Shimano Dura-Ace R9170 Di2 Groupset Review

• Shimano Dura-Ace R9170 Di2 GroupsetThe Shimano Dura-Ace R9170 Di2 Groupset provides the pinnacle of drivetrain performance. Designed and engineered to provide the most exceptional power transfer efficiency for World Tour riders, to help them achieve the ultimate victory. Shimano has cut no corners with this Di2 groupset, which is virtually unmatched in terms of efficiency, technology and podium-proven performance. Shimano Dura-Ace Hydraulic Disc Brake PerformanceThis groupset is also equipped with among the most advanced hydraulic disc brakes in the industry. For many years Shimano has been pushing the development of disc brake technology for mountain bikes, now this exceptional brake feel, modulation and superior braking power is available on road bikes.Maintenance-Free Drivetrain PerformanceThe power and precision of Di2 is unmatched. It enables beautifully smooth shifting both front and rear. The lack of maintenance and adjustment is impressive: once you’ve customised your Di2 to shift to your preferences, it will continue to do so endlessly.Synchro Shift Electronic Gear ShiftingFor the first time in a Dura-Ace groupset, Shimano’s innovative Synchro Shift is now available as a programmable Di2 option; Synchro Shift creates an intuitive experience with synchronised front and rear shifting, which can be custom programmed. With ‘full’ and ‘semi’ Synchro Shift available, this intuitive new mode automatically reacts when you shift from one chainring to another. Remove the guess work as your rear derailleur shifts automatically to minimise the gear step so you can keep riding with a smooth cadence and rhythm. Reliable Gear Shifting PrecisionThe Di2 E-Tube system provides unmatched shift performance, reliability and rider customisation. Along with enhanced Di2 functionality, the front and rear Di2 derailleurs are connected via Shimano’s small EW-WU111 wireless unit allowing for an ANT Private connection between Dura-Ace R9100 and third party devices. These components can be connected to Shimano¬¥s E-Tube software, which supports the programmable aspects of the Di2 electronic gear shifting system. Use the Bluetooth technology for seamless access on smartphones and tablets. Shimano Dura Ace 11 Speed R9170 Di2 Drop Bar Levers: Drop bar STI with shift buttons Ergonomic design with greater reach More controllable and confidence inspiring in race conditions Carbon composite plastic material hood Customise the shifts to suit your riding style More defined click feeling and ergonomic shift lever position Updated internal shifting unit Optimally balanced hydraulic brake system for racing Powerful and controllable braking system Multi-shift function Tuneable Reach and Free-Stroke adjustment Weight: 180g (per lever)Shimano Dura Ace R9170 Hydraulic Disc Brake Calipers: Sleek, Low-profile design Optimally balanced hydraulic brake system for racing Simple set up and maintenance Easy and clean one-way bleeding process ICE Technologies Freeza for advanced heat dissipation Wide pad clearance and chamfer of brake pads Improved braking efficiency and power Balance weight, stiffness and stopping power Weight: 130g Shimano Dura Ace R9150 2×11 Speed Di2 Front Derailleur: Designed to work with the wider gear pitch spacing Shimano chainsets without sacrificing shifting performance on bikes with 135 / 142 mm O.L.D. Di2 Optimised Precise and accurate shifting Quick and smooth front shifting under high pedalling torque Fast and Smooth engagement Auto-Trim that centres the front derailleur as you shift across the rear cassette, avoiding chain rub Syncronised Shift Technology to communicate with Rear Derailleur to optimise performance Low-profile design 2×11 Speed Weight: 104g Shimano Dura Ace R9150SS 11 Speed Di2 Rear Derailleur: Derailleur contains a saver (fuse) function Low-profile design Di2 Optimised Shadow RD Technology Syncronised Shift Technology to communicate with Front Derailleur to optimise performance High tolerance cold forged aluminium link plates and body construction Four self-lubricating micro-machined fluorine-coated link pivot bushings 11 Speed Compatible Weight: 104g Shimano Dura Ace R9100 2×11 Speed Chainset: New 4-arm design for stiff, lightweight performance Weight reduction without any sacrifice to structural integrity or performance Hollowtech II construction Hollowglide chainrings 11 Speed Compatible Bolt Circle Diameter (B.C.D): 110mm Compatibility: Frames with O.L.D. 135 / 142 mm and 410mm chainstay length Shimano Dura Ace CS-9100 Cassette: For use with 11 Speed HG-EV chains Advanced, optimised shifting performance Shimano Dura Ace 11 Speed HG-901 Chain: Sil-Tec surface treatment technology (PTFE plating) Zinc-Alloy plated outer links 5.62mm chain widthShimano Di2 E-tube Electric Wires: 300mm x 1 350mm x 2 600mm x 1 700mm x 1 1000mm x 1Electronics: SM-EW90-A E-tube Di2 Junction Box-A, 3 port and the M-JC41 E-tube, Di2 bottom bracket Junction for internal wire routing Di2 internal mount battery Di2 internal battery charger direct to SM-EW90 Junction (one hour charge time)Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.
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As with many cyclists, be it mountain bikers, BMX riders or road cyclists we want to take the time to make sure we get the best products. Where cycling is a passion for many we often invest a lot of our time and money into the hobby. And as we know, getting the right products can give us that small competitive advantage either over our actual competitors, our mates or even just beating our own goals. But because we do invest so much in our bikes and our equipment it’s really important to buy from recognised retailers, in our most recent search, we found many products available online for ridiculously (almost laughable) prices. They were just so low that alarm bells should instantly be ringing. That’s why we only recommend buying from the retailers that you really know and trust, names like Wiggle, Chain Reaction and Evans Cycles are just some of those that we use regularly. With these retailers you know you’re in safe hands and can expect great service, great returns policies and if anything was to go wrong great customer service under a warranty claim.

But onto the reason you’re here today, let’s delve into some of the details of Shimano Dura-Ace R9170 Di2 Groupset to help you understand a bit more about where it sits in the market against some of the many alternatives that are available out there. We’re very aware that by buying our cycling stuff online that we’ve missed out on the opportunity to actually see and test the product first. This is where reviews come in to their own, as it gives us that chance to hear from other like-minded cyclists about how good or bad a product is.

As you would expect, our first and top piece of advice before buying, is to read lots and lots of Shimano Dura-Ace R9170 Di2 Groupset reviews. With a review score of 9.9 out of 10 it’s likely that there will be lots of great detailed reviews to help you. And if you find that actually the reviews are suggesting Shimano Dura-Ace R9170 Di2 Groupset isn’t right for you then there will be tons and tons of other reviews for other products in the Groupsets category. In fact we’ve got 132 products reviewed in this category alone.

Something that makes it particularly challenging is the vast range of choice, as mentioned above there are 132 products in the Groupsets category. There are also 2311 products from the brand Shimano. And then getting into the specifics even more there are 40 products from Shimano in the category “Groupsets”.