Assos EQUIPE RSR Cycling Bib Shorts Superléger S9Created for the demands of high temperatures and high-level efforts, the Assos EQUIPE RSR Cycling Bib Shorts Superléger S9 excel when you're riding both intense indoor training sessions and during the heat of summer riding outdoors.The EQUIPE RSR Cycling Bib Shorts Superléger S9 use the platform of the standard RS and RSR Bib Shorts S9. But they've been re-engineered to boost hot-weather comfort via a lower weight, just 120grams, and enhanced ventilation. Be it an indoor race or a scorching day ascending Alpine climbs, they're the ideal choice. Low on weight. High on Ventilation.Cooler and fresher legs are made possible thanks to the application of super-light Breezer Tex. This material is deployed for the full-wrap Butterfly panel across legs and hips. This woven fabric has a mesh-like structure, enhancing the airflow to your legs while also allowing your skin to breathe. Meanwhile, all other panels use OSSIDIA warp-knit material. With a compressive fit, you'll enjoy enhanced muscle support to find off fatigue. It also has excellent abrasion resistance, giving greater durability when you're on the saddle. Meanwhile, the bib straps use a lighter elastic, reducing weight and minimising sweat absorption. A-Lock EngineeringAssos apply the same S9 A-Lock Engineering for these Superléger shorts. This compromises a two-panel design made into a unique butterfly' panel design, snugly wrapping the legs and back to create a brand new ergoBox structure. This holds the insert securely in place for an incredible feeling of support and frictionless comfort no matter how intense your efforts. With fewer seams, weight is also reduced to the minimum. At the waist, raw-cut edges give a smooth transition between body and fabric, ensuring more comfort and less pressure. Raw-cut edges are also utilised at the leg openings, with minimal silicone grippers to keep your shorts in place with minimal weight and pressure. S9 SUNDECK Seat InsertAn evolution of the EQUIPE RS insert, the S9 SUNDECK enjoys a reduction in weight for less bulk. Assos' whirlKrater system is also deployed. This uses strategically placed holes throughout the pad to boost airflow, creating a pad that minimises sweat absorption and boosts breathability. You'll also have the benefits of the standard RS pad. Shock-absorbing SuperAir microShock foam, in a 3D waffle design, is quick to return to its original form, filling gaps each time you shift weight and change position on the saddle. The waffle design meanwhile, sees the use of three-layer perforated foam to increases breathability and reduce bulk. And with goldenGate technology, the unique design allows a more natural irritation-free movement when pedalling. Features:Materials: 64% Polyamide, 9% Polyester, 27% ElastaneButterfly panel in Breezer Tex textile - ultralight woven fabric with mesh-like structureCompressive OSSIDIA warp-knit across front and rear panelsA-Lock Engineering technologyErgoBox construction stabilizes seat padZeroWaist raw cut waist transitionButterfly pattern wraps lower legs and backskinGrip finish, a raw-cut edge with minimal silicone treatment at the legsLightweight bib-strap constructionS9 SUNDECK Seat InsertBuy Assos Cycle Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.
Assos EQUIPE RSR Cycling Bib Shorts Superléger S9Created for the demands of high temperatures and high-level efforts, the Assos EQUIPE RSR Cycling Bib Shorts Superléger S9 excel when you're riding both intense indoor training sessions and during the heat of summer riding outdoors.The EQUIPE RSR Cycling Bib Shorts Superléger S9 use the platform of the standard RS and RSR Bib Shorts S9. But they've been re-engineered to boost hot-weather comfort via a lower weight, just 120grams, and enhanced ventilation. Be it an indoor race or a scorching day ascending Alpine climbs, they're the ideal choice. Low on weight. High on Ventilation.Cooler and fresher legs are made possible thanks to the application of super-light Breezer Tex. This material is deployed for the full-wrap Butterfly panel across legs and hips. This woven fabric has a mesh-like structure, enhancing the airflow to your legs while also allowing your skin to breathe. Meanwhile, all other panels use OSSIDIA warp-knit material. With a compressive fit, you'll enjoy enhanced muscle support to find off fatigue. It also has excellent abrasion resistance, giving greater durability when you're on the saddle. Meanwhile, the bib straps use a lighter elastic, reducing weight and minimising sweat absorption. A-Lock EngineeringAssos apply the same S9 A-Lock Engineering for these Superléger shorts. This compromises a two-panel design made into a unique butterfly' panel design, snugly wrapping the legs and back to create a brand new ergoBox structure. This holds the insert securely in place for an incredible feeling of support and frictionless comfort no matter how intense your efforts. With fewer seams, weight is also reduced to the minimum. At the waist, raw-cut edges give a smooth transition between body and fabric, ensuring more comfort and less pressure. Raw-cut edges are also utilised at the leg openings, with minimal silicone grippers to keep your shorts in place with minimal weight and pressure. S9 SUNDECK Seat InsertAn evolution of the EQUIPE RS insert, the S9 SUNDECK enjoys a reduction in weight for less bulk. Assos' whirlKrater system is also deployed. This uses strategically placed holes throughout the pad to boost airflow, creating a pad that minimises sweat absorption and boosts breathability. You'll also have the benefits of the standard RS pad. Shock-absorbing SuperAir microShock foam, in a 3D waffle design, is quick to return to its original form, filling gaps each time you shift weight and change position on the saddle. The waffle design meanwhile, sees the use of three-layer perforated foam to increases breathability and reduce bulk. And with goldenGate technology, the unique design allows a more natural irritation-free movement when pedalling. Features:Materials: 64% Polyamide, 9% Polyester, 27% ElastaneButterfly panel in Breezer Tex textile - ultralight woven fabric with mesh-like structureCompressive OSSIDIA warp-knit across front and rear panelsA-Lock Engineering technologyErgoBox construction stabilizes seat padZeroWaist raw cut waist transitionButterfly pattern wraps lower legs and backskinGrip finish, a raw-cut edge with minimal silicone treatment at the legsLightweight bib-strap constructionS9 SUNDECK Seat InsertBuy Assos Cycle Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.
Assos EQUIPE RSR Cycling Bib Shorts Superléger S9Created for the demands of high temperatures and high-level efforts, the Assos EQUIPE RSR Cycling Bib Shorts Superléger S9 excel when you're riding both intense indoor training sessions and during the heat of summer riding outdoors.The EQUIPE RSR Cycling Bib Shorts Superléger S9 use the platform of the standard RS and RSR Bib Shorts S9. But they've been re-engineered to boost hot-weather comfort via a lower weight, just 120grams, and enhanced ventilation. Be it an indoor race or a scorching day ascending Alpine climbs, they're the ideal choice. Low on weight. High on Ventilation.Cooler and fresher legs are made possible thanks to the application of super-light Breezer Tex. This material is deployed for the full-wrap Butterfly panel across legs and hips. This woven fabric has a mesh-like structure, enhancing the airflow to your legs while also allowing your skin to breathe. Meanwhile, all other panels use OSSIDIA warp-knit material. With a compressive fit, you'll enjoy enhanced muscle support to find off fatigue. It also has excellent abrasion resistance, giving greater durability when you're on the saddle. Meanwhile, the bib straps use a lighter elastic, reducing weight and minimising sweat absorption. A-Lock EngineeringAssos apply the same S9 A-Lock Engineering for these Superléger shorts. This compromises a two-panel design made into a unique butterfly' panel design, snugly wrapping the legs and back to create a brand new ergoBox structure. This holds the insert securely in place for an incredible feeling of support and frictionless comfort no matter how intense your efforts. With fewer seams, weight is also reduced to the minimum. At the waist, raw-cut edges give a smooth transition between body and fabric, ensuring more comfort and less pressure. Raw-cut edges are also utilised at the leg openings, with minimal silicone grippers to keep your shorts in place with minimal weight and pressure. S9 SUNDECK Seat InsertAn evolution of the EQUIPE RS insert, the S9 SUNDECK enjoys a reduction in weight for less bulk. Assos' whirlKrater system is also deployed. This uses strategically placed holes throughout the pad to boost airflow, creating a pad that minimises sweat absorption and boosts breathability. You'll also have the benefits of the standard RS pad. Shock-absorbing SuperAir microShock foam, in a 3D waffle design, is quick to return to its original form, filling gaps each time you shift weight and change position on the saddle. The waffle design meanwhile, sees the use of three-layer perforated foam to increases breathability and reduce bulk. And with goldenGate technology, the unique design allows a more natural irritation-free movement when pedalling. Features:Materials: 64% Polyamide, 9% Polyester, 27% ElastaneButterfly panel in Breezer Tex textile - ultralight woven fabric with mesh-like structureCompressive OSSIDIA warp-knit across front and rear panelsA-Lock Engineering technologyErgoBox construction stabilizes seat padZeroWaist raw cut waist transitionButterfly pattern wraps lower legs and backskinGrip finish, a raw-cut edge with minimal silicone treatment at the legsLightweight bib-strap constructionS9 SUNDECK Seat InsertBuy Assos Cycle Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.
Assos EQUIPE RSR Cycling Bib Shorts Superléger S9Created for the demands of high temperatures and high-level efforts, the Assos EQUIPE RSR Cycling Bib Shorts Superléger S9 excel when you're riding both intense indoor training sessions and during the heat of summer riding outdoors.The EQUIPE RSR Cycling Bib Shorts Superléger S9 use the platform of the standard RS and RSR Bib Shorts S9. But they've been re-engineered to boost hot-weather comfort via a lower weight, just 120grams, and enhanced ventilation. Be it an indoor race or a scorching day ascending Alpine climbs, they're the ideal choice. Low on weight. High on Ventilation.Cooler and fresher legs are made possible thanks to the application of super-light Breezer Tex. This material is deployed for the full-wrap Butterfly panel across legs and hips. This woven fabric has a mesh-like structure, enhancing the airflow to your legs while also allowing your skin to breathe. Meanwhile, all other panels use OSSIDIA warp-knit material. With a compressive fit, you'll enjoy enhanced muscle support to find off fatigue. It also has excellent abrasion resistance, giving greater durability when you're on the saddle. Meanwhile, the bib straps use a lighter elastic, reducing weight and minimising sweat absorption. A-Lock EngineeringAssos apply the same S9 A-Lock Engineering for these Superléger shorts. This compromises a two-panel design made into a unique butterfly' panel design, snugly wrapping the legs and back to create a brand new ergoBox structure. This holds the insert securely in place for an incredible feeling of support and frictionless comfort no matter how intense your efforts. With fewer seams, weight is also reduced to the minimum. At the waist, raw-cut edges give a smooth transition between body and fabric, ensuring more comfort and less pressure. Raw-cut edges are also utilised at the leg openings, with minimal silicone grippers to keep your shorts in place with minimal weight and pressure. S9 SUNDECK Seat InsertAn evolution of the EQUIPE RS insert, the S9 SUNDECK enjoys a reduction in weight for less bulk. Assos' whirlKrater system is also deployed. This uses strategically placed holes throughout the pad to boost airflow, creating a pad that minimises sweat absorption and boosts breathability. You'll also have the benefits of the standard RS pad. Shock-absorbing SuperAir microShock foam, in a 3D waffle design, is quick to return to its original form, filling gaps each time you shift weight and change position on the saddle. The waffle design meanwhile, sees the use of three-layer perforated foam to increases breathability and reduce bulk. And with goldenGate technology, the unique design allows a more natural irritation-free movement when pedalling. Features:Materials: 64% Polyamide, 9% Polyester, 27% ElastaneButterfly panel in Breezer Tex textile - ultralight woven fabric with mesh-like structureCompressive OSSIDIA warp-knit across front and rear panelsA-Lock Engineering technologyErgoBox construction stabilizes seat padZeroWaist raw cut waist transitionButterfly pattern wraps lower legs and backskinGrip finish, a raw-cut edge with minimal silicone treatment at the legsLightweight bib-strap constructionS9 SUNDECK Seat InsertBuy Assos Cycle Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.
Assos EQUIPE RSR Cycling Bib Shorts Superléger S9Created for the demands of high temperatures and high-level efforts, the Assos EQUIPE RSR Cycling Bib Shorts Superléger S9 excel when you're riding both intense indoor training sessions and during the heat of summer riding outdoors.The EQUIPE RSR Cycling Bib Shorts Superléger S9 use the platform of the standard RS and RSR Bib Shorts S9. But they've been re-engineered to boost hot-weather comfort via a lower weight, just 120grams, and enhanced ventilation. Be it an indoor race or a scorching day ascending Alpine climbs, they're the ideal choice. Low on weight. High on Ventilation.Cooler and fresher legs are made possible thanks to the application of super-light Breezer Tex. This material is deployed for the full-wrap Butterfly panel across legs and hips. This woven fabric has a mesh-like structure, enhancing the airflow to your legs while also allowing your skin to breathe. Meanwhile, all other panels use OSSIDIA warp-knit material. With a compressive fit, you'll enjoy enhanced muscle support to find off fatigue. It also has excellent abrasion resistance, giving greater durability when you're on the saddle. Meanwhile, the bib straps use a lighter elastic, reducing weight and minimising sweat absorption. A-Lock EngineeringAssos apply the same S9 A-Lock Engineering for these Superléger shorts. This compromises a two-panel design made into a unique butterfly' panel design, snugly wrapping the legs and back to create a brand new ergoBox structure. This holds the insert securely in place for an incredible feeling of support and frictionless comfort no matter how intense your efforts. With fewer seams, weight is also reduced to the minimum. At the waist, raw-cut edges give a smooth transition between body and fabric, ensuring more comfort and less pressure. Raw-cut edges are also utilised at the leg openings, with minimal silicone grippers to keep your shorts in place with minimal weight and pressure. S9 SUNDECK Seat InsertAn evolution of the EQUIPE RS insert, the S9 SUNDECK enjoys a reduction in weight for less bulk. Assos' whirlKrater system is also deployed. This uses strategically placed holes throughout the pad to boost airflow, creating a pad that minimises sweat absorption and boosts breathability. You'll also have the benefits of the standard RS pad. Shock-absorbing SuperAir microShock foam, in a 3D waffle design, is quick to return to its original form, filling gaps each time you shift weight and change position on the saddle. The waffle design meanwhile, sees the use of three-layer perforated foam to increases breathability and reduce bulk. And with goldenGate technology, the unique design allows a more natural irritation-free movement when pedalling. Features:Materials: 64% Polyamide, 9% Polyester, 27% ElastaneButterfly panel in Breezer Tex textile - ultralight woven fabric with mesh-like structureCompressive OSSIDIA warp-knit across front and rear panelsA-Lock Engineering technologyErgoBox construction stabilizes seat padZeroWaist raw cut waist transitionButterfly pattern wraps lower legs and backskinGrip finish, a raw-cut edge with minimal silicone treatment at the legsLightweight bib-strap constructionS9 SUNDECK Seat InsertBuy Assos Cycle Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.
Taking their outstanding RS and RSR Bib Shorts S9, Assos have made changes to fabrics to maintain the fabulous comfort but deliver extra helpings of ventilation alongside a reduction in weight. For hot summer days spent tackling alpine ascents or the demands of intense indoor training sessions, they're the perfect pick. Low on weight. High on Ventilation. With fewer seams used in their construction and the use of ultralight and highly breathable materials, you'll enjoy greater comfort and fresher, cooler leg muscles when the mercury rises. The full-wrap Butterfly panel is carried over from the standard S9s but here super-light Breezer Tex is deployed. This woven fabric has a mesh-like structure, allowing for enhanced airflow inwards and outstanding breathability outwards. Other front and rear panels are made in OSSIDIA warp-knit material. This provides a firm compressive hold of your key muscle groups, and thanks to excellent abrasion resistance ensure excellent durability on the saddle. Meanwhile, the bib straps use a lighter elastic, reducing weight and minimising sweat absorption. A-Lock Engineering Assos apply the same S9 A-Lock Engineering for these Superléger shorts. This compromises a two-panel design made into a unique butterfly' panel design, snugly wrapping the legs and back to create a brand new ergoBox structure. This holds the insert securely in place for an incredible feeling of support and frictionless comfort no matter how intense your efforts. At the waist, raw-cut edges give a smooth transition between body and fabric, ensuring more comfort and less pressure. Raw-cut edges are also utilised at the leg openings, with minimal silicone grippers to keep your shorts in place with minimal weight and pressure. S9 SUNDECK Seat Insert An evolution of the EQUIPE RS insert, the S9 SUNDECK enjoys a reduction in weight for less bulk. Assos' whirlKrater system is also deployed. This uses strategically placed holes throughout the pad to boost airflow, creating a pad that minimises sweat absorption and boosts breathability. You'll also have the benefits of the standard RS pad. Shock-absorbing SuperAir microShock foam, in a 3D waffle design, is quick to return to its original form, filling gaps each time you shift weight and change position on the saddle. The waffle design meanwhile, sees the use of three-layer perforated foam to increases breathability and reduce bulk. And with goldenGate technology, the unique design allows a more natural irritation-free movement when pedalling.
The Sorpasso RoS Women’s Bibtight from Castelli is made for long ride in the widest range of conditions.The tight features the ultra-stretchy, warm and water repellent Nano Flex 3G fabric. The fabric uses the third generation of Castelli’s nanotechnology fabric treatment that adds a high level of water repellency without affecting breathability, stretch or warmth. The fabric also offers a compressive fit that moves with you for all-day comfort.On the thighs and rear of the tights there are panels of Nano Flex Xtra Dry fabric to provide a bit more wind protection and warmth, as well as protection from any road spray.It’s not only about the fabrics. Anatomical patterning gives a bend at the knee and the hip, while seamless bib straps lie flat and hold the tights and seat pad perfectly in place so you can concentrate on your efforts. Multiple reflective panels keep you visible and YKK® Camlock® zippers at the ankles make for easy on and lock and a secure closure.The Bibtight uses Castelli’s women’s specific Progetto X2 Donna seat pad, ideal for long hours in the saddle. This pad features two isolated layers that work in tandem with your body and saddle to eliminate friction while still offering substantial cushioning where it’s needed most. Key Features: Nano Flex 3g fabric for the ideal mix of warmth, stretchy compression, softness and water repellency,Nano Flex Xtra Dry fabric panel on upper front and thigh for extra warmth,Anatomic cut to hips and knee,Reflective inserts for maximum visibility from behind,Lie-flat elastic bib straps,YKK® Camlock® zippers at ankles,Progetto X2 seamless Donna seat pad for long hours in the saddle,0° – 12°C / 32° – 54°F,Weight: 296g (Small).
Oakley Jawbreaker Photocromatic SunglassesJawbreaker™ is the ultimate sport design - answering the demands of world-class athletes with a 40-year heritage of uncompromising excellence.Oakley innovation has reached the pinnacle of performance by offering everything from surge ports for cooling airflow to Unobtainium® components for a comfortably secure fit, and with the hassle-free lens changing of Switchlock™ technology for vision optimisation in any setting.Features:Extended field of view in the upper peripheral region is optimised for cyclingUnobtanium® earsocks keep glasses in place, increasing grip despite perspirationSwitchlock™ interchangeable lens technology makes changing lenses fast and securePatented High Definition Optics® (HDO®) provides superior optical clarity and razor-sharp vision at every anglePlease note - Nosepads are not includedTechnologies:A field of view like never before: Oakley have utilised the latest technologies in eye tracking to find the angles of vision cyclists depend on most. That critical information led to a greatly expanded field of view for Jawbreaker, 44% larger than standard dual-lens sunglasses.Engineered for full protection: Oakley has created performance eyewear with true full-frame protection that extends around the entire lens perimeter, shielding your eyes with impact resistance without compromising the field of view or ventilation.Engineered for maximised airflow: A specially designed ventilation system optimises airflow so even when you’re pushing through stagnant air, a subtle flow helps you stay comfortable and prevents fog build-up. Vent placement keeps drafts away from your eyes to prevent distraction.Change lenses in seconds: Jawbreaker utilises the most advanced version of Oakley Switchlock™ Technology, a hassle-free interchangeable lens system. It lets you adapt your vision to the environment and helps you keep up with changing light.Adjustable stem design: To give you the best possible fit, Oakley have analysed everything from MTB and road helmets to variances in cranial anatomy. The stems adjust to three different lengths and maintain a comfortably secure grip without interfering with your helmet.Buy Oakley Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.
100% S2 Cool Grey Soft Tact SunglassesTaking their inspiration from 100%’s original pro-cycling Speedcraft model, the S2 Cool Grey Soft Tact Sunglasses which have been refined for all levels of riders.The S2 sunglasses provide the same great performance as the original Speedcraft sunglasses with a high-impact resistant, lightweight polycarbonate lens. The 5.5-base cylindrical shield lens protects your vision while providing 360-degrees of visibility. Treated with HYDROILO, the lens repels water, dirt, and oil, keeping your vision clear in adverse conditions.The durable, lightweight, and flexible TR90 half-rim frame ensures all-day comfort. Securing the sunglasses, the nose pads and temple tips are formed from ultra-grip rubber which keeps the glasses in place against sweat, environmental moisture, and during your most extreme rides.Photochromic LensLight Transmission: 16-77%The 100% Photochromic lens delivers adaptive coverage that is great in varying conditions. The lens automatically lightens and darkens dependent on your current light exposure levels.FeaturesHigh-impact resistant and lightweight polycarbonate lenses5.5-base cylindrical shield lens for increased peripheral view and protection360-degree visibility for unobstructed views and optimal field of visionInterchangeable scratch-resistant lenses provide 100% UV protectionLower air scoops to increase ventilation while reducing moisture on the lensHYDROILO lens treatment repels water, dirt, and oilDurable, flexible, and lightweight TR90 frameUltra-grip rubber nose pads and tips for a secure fit no matter how much you sweatBuy 100% Sport Sunglasses from Chain Reaction Cycles, the World's Largest Online Bike Store.
Smith Attack Max SunglassesThe Smith Attack Max Sunglasses provide reliable, comfortable, professional performance level optics for the serious sporting enthusiast who is ready to take their performance to the next level of excellence. FrameThe frame has been built for medium sized face shapes and is engineered to provide a comfortable and secure fit for long term use. The Attack Max Sunglasses comes with a two-position adjustable nose pad which allows you to get the best fit for your face shape. The temple and nose pads also come coated in hydrophilic megol rubber for an improved grip that works even under extremely wet conditions.LensesThe Attack Max Sunglasses come with an extended lens for a larger coverage and a fantastically expansive peripheral view. The lenses comes with ChromaPop technology which enables the glasses to react quicker than ever before to changing levels of light transmission. This provides you with a quick optic resolution that provides the best coverage for your current lighting conditions. The lenses are fully interchangeable and with the glasses you get an additional pair of ChromaPop Contrast Rose lenses which are built to provide increased contrast under lower light levels.FeaturesAdditional ChromaPop Contrast Rose Flash lens includedComes with custom protective caseHydroleophobic lens coatingMedium fitLarge coverageAdjustable nose padsHydrophilic megol coated temple and nose padsBuy Smith Eyewear from Chain Reaction Cycles, the World's Largest Online Bike Store.
Shimano Dura-Ace R9100 CassetteShimano's Dura-Ace R9100 Cassette has been designed to be as lightweight as possible. The cassette's sprockets are made from alloy and carbon, reducing its overall weight without compromising on durability. Featuring Hyperglide EV sprockets, which are computer-designed for ultimate performance, this cassette provides quick shifting for whatever the road throws at you. Features:Materials: Spider Arms: CFRP (Carbon Fibre Reinforced Polymer) & Alloy; Sprockets: Alloy & 5 Titanium sprockets for lightweight performanceHyperglide EV sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under loadClose ratio gearing allows more efficient use of energy through finer cadence controlLargest sprockets are mounted on lightweight alloy and carbon carriers to reduce weight and increase rigidity5 largest sprockets are made from titanium to reduce weight without sacrificing strengthSprockets are extensively cut away and drilled to further reduce weight without reducing rigidityNickel-plated finish offers hard wearing resistance to corrosionAll cassettes in the range will be compatible with the one rear derailleur so you can easily swap your cassettes out based on terrain.Alloy cassette lockringWeight: 175g (11-25T), 193g (11-28T), 211g (11-30T), 189g (12-25T), 205g (12-28T)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 Dura-Ace R9200 12 Speed CassetteThe Dura-Ace R9200 12 Speed Cassette from Shimano provides fast, smooth and seamless gear shifting performance anywhere. The Dura-Ace 12-Speed gear system is a top-level gearset, and this cassette offers a wide gear range that's reliable, efficient and lightweight.The uninterrupted shifting experience of the Dura-Ace R9200 12-speed cassette range lets you climb, sprint, and push your limits without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12-speed freehub bodies. Shimano HYPERGLIDE+ Gear Shifting PrecisionHYPERGLIDE+ cassettes have revolutionized off-road shifting with their seamless shifts both up and down the gear range. Now it's time for technology to change road cycling. Even during maximal efforts up a climb or nearing the finish line, riders no longer need to back off to perform a shift. In any gear, Dura-Ace R9250 drivetrains maximize efficiency thanks to larger cogs and retain compatibility with existing 11-speed freehub bodies. All this while increasing to 12-gears and without increasing weight, Dura-Ace CS-R9200 cassettes are the new paradigm in road shifting. Features: Series: Dura-Ace R9200 Series Faster, seamless shifts under maximum pedalling load Refined 12 step gear combination provides peak efficiency and accelerating performance for every situation Add wider 34T spec for pro-race usage Compatible with new 12-Speed and road 11-Speed Freehub body Gear Combination: 11-12-13-14-15-16-17-19-21-24-27-30T / 11-12-13-14-15-17-19-21-24-27-30-34T Type: HYPERGLIDE+ Compatible Chain: Shimano HG 12-Speed Weight: 223g (11-30T); 253g (11-34T)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.