if your hand isn't on them and that they feel a little "fat" on the hoods.

    Once you go hydraulic and electronic...

    • Familiarity: I've used it several times

    Di2 ain't nothing new - it works perfect every time, all of the time. That's old news. These brakes...holy moly. Take your sweetest mountain bike brakes and stick them inside a Di2 lever. Not grabby, not too strong, and as easy to modulate as a soft bristled tooth brush on a sunny Friday morning.



    You can go faster when you have more control - and these are the ticket. I'm a nerd for having the brakes engage where I want them to within the lever stroke, and you can dial this in with the reach adjustment, which really was the icing on the cable-less cake. I was inclined at first to go 1x with the SRAM setup, but the lever feel of these brakes is amazing, and I like the hood shape better.

    I totally agree. Have this system on my new Roubaix. Took that bike on the Unknown Coast ride last fall for the first ride, with wicked steep descents. I love these brakes and Di2 ! I can stop a lot faster, surer, which means I can go faster, until the last minute ! Perfect for Northern California mountain riding !

    Add me to the list of impressed; the Shimano DI2 hydraulic set is just solid. I have owned it for about 6 months and it is such a game changer after many years of road caliper brakes. Its to much fun and adds a new, unique element to road riding.