Mavic Crossmax MTB WheelsetFeaturing a welded rim construction, this cross country (XC) wheelset offers a light and strong profile that's perfectly sealed. This makes it highly durable when battling across rough and challenging mixed terrain conditions at speed, while its 24 double-butted spokes allow for dynamic and agile performance. Another highlight is its tubeless ready technology, which makes it easy to ride tubeless for more comfort and control.Tubeless Ready XC Wheelset with Hookless ProfileThe name Crossmax has a long history in the world of XC riding and racing and this updated wheelset lives up to its name with many of the same features and technologies as pro-level XC race wheels, but at a far more attainable price. One of the key factors is Mavic's UST technology, which allows for easy setup of tubeless-ready tyres and gives you all the associated benefits including better traction and control, a smoother ride quality, and a reduced risk of punctures. The rim is welded for added reliability and features a 25mm internal width with a hookless profile.Infinity Hub and Centrelock Disc Brake CompatibilityThe Infinity lighter hub design optimises lateral stiffness and spokes tension. Mavic's Instant Drive 360 freewheel with a double ratchet system provides fast engagement and top-level reliability. The Crossmax also comes kitted out with Centrelock disc brake compatibility, so you can enjoy powerful and consistent braking performance when charging across the XC course.This wheelset is available in either standard or Boost axle spacing. Please choose the option from the menu to match your setup. The wheelset is delivered with valves, replacement spokes and accessories.Features: Rim Material: Maxtal Aluminium Use: Cross Country (XC) Internal Rim Width: 25mm Tyre Compatibility: Clincher ETRTO: 27.5" Option: 584x25TSS; 29" Option: 622x25TSS Spokes Material: Steel Spokes Shape: Straight pull, flat, double-butted Spoke Nipples: Steel, ABS Spoke Count: 24 front and rear Spoke Lacing: Front and rear crossed 2 Freehub: Multiple options available to select Infinity Hubs: Yes ATSM Category: 3: Cross Country Delivered With: UST valve and accessories, Pre-installed tubeless rim tape, 2 replacement spokes with each wheel Brake Type: Disc brake Disc Mount: Centrelock Single or Pair: Pair UST tubeless technology Instant Drive 360 freewheel technology QRM Auto bearing preload technology SUP Hookless profile Weight: 27.5" Option: Pair: 1680g; Front: 775g; Rear: 905g; 29" Option: Pair: 1770g; Front: 820g; Rear: 950gTechnologies: Instant Drive 360 Freewheel Technology: The Instant Drive 360 freewheel system is super light and efficient. A large contactless rubber seal provides low friction, while a wide array of end caps makes it super versatile. UST Tubeless Technology: Traction and control Universal Standard for Tubeless. Ready to ride tubeless system. The UST concept improves traction, control and comfort whilst reducing inertia and flats. SUP Welding Technology: Stronger and smoother joint Soudé Usiné Process. After bending, the rim joint is arc welded. The welded seam is then milled for a smooth finish. QRM Auto Bearing Preload Technology: Qualité de Roulements Mavic Auto (QRM Auto). Mavic's latest innovation. Those cartridge bearings are of course double sealed with C3 internal clearance. Their preload is automatically adjusted to guarantee a perfect spin with no play on the long run.Manufacturer's Part Numbers: P1667115 Black 27.5" Micro Spline P1572115 Black 29" Micro Spline P1668115 Black 29" ShimanoBuy Mavic Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
CeramicSpeed BSA Shimano Road Bottom BracketCeramicSpeed is the market leader in high-end performance components. This Ceramic Bottom Bracket delivers excellent low bearing friction with superb durability. Unique CeramicSpeed ceramic bearings are premium quality, out-performing mark rivals. The CeramicSpeed Ceramic Bottom Bracket system is so stiff and efficient that additional spacers are not required. At a fantastically lightweight of 84 grams, this CeramicSpeed Ceramic Bottom Bracket is a premium upgrade that your trusty steed deserves.Features: Material: Ceramic Bearings, Aluminium (cups) Road Specific Use with 24mm spindle cranksets Weight: 84gBuy CeramicSpeed Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Hand built by Malcolm Borg the BORG22 wheelset is the perfect choice for high mileage riders who ride in all conditions no matter what the weather.24mm wide tubeless ready Kinlin rims (also compatible with tubes)Triple butted Sapim spokesBig cartridge bearing hubs that are easy to serviceLife of the rim warrantyShimano or Campagnolo freehubWeight: 1646g (approx)The BORG22 has been hand built around a 24mm wide and 22mm deep Kinlin rim that has an internal width of 19mm and a 2mm thick spoke nipple bed. The rims are tubeless ready and come with tubeless tape, valves and IRC tyre levers. The rims have been built with 24 black Sapim laser spokes at the front and 28 black Sapim force spokes at the rear. Sapim black self locking alloy nipples are used and Sapim HM nipple washers are also utilised.To ensure the best value, performance and durability the BORG22 wheels use Miche Primato hubs. The bearings are 2x6001 C3 in both the front and rear hub shells. The rear freehub has 2x 6901 bearings. The axles front and rear are 12mm diameter and made of steel. The front and rear hub are a free axle design making disassembly really simple. Both the front and rear hub have a bearing preload adjuster which should be set once the wheels are installed in the bike. Simply reliable wheels that benefit from life of the rim guarantee against going out of true/spoke failure, rim cracking (but not rim damage) and hub flange cracking. Please note the wheelset has a rider weight limit of 100kg.Whats included:Wheelset front and rear with Sapim spokes/nipples and Miche hubsTubeless rim tapeTubeless valvesQR SkewersThe best guarantee (for the life of the rim against spoke failure and anything that could be termed a defect)
Featuring trickle down technology from the range topping Dura-Ace, the Ultegra R8025 STI shifters & Hydraulic Disc Calipers provide superbly crisp, precise and ultra-smooth shifting and powerful, consistent braking performance.Suitable for 2x11 Shimano drivetrainsPowerful hydraulic disc calipers provide excellent braking performance (Rotors & mounts sold separately)New chamferred hood tops for improved gripReliable performance in all conditionsShorter reach levers for riders with smaller handsWith the addition of powerful hydraulic disc brakes to the Ultegra range, the flat mount calipers house dual pistons that provide excellent stopping power in all conditions. Designed for 11-speed, double chainring systems, these shifters boast vastly improved ergonomics for more intuitive use, and newly chamferred tops to assist with grip in wet conditions. The lever features 15mm of reach adjustment so no matter your physiological requirements you will be able to tailor them to suit. The OPTISLICK cable technology features an electronically coated outer layer that assists with shifting efficiency and helps to weatherproof the shifters against corrosion. They also benefit from easier access to the inner cables, making these shifters eminently serviceable and a solid option for a year-round winter bike. The new ergonomic design features a new front-lever curve profile, which provides even faster and more comfortable shifting and brake engagement; it ensures performance is always at 100% and that every gear click and brake-pull feels natural and efficient. With effortless shifting performance, powerful braking and supremely comfortable ergonomics these shifters are the perfect upgrade for any rider.
Featuring trickle down technology from the range topping Dura-Ace, the Ultegra R8025 STI shifters & Hydraulic Disc Calipers provide superbly crisp, precise and ultra-smooth shifting and powerful, consistent braking performance.Suitable for 2x11 Shimano drivetrainsPowerful hydraulic disc calipers provide excellent braking performance (Rotors & mounts sold separately)New chamferred hood tops for improved gripReliable performance in all conditionsShorter reach levers for riders with smaller handsWith the addition of powerful hydraulic disc brakes to the Ultegra range, the flat mount calipers house dual pistons that provide excellent stopping power in all conditions. Designed for 11-speed, double chainring systems, these shifters boast vastly improved ergonomics for more intuitive use, and newly chamferred tops to assist with grip in wet conditions. The lever features 15mm of reach adjustment so no matter your physiological requirements you will be able to tailor them to suit. The OPTISLICK cable technology features an electronically coated outer layer that assists with shifting efficiency and helps to weatherproof the shifters against corrosion. They also benefit from easier access to the inner cables, making these shifters eminently serviceable and a solid option for a year-round winter bike. The new ergonomic design features a new front-lever curve profile, which provides even faster and more comfortable shifting and brake engagement; it ensures performance is always at 100% and that every gear click and brake-pull feels natural and efficient. With effortless shifting performance, powerful braking and supremely comfortable ergonomics these shifters are the perfect upgrade for any rider.
The BORG 26 All Weather wheelset provides guaranteed reliability in all conditions. The wheels are built with high mileage riders in mind and therefore are suitable for all types of riders. Those that ride in the foulest of conditions and simply need dependable wheels will love these wheels from BORG. Dependable does not have to heavy though. The BORG 26 have every detail covered. A robust all-weather wheelset for rim brakesStiff yet comfortableTriple butted Sapim spokesShimano8/9/10/11 speed, SRAM AXS 12 speed or Campagnolo 9/10/11/12 speed freehub24mm wide tubeless tyre ready rims (tubed tyre compatible also)26mm deep rimsLife of the rim warrantyWeight from 1760g 32 spoke with Campagnolo hubsBlack hub, rim and spokesMiche Primato HubsThe wheels are hand built in the BORG shop. They are mainly used as an all-weather training wheelset. The rims are not expensive if they need to be replaced which is unlikely and the hubs, well they love the wet. Bearing life is long in all conditions. The rim is 24mm wide and 26mm deep. It weighs 475g. The rear rim has offset drilling for increased NDS spoke tension (this is a good thing for spoke life). The internal width of this rim is 19mm and it has a 2mm thick spoke nipple bed. All tyres will sit wider on this rim than they would on a narrower one. This improves rider comfort due to the increased air volume and due to the different tyre shape handling in the bends particularly over broken road surfaces is improved. These wheels are robust, and the rims are low cost meaning they are perfect training wheels and ideal for wet weather/winter use. They are supplied tubeless ready with tubeless tape and valves. Tubed tyres can of course be fitted and are an easy fit. Even Schwalbe Marathons fit with ease. Please note that the images are for illustration purposes only.
Fulcrum Racing 5 Disc Road WheelsetThis wheelset is equipped with a hard-wearing aluminium rim construction, which offers an excellent combination of strength, durability and performance as you clock up the miles on the road. Fulcrum has also kitted out this model with an asymmetric rim design that's engineered to improve rim tension, balancing the forces from your disc brakes and sprocket cassette. Another highlight is its 24 rounded straight-pull stainless steel spokes, which ensure smooth and stable rolling performance as you go the extra distance. Coming complete with sealed cartridge bearings and many of the brand's finest technologies including 2-Way Fit, this is a great choice of upgrade for low rolling resistance, increased grip and greater protection thanks to its tubeless compatible design.Endurance Road Bike WheelsetThe Racing 5 DB wheels are the perfect choice for endurance bikes. The lower aerodynamic resistance and decreased stiffness, achieved with the lower 24mm U-shaped profile, makes them the ideal technical choice for long rides without having to worry about climbing, rain or wind, with a consequent saving in energy and increased comfort.2 Way Fit Ready TechnologyIn this case to the aluminium rim has seen an increase in the inner channel width, up to 20mm from the previous model's 17mm, and the addition of the innovative 2 Way Fit system, to comfortably fit 25-28 mm tyres, both clinchers and tubeless (tubeless tape installed and valves included).Laser-Etched GraphicsThe aesthetics have undergone the same intervention as the Racing 4 DB model, with the updated laser-etched graphics, ensuring the long life of their striking design.Features: Rim Material: Aluminium Use: Road Axle Compatibility: Front: 12x100mm; Rear: 12x142mm Inner Rim Width: 20mm Outer Rim Width: 25mm Rim Width: 24mm Profile Height: Low Tubeless Ready: Yes Tyre Size: 700c Tyre Type: 2-Way Fit Ready (Clincher/Tubeless Ready) Brake Compatibility: Disc brake, AFS Spokes Material: Stainless Steel Spokes Profile Technology: Rounded, straight pull Front Wheel Spokes: 24 (Left: 16; Right: 8) Rear Wheel Spokes: 24 (Left: 8; Right: 16) Nipples Material: Aluminium Hubs: Aluminium, Aluminium flanges Bearings: Sealed cartridge bearings, adjustable Freehub Compatibility: Multiple options available to select Finish: Lasered + Stickers Max System Weight Limit: 120kg Single or Pair: Pair Weight: 1660gTechnologies: Anti-Rotation System: This new system raises the concept of spoking to a new level of performance for road bike and triathlon wheels ( and MTB too). The Fulcrum engineers have redesigned the spokes and the hub housings to create a solid and unmoveable whole. The result is that the spokes will never lose their initial tension, thus keeping the wheel perfectly reactive and centred. The spokes will remain in the position that has been studied in the wind tunnel tests to ensure the best aerodynamic penetration possible. Fulcrum Identification Card (F.I.C.) 100% Handmade Quality: Right from its inception Fulcrum has been marked by a feature that continues to this day: that is to design, prototype and industrialise all the wheels characterised by the red “F”. Indeed these take shape inside of the R&D, the leading-edge department that represents the beating heart of the Italian company. Every single component of the wheel, the materials chosen and the technologies applied are the tangible result of the effort that Fulcrum makes every day to give you maximum performance and reliability. AFS Axle System: The Axial Fixing System is the solution developed by Fulcrum to fix the disc brake to the hub. The constraint granted by the butt area of the release mechanism, greater than in familiar standard ones, makes it possible to obtain greater structural rigidity and therefore more precise and powerful braking. Asymmetric Rim: The asymmetry is designed to improve rim tension, balancing the forces from brakes and sprocket cassette. 2-Way Fit Ready: This procedure transforms Racing 5 DB wheels (designed to be used with a clincher tyre and inner tube) into tubeless ready wheels (i.e. with a Tubeless Easy tyre, no inner tube and compulsory use of a sealant liquid). Use of tubeless and tubeless ready tyres is forbidden on 2-way Fit Ready rims without official Fulcrum 2-way Fit Ready adhesive tape. This model comes with tubeless type installed and valves included. Manufacturer's Part Numbers: FULCWF3970AP8A110 Black 700c FULCWF3970AP1A110 Black 700c FULCWF3970AP5A110 Black 700cBuy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Ultegra R8170 C60 Carbon CL Front Disc WheelThe Ultegra R8170 C60 Carbon CL Disc Wheel from Shimano features a 60mm-deep full-carbon rim that's ideal for high-speed and flatter race events. Suited to time trial and triathlon races, this wheel is tubeless ready for fast rolling speeds, low rolling inertia and exceptional grip in all conditions. And it's compatible with Shimano 11 and 12-Speed gear systems and it features a centre lock rotor mount for use with disc brakes.Designed for the highest speed environments and modern tyre widths, the Ultegra C60 front wheel shares its all-carbon rim profile with Dura-Ace but employs a hub that is compatible with both 11 and 12-speed cassettes.For situations where aerodynamics is the priority, the new Ultegra R8170 C60 front wheel features an all-carbon, 21 mm internal, tubeless compatible rim and a super-fast cup and cone bearing hub that is compatible with both 11 and 12-speed cassettes.Centre-Lock Disc Rotor MountThe Centre Lock system makes an easy rotor installation possible with a spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.D2 Aerodynamic Rim ProfileAerodynamic performance is affected by wind direction. To create the D2 rim, Shimano engineers considered both frontal and crosswinds, aiming to achieve optimal performance in real-world riding conditions. Extensive prototype testing, in the wind tunnel and on the road, proved that a wide rim shape with a deep tyre bed performs best across a wide range of conditions. At yaw angles ranging from 0 to 15 degrees, the Shimano D2 rim profile reduces air drag better than others aero shape rims. This rim design also boosts lateral wheel stiffness and offers improved vertical compliance for increased control, comfort and durability on the road.Shimano E-Thru Axle SystemThe tool-less type thru-axle skewer system optimizes rigidity and weight balance and enables easy operation with a reliable internal cam mechanism. The 15 mm thru-axle system is 15% stiffer torsionally and 25% stiffer in transverse shear than a traditional 9 mm quick release front axle system. High rigidity is secured while keeping the optimum weight balance. The E-Thru axle hub system minimizes the distortion of suspension while maintaining lightweight for riding around sharp corners at high speed.Features: Series: Ultegra R8100 Series Rim: Carbon Tubeless Ready Type: Clincher 60mm height full Carbon rim Internal Rim Width: 21mm Shared rim profile with R9200 Dura-Ace wheels Improved aerodynamics Axle: 12mm E-THRU Disc Rotor Mount: Centre Lock Weight: 738gA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Ultegra R8100 12 Speed ChainsetThe Ultegra R8100 12 Speed Chainset from Shimano offers efficient power transfer, smooth gear shifting performance and top-quality race-ready reliability. Ideal for competitive road racing, this chainset offers the optimal balance of stiffness and strength at a low weight. Plus, it features Hollowtech II crank arms, a Hollowglide outer chainring and is compatible with most modern bottom bracket standards from Shimano.Shimano's Ultegra FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, Ultegra cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. An integral part of Shimano's new 12-Speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-Speed shifting, the Ultegra crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements. Hollowglide ChainringHollow technology on the outer chainring. The Hollowglide construction ensures high rigidity while its hollow structure cuts down on weight yet maintains strength. This provides better power transfer and quicker and more precise front shifting performance. Hollowtech II Forged Crank ArmsA lightweight crankset not only reduces the bike's weight but decreases rotating mass to aid in acceleration. The challenge is to reduce the weight of the crank without reducing its strength and rigidity. Shimano's advanced forging technology has solved the problem through the HOLLOWTECH crank. Just like high-quality frame tubing, a hollow crank arm can provide amazing strength and rigidity at very lightweight. Optimised Balance of Stiffness, Strength and WeightThe concept of Hollowtech II technology is focused on producing a superior crankset that will maximize a rider's power transfer. The rigidity of the crankset ensures pedalling efficiency while its low weight, a key element of the crankset, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer. Features: Material: Hollowtech II Aluminium Series: Ultegra R8100 Series Optimal balance of stiffness, strength, weight and rotational performance HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting Recommended Bottom Bracket: Press-Fit: SM-BB72-41B; Threaded: SM-BBR60 Q-Factor: 148mm Chainline: 44.5mm Drivetrain Speeds: 12-Speed Weight: 711g (52-36T); 700g (50-34T)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.
Shimano Ultegra R8100 12 Speed ChainsetThe Ultegra R8100 12 Speed Chainset from Shimano offers efficient power transfer, smooth gear shifting performance and top-quality race-ready reliability. Ideal for competitive road racing, this chainset offers the optimal balance of stiffness and strength at a low weight. Plus, it features Hollowtech II crank arms, a Hollowglide outer chainring and is compatible with most modern bottom bracket standards from Shimano.Shimano's Ultegra FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, Ultegra cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms. An integral part of Shimano's new 12-Speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-Speed shifting, the Ultegra crank is now offered in lengths from 160 to 175 mm, bringing performance and improved fit for smaller riders, triathletes, and riders with specific biomechanical requirements. Hollowglide ChainringHollow technology on the outer chainring. The Hollowglide construction ensures high rigidity while its hollow structure cuts down on weight yet maintains strength. This provides better power transfer and quicker and more precise front shifting performance. Hollowtech II Forged Crank ArmsA lightweight crankset not only reduces the bike's weight but decreases rotating mass to aid in acceleration. The challenge is to reduce the weight of the crank without reducing its strength and rigidity. Shimano's advanced forging technology has solved the problem through the HOLLOWTECH crank. Just like high-quality frame tubing, a hollow crank arm can provide amazing strength and rigidity at very lightweight. Optimised Balance of Stiffness, Strength and WeightThe concept of Hollowtech II technology is focused on producing a superior crankset that will maximize a rider's power transfer. The rigidity of the crankset ensures pedalling efficiency while its low weight, a key element of the crankset, aids in cycling longer distances over which the rider needs to pedal more. Naturally, Shimano strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. The addition of Hollowtech II technology integrates the bottom bracket axle with the right crankarm for more stiffness and weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedalling stability, allowing for more efficient power transfer. Features: Material: Hollowtech II Aluminium Series: Ultegra R8100 Series Optimal balance of stiffness, strength, weight and rotational performance HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting Recommended Bottom Bracket: Press-Fit: SM-BB72-41B; Threaded: SM-BBR60 Q-Factor: 148mm Chainline: 44.5mm Drivetrain Speeds: 12-Speed Weight: 711g (52-36T); 700g (50-34T)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.
Pro-Lite Revo GX Gravel WheelsetThe Revo GX provides the reliability, rolling performance, responsiveness and low weight required for successful gravel racing. Combining the strengths and durability of a MTB wheelset and the rolling prowess of the unique road Revo wheels, this design rolls with race-winning authority over any terrain. Spinning on high-quality Japanese EZO bearings and featuring a tubeless-ready, extra-wide rim, it's prepared for any challenge off-road riding can present.Features: Material: Rim: 6061 Alloy; Hub/Freehub: Alloy; Spokes: Sandvik Stainless Steel; Nipples: Brass Rim Width: 23mm Spoke Type: 2.0 straight, rounded Spoke Lacing: 3-Cross Bearings: Japanese EZO Freehub: Shimano 10, 11 Speed Hub Spacing: Front: 100mm; Rear: 135/142mm Weight: 1.8 kgBuy Pro-Lite Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Road riding has never been this much fun. That's because the redesigned Ultegra ST-R8170 Dual Control Levers have all-new ergonomics, even more precise brake modulation, and wireless electronic shifting. This trifecta lets you focus on the next sprint, the next descent, or the next joke from your riding partner.Shimano's new Ultegra ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven Servo Wave technology. The all-new Di2 platform, used on both Dura-Ace and Ultegra, untethers the shifters while delivering our fastest, most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better.High performance Ultegra Wireless hydraulic Servo Wave disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditionsWireless connectivity to the front and rear derailleurs for effortless trouble free gear shiftsWith 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 gearFull and semi synchronized shifting programable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratioSimply pressing tactile buttons allows effortless and comfortable shifting even when your hands are coldDrop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STIHydraulic brake lever with Servo Wave provides excellent stopping power with less effort especially from the hood positionHydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wearFinely tuneable reach adjusters for the levers enable custom fitment for all handsLevers use CR1632 batteries which last for approximately 1.5-2 years