Shimano Dura-Ace R9150 Di2 11sp Road Groupset Reviews

Review score: 9.1/10 – Updated November, 2024

Latest Price: £1399.99 – Save 55% (RRP: £3097.99)

Take a look now to discover what makes Shimano Dura-Ace R9150 Di2 11sp Road Groupset worthy of a review score of 9.1 out of 10.

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Skip to content:

• Features
• Quality
• Price
• Reviews
• Brand – Shimano
• Videos
• Summary
• Alternatives

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View reviews at Chain Reaction Cycles

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Shimano Dura-Ace R9150 Di2 11sp Road Groupset features

Quality

Quality is without doubt one of the most important factors that we consider when buying bikes, parts, accessories or clothing. As you’d imagine it’s especially important when buying Groupsets. Let’s take at a look at the sort of things you can look at when trying to ascertain the quality of Shimano Dura-Ace R9150 Di2 11sp Road Groupset.

The first thing is material. Looking at what Shimano Dura-Ace R9150 Di2 11sp Road Groupset is made of will give you a really good idea of the quality overall. Take a look at the specs above and you should be able to see the material. It’s then up to you to decide if it meets your expectation.

Similarly you’ll also want to spend some time looking at the features too. Again the table above, listing the features will give you a really good overview. However you should think about the sort of features that you’d expect when buying new Groupsets. It’s worth writing a list of the “must-have” features so that you don’t end up compromising and missing some important features, or alternatively end up buying an unnecessarily high specced product.

There’s also a lot of merit in checking out the brand of the product and looking at the various brands that are selling Groupsets. Brands like Shimano are of courses extremely well respected in the cycling community so you know you’re getting a fantastic product with them. But if you’re undecided on your product you should write up a list of brands that you’d be happy to buy. It’s a great way of filtering and narrowing down the number of products when you’re searching.

Next up you’ll want to think about the price and use that as a guide to set your expectations of the quality. If you’re buying the cheapest of the options in the Groupsets category you should probably expect it to not be of as good quality as the most expensive. It sounds obvious of course. But this is where you can get a bit clever and use your combination of features, specs, materials and other factors to work together to get a really good quality product at the best price. We often draw up a list of “must-haves” and use these as filters when shopping online so that you’re only seeing products that meet your criteria. You can then sort by Price>Low to get the best deals.

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Comparing Prices

Price, as you would imagine, is the most popular reason for someone buying one product over another. It is the single most important factor in choosing the majority of products we buy. The same goes for Groupsets.

It’s at this stage of the buying process, when you’re looking at different options, that you should set a budget. Do some research to understand how much roughly you can expect to pay for the sort of level of product that you’re looking for. Then match that to your own personal circumstance and how much you can afford to spend. This will really help you in narrowing down the right product for you.

Price of Shimano Dura-Ace R9150 Di2 11sp Road Groupset

So the first aspect of price that we’re going to look at is the price of Shimano Dura-Ace R9150 Di2 11sp Road Groupset.

We run regular scans across the web to find the best prices for the products that we review, from a range of cycling retailers. The best price we managed to find Shimano Dura-Ace R9150 Di2 11sp Road Groupset was over at Chain Reaction Cycles where the price was £1399.99 in our latest search.

Based on this price we’ve scored it 9.4 out of 10 for price.

Average price of Groupsets

Next we wanted to look at how much you can expect to pay, on average, for Groupsets.

We found 66 in the Groupsets category over at Chain Reaction Cycles. We looked at the average price of the products within this category and found the average is £881.77, making it above average at £1399.99.

It’s sometimes helpful to look at how much the prices can vary. Especially when setting yourself a budget, or when trying to understand just how much you could spend on Groupsets. We found that the most expensive product currently available was £2999.99, whilst the cheapest we managed to find was £9.99.

With 66 products available we worked out that 14 cost more than Shimano Dura-Ace R9150 Di2 11sp Road Groupset and 51 were cheaper.

Cost of Shimano products

At Chain Reaction Cycles we found 854 products from Shimano, of which 19 were in the Groupsets category.

For now though we’re looking at Shimano branded products in all categories. The average price of these products was £94.29 making this product above average.

You’ll also be interested to know that the cheapest Shimano product we found was £1.00 and the highest price we could find from them was £1999.99.

Of the 854 from Shimano, 2 were more expensive than Shimano Dura-Ace R9150 Di2 11sp Road Groupset and 851 were cheaper.

How much are Shimano Groupsets?

We then wanted to get a bit more specific and only look at Shimano products that are listed in the Groupsets category.

The average price of the 19 products that match this search was £711.36, with the cheapest coming in at £239.99 and highest price was £1999.99. With the average being £711.36, Shimano Dura-Ace R9150 Di2 11sp Road Groupset comes in above average.

1 products that meet this search were more expensive than Shimano Dura-Ace R9150 Di2 11sp Road Groupset and 17 were cheaper.

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Shimano Dura-Ace R9150 Di2 11sp Road Groupset Reviews

Reading reviews is an amazing way of getting a good feel for a product without actually being able to try it or see it first.

There are two different types of reviews, and we also recommend reading both.

1. Expert reviews – In the cycle industry there are loads of really reliable trusted resources for expert reviews. For example if you’re looking to buy a new bike, BikeRadar Bike Reviews are great.

2. Customer reviews – these are probably your best resource for information. There’s no finances or influence involved, they’re purely just honest reviews from customers that have bought and used the product. The reason we love customer reviews so much is because no matter if their view is good or bad, there’s a very good chance that it will be honest and unbiased.

Our best advice is to head over to Chain Reaction Cycles and read the Shimano Dura-Ace R9150 Di2 11sp Road Groupset reviews there.

Based on what we’ve seen in terms of reviews for Shimano Dura-Ace R9150 Di2 11sp Road Groupset, it really does look like a great buy. So for the review score, we’ve scored it 9.9 out of 10. The average review score for all products in the Groupsets category at Chain Reaction Cycles is 4.2 out of 5.

Owner reviews, as we say, are one of the most important pieces of research that we can do before we buy. So, with that in mind, if you do go on to buy Shimano Dura-Ace R9150 Di2 11sp Road Groupset or another similar product, like Shimano XT M8000 1x11sp MTB Groupset reviews or Shimano Ultegra R8000 11 Speed Road Groupset reviews we’d love you to leave a review in the comments below. It will really help future buyers just like you, when they’re looking to buy Groupsets.

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Brand

As we said in the pricing part of the review, brand is a really important consideration, but especially so when looking to buy Groupsets. But as you’re probably already aware, you’re on to a great choice if you do go with Shimano, as they’re a fantastic brand, making amazing products.

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YouTube Video of Shimano Dura-Ace R9150 Di2 11sp Road Groupset

Below we’ve embedded a video from YouTube where we’ve searched for Shimano Dura-Ace R9150 Di2 11sp Road Groupset reviews.

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Summary

Overall, we’ve been hugely impressed by the quality, price, reviews and features of Shimano Dura-Ace R9150 Di2 11sp Road Groupset. We’d say that as long as it fits your budget and meets your expectations in terms of features/spec…it’s a really strong contender. That’s why we’ve scored it a massive 9.1/10 overall.

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Further product details

• Product ID 1: 25142399621
• Product ID 2: 550532UK
• Brand: Shimano
• Model number: 5391875904
• RRP: £3097.99
• EAN: 5057567125092
• Description: Shimano Dura-Ace R9150 Di2 11sp Road Groupset  Shimano Dura-Ace R9150 Di2 Groupset (11 Speed)The Shimano Dura-Ace R9150 Di2 Groupset (11 Speed) is the highest level of groupset you can get from Shimano. Using Electronic shifting that can be customised to suit your riding style with a combination of components that ensure maximum stiffness, performance and reliable gear changes.Key FeaturesColour: BlackCassette Size: 11-25t, 12-25t, 11-28t, 14-28t, 11-30t, 11-32t, 11-34tBCD: 110mmCrank Teeth: 52-36t (Semi-Compact), 50-34t (Compact), 53-39t (Pro)Speed: 11 SpeedCrank Length: 172.5mm, 170mm, 175mmMaterial: AlloyShifting: ElectronicFront Derailleur Type: Braze OnRear Derailleur Type: Medium Cage (GS)BB: Threaded BSASynchro ShiftFor 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 guesswork as your rear derailleur shifts automatically to minimise the gear step so you can keep riding with a smooth cadence and rhythm.Di2 E-TubeThe 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.Dura-Ace R9100 ChainsetThe Shimano Dura-Ace R9100 Compact chainset is completely re-designed to offer the very best combination of lightweight and stiffness. It features Shimano’s iconic 4-arm hollow spider that is made from hollow-forged aluminium.Dura-Ace R9100 Chainset Features:Material: Hollow-forged AluminiumEnhanced design saves 7g while maintaining rigidityIconic 4-arm construction maintains high rigidity and reduces weightOptimised crank arm design strengthens key stress zonesNew chainring tooth profile is adapted for race bike specific disc brake systemsAccommodates shorter chainstays (410mm) with 135mm OLDHollowglide chainring construction maintains smooth shifting whilst reducing weight and increasing stiffnessDura-Ace Di2 R9150 2×11 STI Shifter SetThe Dura-Ace Di2 9150 shifters feature an ideal ergonomic shape that is comfortable in the hand and have been updated to be more precise and more adaptable than previous editions. The shift paddles now feature a more defined “click” and have been extended in length for more confident and comfortable shifting.E-Tube compatibility means that the function of the shift paddles can be customised to suit the rider.The Di2 R9150 shifters now include Synchro Shift technology that automatically moves the rear derailleur when the front ring is changed or moves the front chainring with the rear shifts to optimise chain-line and drivetrain efficiency.Dura-Ace Di2 R9150 2×11 STI Shifter Set Features:Material: Carbon Composite Plastic (Hood)More control and confidence in race conditionsDedicated brake lever shape, stroke, contact point, stiffness and dedicated shift paddlesLightweightMore intuitive, quicker shifting operationMore defined click feeling and ergonomic shift lever positionEach switch has the option for multi-shift On or OffE-Tube projectIdeal ergonomic cover shape with better thickness and tendernessSimple set up and maintenanceEasy replace hood coverCustomise the shifts to suit your riding styleWeight: 460g (Pair)Dura-Ace Di2 R9150 Rear DerailleurThe Dura-Ace Di2 R9150 Rear Derailleur takes the Shadow technology from its mountain bike range and introduces it to the road. The shadow design places the rear derailleur under the chainstay and cassette to give a slimmer profile, which not only helps with aerodynamics but also offers extra protection in crashes.The Shadow design offers faster wheel changes thanks to the fact that it moves the derailleur out of the way of the dropouts. It also offers faster and more precise shifting than ever before.The new derailleur comes in only one cage size that will work with cassette sprockets up to 30T. With this new Di2 9150 groupset, Shimano brings Synchro Shift to the road too. This technology allows you to shift to higher or lower gears with your right-hand shifter and both front and rear derailleurs will operate to optimise chain-line. It will also automatically shift the rear mech when you change from the large ring to the inner ring to maintain smoothness.Dura-Ace Di2 R9150 Rear Derailleur Features:Maximum Sprocket: 30TMinimum Sprocket: 11TMaximum Front Difference: 16TTotal Capacity: 35TErgonomic shifting operation without stressShimano Synchronised shiftLow profile rear derailleur designShimano Shadow RDRace endurance for less damage in crashMaintains compact and smooth appearanceWeight: 204gDura-Ace Di2 R9150 Braze On Front MechThe Dura-Ace 9150 front derailleur delivers unmatched shift quality, for quick and smooth performance even under high pedalling torque. Combined with Shimano’s Synchro Shift customisable programming, Dura-Ace Di2 delivers a level of intuitive shift performance never before seen. Dura-Ace Di2 R9150 Braze On Front Mech Features:Top Gear Teeth: 46-55TChainstay Angle: 61-66Chain Line: 43.5Ergonomic shifting operation without stressShimano Synchro ShiftRace endurance for less damage in crashQuick and smooth front shifting under high pedalling torqueMaintains compact and smooth appearanceWeight: 104gSD50 Di2 Electric WiresThe removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts.Groupset includes 1x1200mm, 1x1000mm, 1x700mm and 3x300mm wires.SD50 Di2 Electric Wire Features:Di2 uses a fully removable individual cable system from the battery indicator junction box enabling fine tuning with the correct cable length to each component for easy and tidy fitmentEW-SD50 wires are required to connect the junction (either SM-JC40 external or SM-JC41 internal to the rear mech, front mech, battery and to the handlebar battery indicator junction boxEW-SD50 individual wires are available in varying lengths, there is no need (or facility) to cut these cablesReliable and secure water-resistant connectors  JC41 E-Tube Di2 Internal Junction BoxThe Shimano Di2 SM-JC41 internal junction box is the Grand Central Station of the e-tube Di2 system. All of the component and battery wires meet here before running out to their respective components. All of the wires that connect to the junction box use the same connector to make assembly that much easier.JC41 E-Tube Di2 Internal Junction Box Features:SM-JC41 cable junction for internal wire routingJunction is required for connection of rear mech, front mech, battery, and cable to battery indicator junction boxTo be positioned neatly inside frame tubing when connectedCables sold separatelyReliable and secure water-resistant connectorsThis junction box is only made to be mounted internally on frames specially designed for an internally routed systemDi2 EW90 Junction-A Box – 3 PortThe removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts.Di2 EW90 Junction-A Box – 3 Port Features:This junction A is required to connect the shifters via E-tube wires to the downtube junction wire3-port design, one for downtube wire to bottom bracket junction, two for shifter connectionBattery level indicator featureE-tube EW-SD50 wires not includedAdditional charging point when using internal batteryGear index setup switch to allow fine tuning via shifter buttonsReliable and secure water-resistant connectorsStem mounting strap includedBT-DN110 Di2 BatteryShimano’s BT-DN110 Di2 7.4V lithium-ion battery is suitable for concealed internal mounting. This high-end lithium-ion battery will ensure the consistent, smooth, and precise functioning of your Di2 setup.BT-DN110 Di2 Battery Features:Long battery life (up to 2000km when fully charged).Internal mounting.LightweightExcellent sealing and reliabilityWeight: 50gDi2 BCR2 Charger for BTR2Di2 charger for the internal battery that will keep your Di2 system shifting.BT-DN110 Di2 Battery Features:Di2 uses a powerful long-life 7.4V Li-Ion battery: keep it in top condition and ready for shifting with this specific Shimano Di2 charger1.5 hour charge timePlugs in directly to the SM-EW90 handlebar junction ACan also be used for completing firmware updates when linked to E-tube software on your PCSM-GM01 E-Tube Di2 GrommetE-tube Di2 internal cable routing grommets to protect the wires as they enter the frame from snagging and provide a neat, clean look to your Di2 cable routing.Features:Protective solution that is quick and easy to installPack of 4Dura-Ace R9100 Road Brake Caliper SetThe Dura-Ace 9100 brakes have been developed to offer greater tyre clearance for up to 28c tyres while still maintaining the aerodynamic advantage of previous editions. They are now also up to 43% stiffer than previous Dura-Ace brake caliper’s and offer a linear braking curve for improved feel and function.Dura-Ace R9100 Road Brake Caliper Set Features:Mount Type: SLR EV Dual PivotThe best balance between rigidity, weight and stopping powerMore predictable, linear braking curveClear contact feeling with better linearityMore aerodynamic QR leverSleek designLess gap between each armBetter clearance with wider tyre (up to 28c)Weight: 326g (Pair)Dura-Ace R9100 CassetteShimano have retained the traditional close ratio cassettes from previous editions of Dura-Ace; all cassettes in the range will be compatible with the one rear derailleur so you can easily swap your cassettes out based on terrain.The cassette is manufactured from a lightweight alloy and carbon fibre spider that houses alloy sprockets. The 5 largest sprockets are manufactured from titanium to keep the weight low. The sprockets are also extensively cut away and drilled to further reduce weight without reducing rigidity.The very best and quickest shifts are optimised thanks to the Hyperglide EV sprockets that have a computer designed tooth configuration with contoured shift gates.Dura-Ace R9100 Cassette Features:Hyperglide EV sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under loadClose ratio gearing allows a more efficient use of energy through finer cadence controlLargest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity5 largest sprockets are made from titanium to reduce weight without sacrificing strengthSprockets are extensively cut away and drilled to further reduce weight without reducing rigidityNickel-plated finish offers hard wearing resistance to corrosionAlloy cassette lock-ringWeight: 175g (11-25T), 193g (11-28T), 211g (11-30T), 189g (12-25T), 205g (12-28T)Dura Ace 11-speed Chain CN-9000 114 LinksThe new symmetrical 11-speed Dura-Ace chain uses hollow pins for low weight, PTFE coating for smooth shifts and offers increased durability.Dura Ace 11-speed Chain CN-9000 114 Links Features:PTFE coatingSupplied with joining pinIncreased durability (vs. CN-7900)Weight: 243gPlease note that this groupset does not come supplied with outer cables.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.
• Full Category: Components > Groupsets
• Savings percentage from RRP: 55%
• Size: 11-28t
• Unisex
• 1698
• Adult

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Other options for Groupsets

As you’d imagine there are so many options out there when buying Groupsets. 66 in fact.

A few of our other favourites that we spotted when researching Shimano Dura-Ace R9150 Di2 11sp Road Groupset included,
Shimano Dura-Ace R9120 11 Speed Road Groupset reviews, Shimano Ultegra R8070 Di2 11sp Road Groupset reviews, or we really liked the look of Shimano Ultegra R8020 11sp Road Groupset reviews as another alternative.