Castelli BTW Speed SuitCreated for racing, the Castelli BTW Speed Suit is their most refined, aero suit yet. Faster than the already fast San Remo suit, this is best used when you're going all-in, forging the day's break or sprinting for the win.Taking its name from a phrase coined by fast-jet military test pilots - (we'll let you research that one) - the BTW Speed Suit has been created purely in the pursuit of speed. Castelli utilised CFD analysis, 3D test mannequins, fabric research and testing, numerous wind tunnel tests, and real-world WorldTour riding, resulting in their most aero suit yet.Dimpled shoulders and sleeves deal with boundary-layer aerodynamics while a smooth body is deployed to reduced skin friction and reduce drag to as little as possible. The suit offers up to a 3% saving compared to the San Remo race suit at higher speeds, particularly between the 45-65 km/h range, speeds at which races are won and lost. While comfort wasn't the main focus for the BTW, Castelli still uses highly breathable, full-stretch fabrics. An increase in Lycra® content gives a super-snug fit, albeit with a slight reduction in wicking performance. And it doesn't have the same front opening as the San Remo suit, so pee stops are a bit more challenging. But it's a fast suit, and that's what counts. Progetto X² Air Seat PadThe top-end Progetto X2 Air Seatpad is now better than ever. Castelli has improved the shape of the back and improved the method of stitching it in place. The result is it now sits flatter and offers greater comfort.The X2 retains its awesome ventilating perforations, keeping you cooler and drier on endurance rides. The design allows air and moisture to flow directly to the surface fabric for quick evaporation maintaining dryness. A 3-layer component construction also features two densities of foam plus gel pads to provide progressive damping. A super-soft and stretchy next-to-skin layer, with an antibacterial finish, completes this premium pad.Features:Materials: 65% Polyamide, 34% Elastane. 1% PolyesterTop: 86% Polyester, 14% ElastaneMade to be the fastest option for high-speed road racingDimpled shoulder and sleeve fabric for boundary-layer aerodynamicsSmooth body for reduced skin friction and laminar flowPremio-based short portion for aero comfortProgetto X² Air seamless seat pad for all-day comfort2-way YKK® zipperLasered tone-on-tone logos at back of leg and stitched scorpion patch at top of backSleeves to hold numbers over 2 rear pocketsSuggested temperature range: 15 to 35 degrees CBuy Castelli Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.
Designed for use with our proven, reliable XD™ Driver Body, this 12-speed, 10- to 50-tooth cassette offers an optimal 500-percent gear range at a considerably lighter weight than 2x systems. It carries with it the X-DOME™ architecture, which, independent tests have concluded, yields the strongest cassettes on the market. New shifting characteristics improve both, inboard and outboard shifting, as well as chain retention.
The top of the line SRAM XX1 Type 2.1 rear derailleur features small improvements over the previous model, to give you smooth, precise shifting and ultra-reliable performance with your SRAM 1x11 drivetrain. With its "horizontal parallelogram" design and pulley offset, the SRAM XX1 Type 2.1 11-speed Rear Derailleur keeps the chain gap constant across all 11 gears, providing fast, precise shifts. By limiting all movement to the horizontal axis, this design is faster, reduces shift force and eliminates ghost shifting. Roller Bearing Clutch technology reduces bounce and chain slap, while Cage Lock technology makes wheel removal and installation easier than ever before. Paired with the XX1 shifter, the X-Horizon rear derailleur forms the backbone of X-Actuation technology for unbelievably smooth shifting action.
A new level of performance for Shimano 12-speed road rear derailleurs. Wide 36T-compatible 12-speed Di2 rear derailleur. Receiving the wireless shifting signal from the shift lever, the Shimano 105 rear derailleur completes a shift in the blink of an eye with its high-performance motor and optimised link structure. This is the hub of the Di2 system, with the charging port, indicator LEDs, adjustment switches and more integrated into a compact package. A low-profile design reduces damage from contact and falls.105 Shadow design with 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 gearThe rear derailleur is now the brains of the system with wireless connectivity to the shifters. It acts as the point the system is charged, provides ANT+ connection to 3rd party devises and replaces the handlebar junctionButton on the derailleur for Di2 operations, and LED light denotes synchronized shift mode, setting mode and charge requirementsSleek appearance with Low profile Shadow design construction reduces risk of damage in a crashProgrammed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shiftThe removal of traditional mechanical cables in favour of electrical wires to the battery not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shiftsDerailleur contains a saver (fuse) function, where the inner structure is protected from strong impactsHigh tolerance cold forged aluminium link plates and body construction is extremely light and durableFour self-lubricating micro-machined fluorine-coated link pivot bushings provide low-friction shifting12-speed E-tube Di2 compatibleWide gear ratio compatible up to 11-36T
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:Gravel inspired lever and bracket ergonomics,Anti-slip brake lever,Greater mixed-terrain control,Same light shifting operation as top tier systems.
The Shimano 105 Di2 RD-R7150 rear derailleur is quite possibly the biggest advancement in 105 technology since the range was introduced. In its mechanical form, 105 offered excellent shifting performance; the introduction of electronic gear changing offers even quicker and smoother shifting than ever. With a 105 Di2 rear derailleur at your disposal, you’ll have access to lightning-quick, effortless gear changes at the click of a button. What Big Teeth You Have: The 105 R7150 rear derailleur comes with a greater range of gear capacity. Coming as 12-speed and capable of handling a 36T cassette, it’s the perfect rear mech for tackling those big days out on the bike. Pair it with a compact chainset up front and there’ll be very few mountains you won’t be able to tackle. Such a broad range of gears will have you confidently tackling steep climbs, taking on bikepacking adventures, or getting stuck into fast bunch rides. From The Shadow: Similarly to Shimano’s top-tier lines—Dura-Ace and Ultegra—and drawing on the company’s mountain bike ranges, the 105 Di2 rear derailleur uses the “shadow” design. This design is intended to increase stability when shifting on rough roads and under load. With such technology you can be confident when changing gears on those steep inclines and when caught out in a race. What’s more, the shape created from this design is sleek and compact, reducing the risk of damage in the event of crash and increasing your aerodynamic advantage. Wireless Indicators: Though the 105 Di2 rear derailleur is compact in its design, it’s still chocked full of technological wizardry. It includes an integrated wireless unit that, in conjunction with the shifters, offers seamless gear changes free of cables. Handily, the derailleur features LED status indicators to let you know: battery status, when the unit is paired, and when it is in adjustment mode. Product Features: 12-speed Di2, electronic gear changes LED Status Indicator, to signal battery status, pairing, adjust mode Weight: 302g Max low gear: 36T Max high gear: 11T
Shimano GRX 600 2x11 Speed Gravel Disc BrakeThis stunning disc brake provides you with the stopping power and precision needed to tackle all the challenges of gravel riding. Its off-road inspired lever and bracket ergonomics deliver superior mixed terrain control, so you can easily ride across rough roads even in muddy conditions. Shimano has also raised the benchmark for maintaining a strong grip and modulation in any conditions by making the lever from anti-slip construction. Adjustable Gravel Disc BrakeFeaturing some of the best Shimano technologies available, you'll be able to conquer your next adventure, wherever the road takes you. Its reach adjust technology allows you to precisely customise its feel to suit your hand size, riding style and individual rider preferences. Topping it off is its Servo Wave Action technology which delivers fast braking efficiency between your pads and rotor, so you can enjoy more rapid braking power and control. Features: Use: Gravel, Road Speed: 2x11 speed Oil: Mineral oil Reach Adjust: Tooled Clamp Band Inner Diameter: 23.8 - 24.2mm Type: Dual control lever Technologies:Reach Adjust: Its brake lever is equipped with a reach adjust mechanism. The distance from handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences. Ice Technologies: The fade, which can occur to disc brake rotor and pad when braking on a long downhill ride has a negative impact on the braking performance. Shimano has adopted Ice Technologies disc brake rotor and Ice Technologies pad to realise the cooling technology for consistent performance. The clad disc brake rotor blade, which has a 3 layer-sandwich structure of stainless steel, aluminium and stainless steel, provides better radiation performance achieving from 400˚C to 300˚C surface temperature. Also, the radiation fin has been adopted for the pad. Moreover, the clad disc brake rotor blade and the radiator fin provide long pad life, less noise, less fade and lightweight. One Way Bleeding: One Way Bleeding was developed for quick and easy prevention of air in our hydraulic system. We have streamlined the oil route throughout the system to prevent air bubbles from being captured in the system. One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system.Click HERE to check out the Shimano Brake Reference Guides.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.
The chainset is a crucial element in Campagnolo's gravel & all-road specific Ekar drivetrain design. Lightweight, secure and simple, the Ekar chainset will convince you that one chainring and no front mech is the way to go, whatever your off-road ambitions!UD carbon crank arms with Ultra-Torque 630 steel axle is super stylish, lightweight and strongProTech system provides strong, efficient, self-aligning semi axles, sealed from dirtNarrow-wide Tooth Design for efficient drive & maximum chain securityCrank boots included to protect the crank armsDon t let the apparent simplicity fool you, this chainset has been designed from the ground up. Just like the whole Ekar system, the cranks combine strength and lightweight materials. The 2-piece crankset features a strong, durable 630-grade steel alloy axle mated to a polyamide-carbon spider and beautiful UD Carbon arms. The narrow-wide chain ring securely holds the chain place over even the roughest terrain, yet still runs super efficiently.
The chainset is a crucial element in Campagnolo's gravel & all-road specific Ekar drivetrain design. Lightweight, secure and simple, the Ekar chainset will convince you that one chainring and no front mech is the way to go, whatever your off-road ambitions!UD carbon crank arms with Ultra-Torque 630 steel axle is super stylish, lightweight and strongProTech system provides strong, efficient, self-aligning semi axles, sealed from dirtNarrow-wide Tooth Design for efficient drive & maximum chain securityCrank boots included to protect the crank armsDon t let the apparent simplicity fool you, this chainset has been designed from the ground up. Just like the whole Ekar system, the cranks combine strength and lightweight materials. The 2-piece crankset features a strong, durable 630-grade steel alloy axle mated to a polyamide-carbon spider and beautiful UD Carbon arms. The narrow-wide chain ring securely holds the chain place over even the roughest terrain, yet still runs super efficiently.
The chainset is a crucial element in Campagnolo's gravel & all-road specific Ekar drivetrain design. Lightweight, secure and simple, the Ekar chainset will convince you that one chainring and no front mech is the way to go, whatever your off-road ambitions!UD carbon crank arms with Ultra-Torque 630 steel axle is super stylish, lightweight and strongProTech system provides strong, efficient, self-aligning semi axles, sealed from dirtNarrow-wide Tooth Design for efficient drive & maximum chain securityCrank boots included to protect the crank armsDon t let the apparent simplicity fool you, this chainset has been designed from the ground up. Just like the whole Ekar system, the cranks combine strength and lightweight materials. The 2-piece crankset features a strong, durable 630-grade steel alloy axle mated to a polyamide-carbon spider and beautiful UD Carbon arms. The narrow-wide chain ring securely holds the chain place over even the roughest terrain, yet still runs super efficiently.
The chainset is a crucial element in Campagnolo's gravel & all-road specific Ekar drivetrain design. Lightweight, secure and simple, the Ekar chainset will convince you that one chainring and no front mech is the way to go, whatever your off-road ambitions!UD carbon crank arms with Ultra-Torque 630 steel axle is super stylish, lightweight and strongProTech system provides strong, efficient, self-aligning semi axles, sealed from dirtNarrow-wide Tooth Design for efficient drive & maximum chain securityCrank boots included to protect the crank armsDon t let the apparent simplicity fool you, this chainset has been designed from the ground up. Just like the whole Ekar system, the cranks combine strength and lightweight materials. The 2-piece crankset features a strong, durable 630-grade steel alloy axle mated to a polyamide-carbon spider and beautiful UD Carbon arms. The narrow-wide chain ring securely holds the chain place over even the roughest terrain, yet still runs super efficiently.
The chainset is a crucial element in Campagnolo's gravel & all-road specific Ekar drivetrain design. Lightweight, secure and simple, the Ekar chainset will convince you that one chainring and no front mech is the way to go, whatever your off-road ambitions!UD carbon crank arms with Ultra-Torque 630 steel axle is super stylish, lightweight and strongProTech system provides strong, efficient, self-aligning semi axles, sealed from dirtNarrow-wide Tooth Design for efficient drive & maximum chain securityCrank boots included to protect the crank armsDon t let the apparent simplicity fool you, this chainset has been designed from the ground up. Just like the whole Ekar system, the cranks combine strength and lightweight materials. The 2-piece crankset features a strong, durable 630-grade steel alloy axle mated to a polyamide-carbon spider and beautiful UD Carbon arms. The narrow-wide chain ring securely holds the chain place over even the roughest terrain, yet still runs super efficiently.