Despite its smaller, lighter design, the Dura-Ace FD-R9250 brings the fastest front shifting on the market. The fastest just got faster thanks to the Dura-Ace FD-R9250. Tipping the scales under 100 grams, the new design shifts 45% quicker than Shimano's FD-R9150, already the fastest on the market. And the frontal area of the FD-R9250 is also reduced to decrease aerodynamic drag. Shimano Di2 Electronic Drivetrain Performance Thanks to its lightning-fast, accurate, and reliable shifting performance, Di2 puts riders in complete control and ensures a seamless interface between the cyclist and bike like never before. Creating and continually improving the world's best shifting is a complicated undertaking requiring constant technological advancements. From hardware to software, Shimano Di2 technology is on the cutting edge, striving to deliver the best rider experience possible now and in the future. Shimano E-Tube Compatible E-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with E-Tube Project via the Windows V4 application. HYPERGLIDE+ Optimised HYPERGLIDE+ dedicated chain technology delivers greater chain retention, improved shifting efficiency, and smoother transmission over rough terrain. Improved chain retention encourages more aggressive all-terrain riding and relieves chain-issue anxiety. Smoother drivetrain transmission and enhanced shifting performance sharpens riders’ concentration and improves acceleration. Better chain engagement cuts abrasion, reduces maintenance, and lengthens the lifespan of the chain.
The fastest shifting rear derailleur across Shimano's widest ever Dura-Ace gear range, the RD-R9250 is capable of both race wins and personal bests. The Dura-Ace RD-R9250 integrates the system charging port and a wireless connectivity unit all while delivering super-fast, precise shifting worthy of any podium. Engineered with a single cage length, this derailleur shifts across cassettes with gear ratios from 11-28 to 11-34 - bringing new versatility to the world's best road component groupset. Shimano Di2 Electronic Drivetrain Performance Thanks to its lightning-fast, accurate, and reliable shifting performance, Di2 puts riders in complete control and ensures a seamless interface between the cyclist and bike like never before. Creating and continually improving the world's best shifting is a complicated undertaking requiring constant technological advancements. From hardware to software, Shimano Di2 technology is on the cutting edge, striving to deliver the best rider experience possible now and in the future. Shimano E-Tube Compatible E-Tube is Shimano's “service” that uses websites or apps to maximize the enjoyment of riding a bicycle by connecting the riders, the bicycles and Shimano. Shimano's genuine application E-Tube Project for Mobile allows you to customize your bike, update firmware, and maintain it by connecting it wirelessly to your bike. You can also get more detailed bike maintenance by connecting to your bike by wire with E-Tube Project via the Windows V4 application. Direct Mount Compatible Rear wheels are easier to remove with a mounting option for Shimano Shadow rear derailleur (RD) and Shimano Shadow RD+. The direct mount feature is designed to suit a wide range of contemporary frames with large-section chainstays, in particular, mountain bikes with thru-axle dropouts. Shimano Shadow Low-Profile Rear Derailleur The mechanism rear derailleur, Shimano Shadow RD, is intended for more aggressive riding. Its super low profile design carries many benefits. Because of its low profile and single tension construction, the derailleur does not hit the chain stay in rough riding conditions. The result is smooth and silent performance.
This superb model features a 2.5mm wider chainline in comparison to traditional road front mechs for wider tyre clearance. Its wider front gearing makes it ideal for riders who regularly enjoy riding on paved roads and longer adventures across the gravel and mud. Technologies: Shimano Index System: Every Shimano equipped multi-gear bicycle includes Shimano S.I.S - Shimano Indexed Shifting. It's the technology behind that "click" you hear and feel every time you shift through your gears. That "click" captures the light, precise, and consistent shifting bikes equipped with Shimano deliver. It's the sound of perfect gear changes, of levers directing derailleurs in harmony and the feeling that resonates into your hand, letting you know that your commands are being answered.
Featuring an adjustable chain stabiliser, the stunning Shimano GRX 400 rear derailleur prevents chain slapping and drops when riding over harsh surfaces. Whether you're riding after work with your buddies or taking your road exploration further, its switch stabiliser lets you turn it on/off based on the terrain. Smooth and reliable for mixed surface shifting, the RX400's gravel-tuned clutch tension helps you get the best experience out of every ride. Shimano has also developed its design specially for gravel bikes by ensuring a wider range that's suitable for use with larger sized tyres. Taking your riding a step further, you'll also benefit from the industry-leading technologies that the Shimano GRX 400 rear derailleur - 10 Speed model has, as these will keep you in control. Behind the "click" you hear and feel every time you shift, its Shimano Index Shifting System technology provides you with light, precise and consistent gear changes.
Enjoy ultra-smooth shifting with this 11 speed model which flawlessly moves your chain up and down when riding over mixed terrain conditions. Its chainline is 2.5mm wider in comparison to conventional road front mech's, which gives you wider tyre clearance. Furthermore, its wider range front gearing makes it perfect for riders who enjoy riding on paved roads and longer adventures. This is a perfect choice of upgrade if you want increased rigidity and improved shifting responsiveness your next adventure. Technologies: Shimano Index System: Every Shimano equipped multi-gear bicycle includes Shimano S.I.S - Shimano Indexed Shifting. It's the technology behind that "click" you hear and feel every time you shift through your gears. That "click" captures the light, precise, and consistent shifting bikes equipped with Shimano deliver. It's the sound of perfect gear changes, of levers directing derailleurs in harmony and the feeling that resonates into your hand, letting you know that your commands are being answered.
Part of the first-ever Shimano groupset that's specifically engineered for gravel riding, the fast and efficient Shimano GRX 810 rear derailleur is ready to take on any adventure. It's fully equipped for the harshest conditions thanks to its toggle clutch and switch stabiliser which can be turned on and off to match the terrain. Topped off with some of the finest technologies around, this is an ideal choice of upgrade for exploring further than ever before. Technologies: Shimano Index System: Every Shimano equipped multi-gear bicycle includes Shimano S.I.S - Shimano Indexed Shifting. It's the technology behind that "click" you hear and feel every time you shift through your gears. That "click" captures the light, precise, and consistent shifting bikes equipped with Shimano deliver. It's the sound of perfect gear changes, of levers directing derailleurs in harmony and the feeling that resonates into your hand, letting you know that your commands are being answered Shimano Shadow RD+: Less distraction quiet drive train. The rear derailleur stabiliser reduces chain slap. A simple solution for chain drop, it's lighter and more efficient than roller type chain device
Whether you're riding after work with your friends or taking on an exciting new adventure, the Shimano GRX 812 rear derailleur has you covered. You'll be able to dominate on every ride thanks to its incredibly versatile chain stabiliser which prevents chain slapping and drops as you shift. Shimano has also installed a switch stabiliser to this model, allowing you the freedom to turn it on/off based on the terrain conditions. When riding over mixed terrain surfaces with gravel and mud, the RX812 derailleur remains silent and uninterrupted thanks to some of the finest industry-leading technologies. Its Shimano Index System gives you frictionless shifting and smooth action to get you through the harshest roads efficiently. If you're interested in exploring further than ever before, the Shimano GRX 812 rear derailleur - 11 speed is an ideal choice of upgrade for an instant and reliable shifting experience.
Featuring a chainline that's 2.5mm wider than conventional road front mechs, this stunning model delivers wider tyre clearance. You'll benefit from smooth and precise shifts with its 17T front range giving you a wider front gearing experience. Part of Shimano's exclusive series that's developed for riding over rough roads, gravel and mud, this tough component is reliable and high efficient. Equipped with Shimano's revolutionary Di2 shifting system, this derailleur solves the challenges most mechanical drivetrains are faced with by giving you instant, accurate and lightning-fast shifts. At the push of a button, you'll benefit from precise gear changes even when it's under a heavy load while climbing or accelerating. Whether you're exploring or riding after work with friends, this is the ultimate choice of upgrade for riders who want to remain in complete control.
Highly versatile, this stunning model's chain stabiliser prevents chain slapping and drops as you conquer every road. You'll notice its silent and uninterrupted rear shifting on especially harsh terrains, where other rear mechs could struggle. What's also very impressive is its switch stabiliser which provides you with the freedom to turn it on/off to match the terrain conditions. Featuring the revolutionary Di2 shifting system, this rear mech delivers instant, accurate, lightning-fast shifts on every run. At the push of a button, you can maintain precise control even in the most extreme conditions with its electronic brain keeping you in charge. Additionally, you can change gear even under heavy load while climbing or accelerating making it perfect for tough rides. Smooth and reliable on mixed surfaces, its gravel-tuned clutch tension is ready to conquer all the challenges of a long ride out. Whether you're riding after work with your buddies or exploring new and unpredictable surroundings, this 2x11 speed version won't let you down.
Ready to take on any challenge, the RX817 features an adjustable chain stabiliser which prevents chain slapping and drops. Shimano has also included a switch stabiliser which can be set to on/off to match the terrain conditions, which allows you more freedom to explore the unknown. Whether you're planning a new adventure or joining friends after work for a ride out, this superb model's gravel-tuned clutch makes gear changing a breeze in any situation. Inspired by off-road groupsets, you'll enjoy its silent and uninterrupted rear shifting on harsher terrain conditions, where most common systems would fail. Smooth and reliable, this rear derailleur features some of the finest technologies to keep you riding at the top of your game. Its revolutionary Di2 shifting system solves many of the challenges that mechanical systems face with the use of state-of-the-art electronics. This technology gives you instant, accurate and lightning-fast shifts every time you ride, at the push of a button. You'll also be able to change gear when under heavy load while climbing and accelerating for a top-level shifting experience.
This superb 11 speed model allows for smooth shifting, so you'll always have a gear for tackling ever inch of the mountain. Additionally, it comes in low and high direct mount options available to select.
This front mech features a tough alloy construction, which makes it ideal at handling all the abuse that comes with blasting across the mountain at speed. Shimano has also equipped this model with a side-swing side-pull design that decreases problems with tyre clearance and reduces cable friction. Technologies: Side Swing: Side swing, side pull front derailleur decrease problems with tyre clearance and reduces cable friction. Designed specifically with modern trail bikes in mind, Shimano side swing technology front derailleurs increases tyre clearance, while cable routing resulting in the lightest shifting action yet. Wide Pivot Link: Wide pivot link design for greater torsional rigidity improves shifting response and service life.