Top of the range, high performance Dura-Ace wireless hydraulic Servo Wave disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditionsWith Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear,Wireless connectivity to the front and rear derailleurs for effortless trouble free gear shifts,Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold,Shifters are lightweight thanks to carbon fibre lever blades, carbon composite bracket body, and a titanium clamp band / fixing bolt,Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI,Hydraulic brake lever with Servo Wave technology provides excellent stopping power with less effort especially from the hood position,Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear,Finely tuneable reach adjusters for the levers enable custom fitment for all hands,Free stroke adjustment for pad to rotor contact setting,Levers use CR1632 batteries which last for approximately 1.5-2 years,Ports for use with SD300 E-tube electric cables - E-tube wires Not included.
Elite road racers demand reliable and precise shifting, 12-speed Dura-Ace R9150 delivers with its super-lightweight and compact designSynchronized Shift designed, developed to choose the next biggest or lowest gear ratio irrespective of whether a gear change needs to be made by the front or rear derailleur,The Di2 front derailleur's operation is pioneering, smooth shifting is guaranteed thanks to wireless communication with the gear levers. What's more, shifting the rear derailleur automatically trims the front derailleur,The biggest difference you will notice is just how much quicker and effortlessly smoother shifting on the front chainrings is, even under load,The 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,The front derailleur also trims automatically; the cage moves in response to the position of the rear derailleur on the cassette to ensure no chain rub and a quiet unobtrusive ride, enabling you to concentrate on the road ahead,Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available,12-speed E-tube SD300 wire compatible.
2-Pack of B03S disc brake pads and springsPair of genuine Shimano replacement pads ,Steel back plate with resin braking compound ,Will fit; BR-M575, BR-M525, BR-M495, BR-M486, BR-M485, BR-M475, BR-M465, BR-M445, BR-M416-A, BR-M416, BR-M415, BR-M375, BR-T615.
Key Features:This product is a Genuine Shimano replacement part,For XTR and Saint RD-M986, RD-M985, RD-M981, RD-M980 and RD-M820 rear derailleurs.
The HollowTech II 12-speed Dura-Ace chainset offers the optimum balance of light weight and rigidity, making it the global choice for road racing's elite ridersHollow outer chainring, giving vast improvements in rigidity and increased weight savings,The hollow outer chainring has essentially removed outer chainring flex, hugely improving shift performance making it precise even under high load,These industry leading HollowTech II 4 arm cold forged hollow crank arms have been evolved to increase rigidity, reduce weight, and improve strength,The teeth have been developed to work only in conjunction with the 12-speed chains for improved contact providing more efficiency and improved power transfer,There is a wide range of chainring ratios and crank arm lengths available enabling customisation for all riders and racing disciplines,HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency,Bottom bracket seal design has a minimal bearing interface gives superbly smooth rolling and increased durability.
Instead of telling gravel riders what they needed, we asked them what they wanted. Shimano spent two years listening and countless hours speaking with gravel enthusiasts from all over the world. We took to dirt and gravel roads, narrow singletrack paths, creek crossings, and mountain passes to test ourselves and our notions of drop bar cycling. We pinned on race numbers and packed up bikepacking bags. We choked on dust and reveled in mud. And the result of all that riding and all those new friendships? First, Shimano’s Gravel Alliance and now, Shimano GRX, the world’s first dedicated gravel component series.Choice. Shimano’s new GRX line is all about choice. Shimano doesn’t want to pigeonhole the way you ride, or decide for you what the best solution is for your riding style. While we’ve long been fans of double chainring drivetrains, we also recognize the value of a single chainring system. With GRX, Shimano offers both, each with gearing options that allow you to tailor your drivetrain to suit your tastes.With two different derailleur cage lengths, Shimano GRX ensures stable shifting and chain retention across a wide range of gearing options. Looking for maximum range while maintaining road cassette progression? Go with GRX’s 800 series 2x11 RD-RX810 or Di2 RD- RX815 rear derailleurs, designed for close ratio clusters, with 48/31 chainrings and an 11-34 cassette. Paired with 700c x 40mm tires, it delivers a top gear similar to a road bike with 25mm tires and a 50 x 11 gear. And on the low end, with its 31 x 34 combination, you get a gear that early mountain bikers would envy. It is the lowest gear currently on offer for premium road drivetrains (aside from Shimano’s own GRX 2x10 30-36 offering), perfect for climbing loose, dirt and gravel surfaces.Want to drop some weight, simplify your shifting, and still maintain a versatile range? Consider the 1x11 GRX option with either Shimano’s 11-40 or 11-42 cassette and a 40 or 42-tooth equipped crankset, shifted by a RD-RX812 or Di2 RD-RX817 wide ratio rear derailleur. You’ll lose a little, absolute top speed, but still love the 1:1 low gear ratio. If you live in an area without sustained or steep climbs, you might love the smaller gear steps of that same 1x11 front chainring with an 11-34 cassette. Options abound.What about when the weather turns autumnal and you contract a case of cyclocross fever? GRX 1x11 can quickly transform from gravel fun to CX focused with the change of a cassette.No matter the option you select, GRX rear derailleur offerings feature Shimano’s SHADOW Plus chain stabilizer that can be turned on or off depending on conditions. SHADOW Plus revolutionized the mountain bike world and now it’s been tuned for gravel and rough road riding in GRX. With a quieter drivetrain, SHADOW Plus helps you engage with your surroundings and enjoy time outside.Today’s gravel riders demand more of their bikes and of themselves. Shimano GRX gives them the options they need to Explore Beyond, tailoring their drivetrains to suit their needs and exceed their expectations. We’ll see you out there!Designed for riding on rough roads, through gravel and mud, to be able to carry on in comfort, stress-free, to wherever you want, to allow you to achieve that unique sense of accomplishment. The first groupset designed for Gravel riding Explore beyond. Introducing SHIMANO GRX.Game-Changing Innovation.Even on the roads less travelled, our new GRX tech will keep things smooth, silent and safe – with you always in control.Designed from the ground up for gravel adventure.Mix and match components to customise your bike for a wide range of terrains – and ride the way you want!Key Features:Adjustable chain stabilizer prevents chain slapping and drops,Switch stabilizer ON/OFF to match the terrain,Gravel-tuned clutch tension,Silent and uninterrupted rear shifting on rough terrain,Smooth and reliable mixed surface shifting,Compatible with current road DUAL CONTROL LEVER,Top sprocket: Max. 11T/Min. 11T,Low sprocket: Max. 42T/Min. 40T,Total capacity: 41T.
Key Features:Deore mountain bike Rapidfire shifter pod featuring 2-way release for cost effective Dyna-Sys 10-speed shifting performance,Light to the touch but positive and crisp, Vivid indexing provides a constant amount of shift lever force across all 10 sprockets,2-way release allows shifting from various riding positions; the upper lever still performs the same shift function, but it can now swing in either direction allowing it to be released by the thumb or index finger,Dyna-Sys 10-speed compatible - for use with precision 10-speed MTB drivetrains,Pod design allows the use of these shifters with any brake lever,Multi-position adjustable handlebar clamp for custom lever positioning,Easy to read optical gear display,Barrel adjuster for fine gear tuning,Complete with Optislick inner and SP41 outer cables,Easy access clamp band adjustment for quick set up.
Key Features:Wide link Shadow design top normal Deore rear derailleur,Shadow features a super low profile design that reduces the risk of damage from trail side hazards,Single tension spring prevents contact with the chainstay resulting in a silent ride,Direct cable routing prevents snagging from any trail side hazards,Alloy and steel construction leads to lower weight without compromising strength and durability,Wide link design increases rigidity and service life,Top normal return spring lends to incredibly intuitive operation when combined with Rapidfire shifters,Large 11 tooth pulleys are used for longer life,Two fluorine-coated link bushings for low-friction operation,8- and 9-speed compatible,Compatible with 32-36T low sprocket,Average weight 286 grams.
Shimano STEPS battery chargerCan charge without removing battery via compatible mounts,Charger is compact and lightweight for those on the go,Can charge battery directly off the bike with adapter supplied,Fast charging time, up to 80 percent charge in 2 hours (full charge: 4.5 h).
Key Features:Lightweight 10-speed cassette with rigid alloy sprocket carrier for reduced weight and better shifting performance, even under the most demanding gear changes,Hyperglide sprockets have been designed to reduce weight with improve teeth shaping giving accurate shifting and reduced wear,Wide gear range to meet the demands of all types of rider,Weight 208 grams (11-23 teeth).
Key Features:Suitable for use with double or triple chainset,Fitting for braze-on downtube shifter mounts,Lightweight aluminium construction.
Description will appear here shortly...