Shimano Tiagra 4720 2x10 Speed Road Gear ShifterThis solid shifter offers excellent entry-level riding performance with trickle-down technologies from Shimano's top-tier lines. Using its reach adjust mechanism you can customise it to suit your hand size, riding style and individual preferences, for better comfort and control in all conditions. Its smooth and effortless operation makes shifting easy, thanks to its redesigned internal shifting unit. What's most impressive, is this model delivers the same level of shifting actuation as the high-end Dura Ace series at an affordable price. Features: Use: Road Speed: 10 speed Recommended Brake Caliper: BR-4770 Reach Adjust: Tooled Type: Dual control lever Oil: Mineral oilTechnologies: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.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.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 GRX 815 Di2 2x11 Speed ShifterThis sensational shifter is specially developed to get you through the gravel and mud with stress-free operation. It features some of the most sought-after technologies including the revolutionary Di2 shifting system which gives you instant, accurate and lightning-fast shifts. Improve your grip and confidence on rough surfaces and descents thanks to its raised hood which prevents slipping. This is an ideal upgrade for riders who want to enjoy higher braking efficiency with game-changing electronic technologies. Features: Use: Gravel, Road Speed: 11 speed Reach Adjust: Tooled Type: Dual control lever Oil: Mineral oil Recommended Brake Caliper: BR-RX810Technologies: Di2: The revolutionary Di2 shifting system solves the challenges drivetrains present to the power-delivery equation in cycling. Di2 gives you instant, accurate, lightning-fast shifts the first and every time, at the push of a button. Even in the most extreme conditions, shifting is precise and controlled. You can change gear even under heavy load while climbing or accelerating. With Di2, you are in complete control. E-Tube: The E-Tube platform's “Plug & play” and D-Fly wireless connections make it easier than ever to check the system's status and apply customized settings to Di2 and Shimano Steps components with a PC, tablet or smartphone. SEIS: A technological innovation of the computerised shifting system based on the Di2 concept with which is called, the SEIS (Shimano Electronic Intelligent System). The SEIS innovative shift technology is still based on the Shimano Index System (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics. This electronic shifting system has been extensively tested over past two years by several professional riders in all conditions possible, such as rain, mud, low temperatures, cobblestone roads and combinations of all of these at the same time. Shifting is executed by simply pressing the button. No power is needed to shift, which gives important advantages since it is easier now to always keep a tight grip on the handlebar and to keep your concentration on riding instead on shifting. The shift system allows accurate and effortless shifting in difficult circumstances for example when you have cold hands or when you are completely exhausted. Furthermore, the shifting performance will never be affected by contaminated or stretched cables since the shifting signal is transferred electronically. The operating buttons work similarly to the mechanical Dual Control Lever, so you don't need to re-program your mind for the SEIS. Reach Adjust: 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.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 GRX 400 10 Speed Gravel Gear ShifterThis incredible 10 speed shifter is engineered for gravel riding as it delivers highly-efficient operation in unpredictable terrain conditions. Explore further than before thanks to its off-road inspired lever and bracket ergonomics keeping you in full control wherever your adventure takes you. Shimano has also fitted this stunning model with an anti-slip lever, so you can enjoy superior grip and responsiveness when riding over bumpier surfaces. Features: Use: Gravel, Road Speed: 10 speed Reach Adjust: Tooled Type: Dual control lever Max Multiple Shifts: 2 Recommended Brake Caliper: BR-RX400Technologies: 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. Reach Adjust: Each brake lever is equipped with a reach adjust mechanism. The distance from the handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.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 GRX 400 10 Speed Gravel Gear ShifterThis incredible 10 speed shifter is engineered for gravel riding as it delivers highly-efficient operation in unpredictable terrain conditions. Explore further than before thanks to its off-road inspired lever and bracket ergonomics keeping you in full control wherever your adventure takes you. Shimano has also fitted this stunning model with an anti-slip lever, so you can enjoy superior grip and responsiveness when riding over bumpier surfaces. Features: Use: Gravel, Road Speed: 10 speed Reach Adjust: Tooled Type: Dual control lever Max Multiple Shifts: 2 Recommended Brake Caliper: BR-RX400Technologies: 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. Reach Adjust: Each brake lever is equipped with a reach adjust mechanism. The distance from the handlebar grip to lever can be adjusted to suit any hand size, type of riding and individual rider preferences.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 XT M8100 12 Speed ShifterThe light and responsive XT M8100 12 speed shifter from Shimano is perfect for MTB (mountain bike) use as it improves your speed, control and concentration. Shift both up and down with ease using a single lever and enjoy the instant push and pull movements as you conquer the trails. Featuring a compact design combined with top technology from Shimano, this Speed Shifter is a perfect upgrade for quick and easy-shifting performance.Features:Front Speed: 2Rear Speed: 12Max Multiple Shifts: 4Release Function: 2-Way Release, Multi Release, Instant ReleaseShifter Type: Rapidfire PlusMount: I-Spec EV and Band On options available to selectAverage Weight: 78g (Left); 117g (Right)Technologies:SIS: 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. Whether you ride for fun, fitness, commuting, or competing - and on pavement or trail - Shimano S.I.S is a foundation of your cycling experience.Rapidfire Plus: Mountain bikers have used Rapidfire Plus since 1985. Rapidfire Plus is still a winning choice from a wide range of riders from XC racers to free-riders. Rapidfire Plus is suited to quick shifting, giving riders the ability to downshift three gears in one stroke. Rapidfire Plus shifters from Deore to XTR all feature 2-way Release, which means release shifts by a pull of the index finger or push of the thumb.2-Way Release: The Rapidfire Plus shifter release lever is commonly called a trigger because it is operated like a pistol, by pulling toward the grip. The release lever of Rapidfire Plus shifters from Shimano Alivio to XTR can be operated in this same manner but adds the ability to activate a release shift by pushing with the thumb.Instant Release: Instant Release shifting replaces the two-stage click and release shifting you are familiar with. Instant Release shifting releases cable as soon the lever is activated, resulting in the quickest possible gear changes. Whether it is an upshift with a top normal rear derailleur or a downshift with low normal rear derailleur a quicker shift is always a better shift.Multi Release: Previous shifting systems shifted faster in one direction than the other. Choosing top normal or low normal always meant sacrificing shifting speed in one direction. Now with Multi Release you can release shift two gears in one stroke. The result - the fastest possible shifting in both directions regardless of rear derailleur choice.Rapidfire Plus Mono: The Rapidfire Plus Mono lever provides intuitive and simple front control that empowers riders to shift both up and down with a single lightweight and compact lever. Simple and intuitive single lever operation, quicker access and lighter front shifting enhances concentration. Front double shifting with natural finger positioning supports intuitive shifting operation. Easy front shifting helps riders quickly and accurately respond to rapidly changing conditions.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 XT M8100 12 Speed ShifterThe light and responsive XT M8100 12 speed shifter from Shimano is perfect for MTB (mountain bike) use as it improves your speed, control and concentration. Shift both up and down with ease using a single lever and enjoy the instant push and pull movements as you conquer the trails. Featuring a compact design combined with top technology from Shimano, this Speed Shifter is a perfect upgrade for quick and easy-shifting performance.Features:Front Speed: 2Rear Speed: 12Max Multiple Shifts: 4Release Function: 2-Way Release, Multi Release, Instant ReleaseShifter Type: Rapidfire PlusMount: I-Spec EV and Band On options available to selectAverage Weight: 78g (Left); 117g (Right)Technologies:SIS: 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. Whether you ride for fun, fitness, commuting, or competing - and on pavement or trail - Shimano S.I.S is a foundation of your cycling experience.Rapidfire Plus: Mountain bikers have used Rapidfire Plus since 1985. Rapidfire Plus is still a winning choice from a wide range of riders from XC racers to free-riders. Rapidfire Plus is suited to quick shifting, giving riders the ability to downshift three gears in one stroke. Rapidfire Plus shifters from Deore to XTR all feature 2-way Release, which means release shifts by a pull of the index finger or push of the thumb.2-Way Release: The Rapidfire Plus shifter release lever is commonly called a trigger because it is operated like a pistol, by pulling toward the grip. The release lever of Rapidfire Plus shifters from Shimano Alivio to XTR can be operated in this same manner but adds the ability to activate a release shift by pushing with the thumb.Instant Release: Instant Release shifting replaces the two-stage click and release shifting you are familiar with. Instant Release shifting releases cable as soon the lever is activated, resulting in the quickest possible gear changes. Whether it is an upshift with a top normal rear derailleur or a downshift with low normal rear derailleur a quicker shift is always a better shift.Multi Release: Previous shifting systems shifted faster in one direction than the other. Choosing top normal or low normal always meant sacrificing shifting speed in one direction. Now with Multi Release you can release shift two gears in one stroke. The result - the fastest possible shifting in both directions regardless of rear derailleur choice.Rapidfire Plus Mono: The Rapidfire Plus Mono lever provides intuitive and simple front control that empowers riders to shift both up and down with a single lightweight and compact lever. Simple and intuitive single lever operation, quicker access and lighter front shifting enhances concentration. Front double shifting with natural finger positioning supports intuitive shifting operation. Easy front shifting helps riders quickly and accurately respond to rapidly changing conditions.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 XT M8100 12 Speed ShifterThe light and responsive XT M8100 12 speed shifter from Shimano is perfect for MTB (mountain bike) use as it improves your speed, control and concentration. Shift both up and down with ease using a single lever and enjoy the instant push and pull movements as you conquer the trails. Featuring a compact design combined with top technology from Shimano, this Speed Shifter is a perfect upgrade for quick and easy-shifting performance.Features:Front Speed: 2Rear Speed: 12Max Multiple Shifts: 4Release Function: 2-Way Release, Multi Release, Instant ReleaseShifter Type: Rapidfire PlusMount: I-Spec EV and Band On options available to selectAverage Weight: 78g (Left); 117g (Right)Technologies:SIS: 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. Whether you ride for fun, fitness, commuting, or competing - and on pavement or trail - Shimano S.I.S is a foundation of your cycling experience.Rapidfire Plus: Mountain bikers have used Rapidfire Plus since 1985. Rapidfire Plus is still a winning choice from a wide range of riders from XC racers to free-riders. Rapidfire Plus is suited to quick shifting, giving riders the ability to downshift three gears in one stroke. Rapidfire Plus shifters from Deore to XTR all feature 2-way Release, which means release shifts by a pull of the index finger or push of the thumb.2-Way Release: The Rapidfire Plus shifter release lever is commonly called a trigger because it is operated like a pistol, by pulling toward the grip. The release lever of Rapidfire Plus shifters from Shimano Alivio to XTR can be operated in this same manner but adds the ability to activate a release shift by pushing with the thumb.Instant Release: Instant Release shifting replaces the two-stage click and release shifting you are familiar with. Instant Release shifting releases cable as soon the lever is activated, resulting in the quickest possible gear changes. Whether it is an upshift with a top normal rear derailleur or a downshift with low normal rear derailleur a quicker shift is always a better shift.Multi Release: Previous shifting systems shifted faster in one direction than the other. Choosing top normal or low normal always meant sacrificing shifting speed in one direction. Now with Multi Release you can release shift two gears in one stroke. The result - the fastest possible shifting in both directions regardless of rear derailleur choice.Rapidfire Plus Mono: The Rapidfire Plus Mono lever provides intuitive and simple front control that empowers riders to shift both up and down with a single lightweight and compact lever. Simple and intuitive single lever operation, quicker access and lighter front shifting enhances concentration. Front double shifting with natural finger positioning supports intuitive shifting operation. Easy front shifting helps riders quickly and accurately respond to rapidly changing conditions.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 GRX 600 11 Speed Gravel Gear ShifterThis top-quality shifter is specially developed for gravel riding as it offers superior mixed-terrain control on every ride. Featuring off-road inspired lever and bracket ergonomics, the RX600 delivers outstanding operation when riding over rough roads, gravel and muddy conditions. Shimano has fitted this model with an anti-slip lever which helps you maintain perfect grip and actuation in any situation.Fast and Precise Gravel ShifterPart of a revolutionary new series that's designed specifically for taking your road cycling further than ever before, it uses the same light shifting operation as top tier systems. Whether you're riding after work with your friends or planning a new adventure, behind the "click" you hear and feel every time you shift, is its Shimano Index Shifting technology. This technology provides you with light, precise and consistent gear changes, so you can get the best out of every ride.What's most impressive about this sleek shifter is its customisation and adjustability to fit your riding discipline. Equipped with reach adjust technology, you can accurately fine-tune it to suit your hand size, type of riding and individual preferences. Features: Use: Gravel, Road Oil: Mineral oil Recommended Caliper: BR-RX810 Reach Adjust: Tooled Clamp Band Inner Diameter: 23.8 - 24.2mm Shifter Type: Dual Control Lever Anti-slip brake lever Greater mixed-terrain control Same light shifting operation as top tier systemsTechnologies: Shimano Index System: It's the technology behind that "click" you hear and feel everytime 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 resonate into your hand, letting you know that your commands are being answered. Reach Adjust: 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. 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 GRX 600 11 Speed Gravel Gear ShifterThis top-quality shifter is specially developed for gravel riding as it offers superior mixed-terrain control on every ride. Featuring off-road inspired lever and bracket ergonomics, the RX600 delivers outstanding operation when riding over rough roads, gravel and muddy conditions. Shimano has fitted this model with an anti-slip lever which helps you maintain perfect grip and actuation in any situation.Fast and Precise Gravel ShifterPart of a revolutionary new series that's designed specifically for taking your road cycling further than ever before, it uses the same light shifting operation as top tier systems. Whether you're riding after work with your friends or planning a new adventure, behind the "click" you hear and feel every time you shift, is its Shimano Index Shifting technology. This technology provides you with light, precise and consistent gear changes, so you can get the best out of every ride.What's most impressive about this sleek shifter is its customisation and adjustability to fit your riding discipline. Equipped with reach adjust technology, you can accurately fine-tune it to suit your hand size, type of riding and individual preferences. Features: Use: Gravel, Road Oil: Mineral oil Recommended Caliper: BR-RX810 Reach Adjust: Tooled Clamp Band Inner Diameter: 23.8 - 24.2mm Shifter Type: Dual Control Lever Anti-slip brake lever Greater mixed-terrain control Same light shifting operation as top tier systemsTechnologies: Shimano Index System: It's the technology behind that "click" you hear and feel everytime 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 resonate into your hand, letting you know that your commands are being answered. Reach Adjust: 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. 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 SLX M7100 12 Speed MTB Gear ShifterThese superb shifters are specifically designed for rowdy off-road riding as they allow for quicker lever access and light operation. Packed with some of the finest Shimano technologies around such as 2-Way Release and Rapidfire Plus, their instantaneous push and pull movements make shifting smooth and precise. Simple to incorporate into your cockpit these are a highly effective upgrade for superior concentration and enjoyment on the trails. Please Note: Each lever is sold separately in left or right I-Spec EV/Band On mounting options.Features: Front Speed: 2 Rear Speed: 12 Max Multiple Shifts: 3 Release Function: 2-Way Release, Instant Release Shifter Type: Rapidfire Plus Mount: I-Spec EV and Band On options available to select Average Weight: 77g (Left); 120g (Right)Technologies: SIS: 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. Whether you ride for fun, fitness, commuting, or competing - and on pavement or trail - Shimano S.I.S is a foundation of your cycling experience. 2-Way Release: The Rapidfire Plus shifter release lever is commonly called a trigger because it is operated like a pistol, by pulling toward the grip. The release lever of Rapidfire Plus shifters from Shimano Alivio to XTR can be operated in this same manner but adds the ability to activate a release shift by pushing with the thumb. Instant Release: Instant Release shifting replaces the two-stage click and release shifting you are familiar with. Instant Release shifting releases cable as soon the lever is activated, resulting in the quickest possible gear changes. Whether it is an upshift with a top normal rear derailleur or a downshift with low normal rear derailleur a quicker shift is always a better shift. Rapidfire Plus Mono: The Rapidfire Plus Mono lever provides intuitive and simple front control that empowers riders to shift both up and down with a single lightweight and compact lever. Simple and intuitive single lever operation, quicker access and lighter front shifting enhances concentration. Front double shifting with natural finger positioning supports intuitive shifting operation. Easy front shifting helps riders quickly and accurately respond to rapidly changing conditions. 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 SLX M7100 12 Speed MTB Gear ShifterThese superb shifters are specifically designed for rowdy off-road riding as they allow for quicker lever access and light operation. Packed with some of the finest Shimano technologies around such as 2-Way Release and Rapidfire Plus, their instantaneous push and pull movements make shifting smooth and precise. Simple to incorporate into your cockpit these are a highly effective upgrade for superior concentration and enjoyment on the trails. Please Note: Each lever is sold separately in left or right I-Spec EV/Band On mounting options.Features: Front Speed: 2 Rear Speed: 12 Max Multiple Shifts: 3 Release Function: 2-Way Release, Instant Release Shifter Type: Rapidfire Plus Mount: I-Spec EV and Band On options available to select Average Weight: 77g (Left); 120g (Right)Technologies: SIS: 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. Whether you ride for fun, fitness, commuting, or competing - and on pavement or trail - Shimano S.I.S is a foundation of your cycling experience. 2-Way Release: The Rapidfire Plus shifter release lever is commonly called a trigger because it is operated like a pistol, by pulling toward the grip. The release lever of Rapidfire Plus shifters from Shimano Alivio to XTR can be operated in this same manner but adds the ability to activate a release shift by pushing with the thumb. Instant Release: Instant Release shifting replaces the two-stage click and release shifting you are familiar with. Instant Release shifting releases cable as soon the lever is activated, resulting in the quickest possible gear changes. Whether it is an upshift with a top normal rear derailleur or a downshift with low normal rear derailleur a quicker shift is always a better shift. Rapidfire Plus Mono: The Rapidfire Plus Mono lever provides intuitive and simple front control that empowers riders to shift both up and down with a single lightweight and compact lever. Simple and intuitive single lever operation, quicker access and lighter front shifting enhances concentration. Front double shifting with natural finger positioning supports intuitive shifting operation. Easy front shifting helps riders quickly and accurately respond to rapidly changing conditions. 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 SLX M7100 12 Speed MTB Gear ShifterThese superb shifters are specifically designed for rowdy off-road riding as they allow for quicker lever access and light operation. Packed with some of the finest Shimano technologies around such as 2-Way Release and Rapidfire Plus, their instantaneous push and pull movements make shifting smooth and precise. Simple to incorporate into your cockpit these are a highly effective upgrade for superior concentration and enjoyment on the trails. Please Note: Each lever is sold separately in left or right I-Spec EV/Band On mounting options.Features: Front Speed: 2 Rear Speed: 12 Max Multiple Shifts: 3 Release Function: 2-Way Release, Instant Release Shifter Type: Rapidfire Plus Mount: I-Spec EV and Band On options available to select Average Weight: 77g (Left); 120g (Right)Technologies: SIS: 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. Whether you ride for fun, fitness, commuting, or competing - and on pavement or trail - Shimano S.I.S is a foundation of your cycling experience. 2-Way Release: The Rapidfire Plus shifter release lever is commonly called a trigger because it is operated like a pistol, by pulling toward the grip. The release lever of Rapidfire Plus shifters from Shimano Alivio to XTR can be operated in this same manner but adds the ability to activate a release shift by pushing with the thumb. Instant Release: Instant Release shifting replaces the two-stage click and release shifting you are familiar with. Instant Release shifting releases cable as soon the lever is activated, resulting in the quickest possible gear changes. Whether it is an upshift with a top normal rear derailleur or a downshift with low normal rear derailleur a quicker shift is always a better shift. Rapidfire Plus Mono: The Rapidfire Plus Mono lever provides intuitive and simple front control that empowers riders to shift both up and down with a single lightweight and compact lever. Simple and intuitive single lever operation, quicker access and lighter front shifting enhances concentration. Front double shifting with natural finger positioning supports intuitive shifting operation. Easy front shifting helps riders quickly and accurately respond to rapidly changing conditions. 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.