Fizik Tempo Decos Carbon Wide Fit Road ShoesLightweight and breathable, and with a full carbon sole for efficient pedalling, the Fizik Tempo Decos Carbon Wide Fit Road Shoes are engineered for the demands of epic summer rides. A wider fit makes more space for improved comfort for wider feet. Fizik's ethos is to take a minimalist approach to design, giving you pure cycling performance without distractions. And this is certainly the case with the Tempo Decos Carbon Road Shoes. From the challenges of epic rides in mountainous terrain to the speed and thrills of races, they prioritise all-day comfort and incredible power transfer to your pedals. Wider in fit than the standard Tempo Decos, you'll find there is more room across the fore-foot, higher volume over the ball of the foot and wider metatarsal space. All this leads to greater comfort for the cyclist with a need for a wider fitting shoe.Minimalist Design. Maximum Comfort. With its smooth, supple and highly ventilated upper, the Tempo Decos Carbon Road Shoes strike a harmonious balance of comfort, breathability and low weight. The smooth upper also reduces seams, preventing chafing and giving the shoes their distinctive style. During the heat of summer, the copious vent holes also ensure you enjoy fresh feet as the kilometres fly by. BOA® Li2 Fit SystemTo give a precise and comfortable fit, the Tempo Deco uses a single Li2 BOA dial. Composite over-mould on the dial allows improved grip and input toque, making it easier than ever to tighten and loosen your shoes. With quick and easy micro-adjustment, fine-tuning the fit to your particular foot shape is now incredibly easy. The Li2 dial also has a lower profile than previous versions, marginally improving aerodynamics while also making them less vulnerable to being accidentally hit.UD Carbon OutsoleAchieving a 10 out of 10 on Fizik's stiffness scale, the UD carbon composite sole unit will ensure you surge ahead of the pack with maximum efficiency and ruthless accelerations. With your power going straight to the pedals all your hard training to get race fit isn't wasted.Fizik have also prioritised great ventilation. Airflow is channelled inside via a smooth intake vent and allowed to circulate, keeping your feet cool and fresh during the heat of long summer rides and the intensity of hard training and racing. Cleat GuidanceThese Road Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Lightweight ventilated upperWide fit - more fore-foot volume and wider space across metatarsalsUD Carbon Outsole - Rated 10/10 on the Fizik stiffness scaleSole vents for improved airflowRecessed cleats positioningBOA® Li2 single-dial Fit System and FizikBi-Directional adjustment with composite over-mould for better grip and higher input torque3-bolt cleat compatible (cleats not supplied)Buy Fizik Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Tempo Decos Carbon Wide Fit Road ShoesLightweight and breathable, and with a full carbon sole for efficient pedalling, the Fizik Tempo Decos Carbon Wide Fit Road Shoes are engineered for the demands of epic summer rides. A wider fit makes more space for improved comfort for wider feet. Fizik's ethos is to take a minimalist approach to design, giving you pure cycling performance without distractions. And this is certainly the case with the Tempo Decos Carbon Road Shoes. From the challenges of epic rides in mountainous terrain to the speed and thrills of races, they prioritise all-day comfort and incredible power transfer to your pedals. Wider in fit than the standard Tempo Decos, you'll find there is more room across the fore-foot, higher volume over the ball of the foot and wider metatarsal space. All this leads to greater comfort for the cyclist with a need for a wider fitting shoe.Minimalist Design. Maximum Comfort. With its smooth, supple and highly ventilated upper, the Tempo Decos Carbon Road Shoes strike a harmonious balance of comfort, breathability and low weight. The smooth upper also reduces seams, preventing chafing and giving the shoes their distinctive style. During the heat of summer, the copious vent holes also ensure you enjoy fresh feet as the kilometres fly by. BOA® Li2 Fit SystemTo give a precise and comfortable fit, the Tempo Deco uses a single Li2 BOA dial. Composite over-mould on the dial allows improved grip and input toque, making it easier than ever to tighten and loosen your shoes. With quick and easy micro-adjustment, fine-tuning the fit to your particular foot shape is now incredibly easy. The Li2 dial also has a lower profile than previous versions, marginally improving aerodynamics while also making them less vulnerable to being accidentally hit.UD Carbon OutsoleAchieving a 10 out of 10 on Fizik's stiffness scale, the UD carbon composite sole unit will ensure you surge ahead of the pack with maximum efficiency and ruthless accelerations. With your power going straight to the pedals all your hard training to get race fit isn't wasted.Fizik have also prioritised great ventilation. Airflow is channelled inside via a smooth intake vent and allowed to circulate, keeping your feet cool and fresh during the heat of long summer rides and the intensity of hard training and racing. Cleat GuidanceThese Road Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Lightweight ventilated upperWide fit - more fore-foot volume and wider space across metatarsalsUD Carbon Outsole - Rated 10/10 on the Fizik stiffness scaleSole vents for improved airflowRecessed cleats positioningBOA® Li2 single-dial Fit System and FizikBi-Directional adjustment with composite over-mould for better grip and higher input torque3-bolt cleat compatible (cleats not supplied)Buy Fizik Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Tempo Decos Carbon Road ShoesFizik have engineered the Tempo Decos Carbon Road Shoes to be lightweight, comfortable and deliver uncompromised power transfer. A BOA® dial, supple upper and stiff carbon sole all combine to great effect, giving pedalling performance you'll love. Fizik's ethos is to take a minimalist approach to design, giving you pure cycling performance without distractions. And this is certainly the case with the Tempo Decos Carbon Road Shoes. From the challenges of epic rides in mountainous terrain to the speed and thrills of races, they prioritise all-day comfort and incredible power transfer to your pedals. Minimalist Design. Maximum Comfort. With its smooth, supple and highly ventilated upper, the Tempo Decos Carbon Road Shoes strike a harmonious balance of comfort, breathability and low weight. The smooth upper also reduces seams, preventing chafing and giving the shoes their distinctive style. During the heat of summer, the copious vent holes also ensure you enjoy fresh feet as the kilometres fly by. BOA® Li2 Fit SystemTo give a precise and comfortable fit, the Tempo Deco uses a single Li2 BOA dial. Composite over-mould on the dial allows improved grip and input toque, making it easier than ever to tighten and loosen your shoes. With quick and easy micro-adjustment, fine-tuning the fit to your particular foot shape is now incredibly easy. The Li2 dial also has a lower profile than previous versions, marginally improving aerodynamics while also making them less vulnerable to being accidentally hit.UD Carbon OutsoleAchieving a 10 out of 10 on Fizik's stiffness scale, the UD carbon composite sole unit will ensure you surge ahead of the pack with maximum efficiency and ruthless accelerations. With your power going straight to the pedals all your hard training to get race fit isn't wasted.Fizik have also prioritised great ventilation. Airflow is channelled inside via a smooth intake vent and allowed to circulate, keeping your feet cool and fresh during the heat of long summer rides and the intensity of hard training and racing. Cleat GuidanceThese Road Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Lightweight and highly ventilated upperUD Carbon Outsole - Rated 10/10 on the Fizik stiffness scaleSole vents for improved airflowRecessed cleats positioningBOA® Li2 single-dial Fit SystemBi-Directional adjustment with composite over-mould for better grip and higher input torque3-bolt cleat compatible (cleats not supplied)Buy Fizik Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Tempo Decos Carbon Road ShoesFizik have engineered the Tempo Decos Carbon Road Shoes to be lightweight, comfortable and deliver uncompromised power transfer. A BOA® dial, supple upper and stiff carbon sole all combine to great effect, giving pedalling performance you'll love. Fizik's ethos is to take a minimalist approach to design, giving you pure cycling performance without distractions. And this is certainly the case with the Tempo Decos Carbon Road Shoes. From the challenges of epic rides in mountainous terrain to the speed and thrills of races, they prioritise all-day comfort and incredible power transfer to your pedals. Minimalist Design. Maximum Comfort. With its smooth, supple and highly ventilated upper, the Tempo Decos Carbon Road Shoes strike a harmonious balance of comfort, breathability and low weight. The smooth upper also reduces seams, preventing chafing and giving the shoes their distinctive style. During the heat of summer, the copious vent holes also ensure you enjoy fresh feet as the kilometres fly by. BOA® Li2 Fit SystemTo give a precise and comfortable fit, the Tempo Deco uses a single Li2 BOA dial. Composite over-mould on the dial allows improved grip and input toque, making it easier than ever to tighten and loosen your shoes. With quick and easy micro-adjustment, fine-tuning the fit to your particular foot shape is now incredibly easy. The Li2 dial also has a lower profile than previous versions, marginally improving aerodynamics while also making them less vulnerable to being accidentally hit.UD Carbon OutsoleAchieving a 10 out of 10 on Fizik's stiffness scale, the UD carbon composite sole unit will ensure you surge ahead of the pack with maximum efficiency and ruthless accelerations. With your power going straight to the pedals all your hard training to get race fit isn't wasted.Fizik have also prioritised great ventilation. Airflow is channelled inside via a smooth intake vent and allowed to circulate, keeping your feet cool and fresh during the heat of long summer rides and the intensity of hard training and racing. Cleat GuidanceThese Road Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Lightweight and highly ventilated upperUD Carbon Outsole - Rated 10/10 on the Fizik stiffness scaleSole vents for improved airflowRecessed cleats positioningBOA® Li2 single-dial Fit SystemBi-Directional adjustment with composite over-mould for better grip and higher input torque3-bolt cleat compatible (cleats not supplied)Buy Fizik Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Tempo R5 Powerstrap Road ShoesIt’s all about the tempo of your ride! Fizik ensures setting the pace is the way forward with their Tempo R5 Powerstrap Road Shoes, an innovative performer that won’t break the bank in your search for a versatile pedalling companion.An All-round PerformerCapable of tackling your ride no matter what your experience entails, the Tempo R5 Powerstrap Road Shoes have been designed and engineered for variety, taking riders from the smoothest of tarmac to the most demanding pavements. To ensure control and power when riding over different surfaces Fizik have incorporated their R5 nylon composite outsole. It balances out your ability to set the pace by directly transferring power immediately to the pedals. Turning the most causal of cadences into an explosive burst, riders can up the ante and head up the road quickly. Supple, the outsole is ever so lightweight and makes long distances easier than ever.Unrivalled ComfortYou’re not dreaming, the unrivalled comfort of the Tempo R5 Powerstrap Road Shoes really does fit into their impressive price tag. The powerstrap wraps Velcro across the foot to offer up an impressive closure system and pulls together both sides of the upper. Eliminating laces, the foot is hugged with comfort and the fitting can easily be adjusted thanks to the brand’s volume control. This adjusts the instep and midfoot to your liking in order to hit the perfect balance between compression and customisation.Features:TEMPO: Versatility road series designed for the most enjoyable riding experienceROAD: Designed and engineered to perform on paved roads, from the smoothest tarmac to the most demanding pavePowerstrap: foot-wrapping Velcro closure designed for an enveloping fitR5 nylon composite outsole: delivers balance between comfort and pedalling efficiencyR5 outsole - carbon reinforced nylonApproximate weight: 250g (size 42 - 1/2 pair)Buy Fizik from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Tempo R5 Powerstrap Road ShoesIt’s all about the tempo of your ride! Fizik ensures setting the pace is the way forward with their Tempo R5 Powerstrap Road Shoes, an innovative performer that won’t break the bank in your search for a versatile pedalling companion.An All-round PerformerCapable of tackling your ride no matter what your experience entails, the Tempo R5 Powerstrap Road Shoes have been designed and engineered for variety, taking riders from the smoothest of tarmac to the most demanding pavements. To ensure control and power when riding over different surfaces Fizik have incorporated their R5 nylon composite outsole. It balances out your ability to set the pace by directly transferring power immediately to the pedals. Turning the most causal of cadences into an explosive burst, riders can up the ante and head up the road quickly. Supple, the outsole is ever so lightweight and makes long distances easier than ever.Unrivalled ComfortYou’re not dreaming, the unrivalled comfort of the Tempo R5 Powerstrap Road Shoes really does fit into their impressive price tag. The powerstrap wraps Velcro across the foot to offer up an impressive closure system and pulls together both sides of the upper. Eliminating laces, the foot is hugged with comfort and the fitting can easily be adjusted thanks to the brand’s volume control. This adjusts the instep and midfoot to your liking in order to hit the perfect balance between compression and customisation.Features:TEMPO: Versatility road series designed for the most enjoyable riding experienceROAD: Designed and engineered to perform on paved roads, from the smoothest tarmac to the most demanding pavePowerstrap: foot-wrapping Velcro closure designed for an enveloping fitR5 nylon composite outsole: delivers balance between comfort and pedalling efficiencyR5 outsole - carbon reinforced nylonApproximate weight: 250g (size 42 - 1/2 pair)Buy Fizik from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Tempo R5 Powerstrap Road ShoesIt’s all about the tempo of your ride! Fizik ensures setting the pace is the way forward with their Tempo R5 Powerstrap Road Shoes, an innovative performer that won’t break the bank in your search for a versatile pedalling companion.An All-round PerformerCapable of tackling your ride no matter what your experience entails, the Tempo R5 Powerstrap Road Shoes have been designed and engineered for variety, taking riders from the smoothest of tarmac to the most demanding pavements. To ensure control and power when riding over different surfaces Fizik have incorporated their R5 nylon composite outsole. It balances out your ability to set the pace by directly transferring power immediately to the pedals. Turning the most causal of cadences into an explosive burst, riders can up the ante and head up the road quickly. Supple, the outsole is ever so lightweight and makes long distances easier than ever.Unrivalled ComfortYou’re not dreaming, the unrivalled comfort of the Tempo R5 Powerstrap Road Shoes really does fit into their impressive price tag. The powerstrap wraps Velcro across the foot to offer up an impressive closure system and pulls together both sides of the upper. Eliminating laces, the foot is hugged with comfort and the fitting can easily be adjusted thanks to the brand’s volume control. This adjusts the instep and midfoot to your liking in order to hit the perfect balance between compression and customisation.Features:TEMPO: Versatility road series designed for the most enjoyable riding experienceROAD: Designed and engineered to perform on paved roads, from the smoothest tarmac to the most demanding pavePowerstrap: foot-wrapping Velcro closure designed for an enveloping fitR5 nylon composite outsole: delivers balance between comfort and pedalling efficiencyR5 outsole - carbon reinforced nylonApproximate weight: 250g (size 42 - 1/2 pair)Buy Fizik from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Tempo R5 Powerstrap Road ShoesIt’s all about the tempo of your ride! Fizik ensures setting the pace is the way forward with their Tempo R5 Powerstrap Road Shoes, an innovative performer that won’t break the bank in your search for a versatile pedalling companion.An All-round PerformerCapable of tackling your ride no matter what your experience entails, the Tempo R5 Powerstrap Road Shoes have been designed and engineered for variety, taking riders from the smoothest of tarmac to the most demanding pavements. To ensure control and power when riding over different surfaces Fizik have incorporated their R5 nylon composite outsole. It balances out your ability to set the pace by directly transferring power immediately to the pedals. Turning the most causal of cadences into an explosive burst, riders can up the ante and head up the road quickly. Supple, the outsole is ever so lightweight and makes long distances easier than ever.Unrivalled ComfortYou’re not dreaming, the unrivalled comfort of the Tempo R5 Powerstrap Road Shoes really does fit into their impressive price tag. The powerstrap wraps Velcro across the foot to offer up an impressive closure system and pulls together both sides of the upper. Eliminating laces, the foot is hugged with comfort and the fitting can easily be adjusted thanks to the brand’s volume control. This adjusts the instep and midfoot to your liking in order to hit the perfect balance between compression and customisation.Features:TEMPO: Versatility road series designed for the most enjoyable riding experienceROAD: Designed and engineered to perform on paved roads, from the smoothest tarmac to the most demanding pavePowerstrap: foot-wrapping Velcro closure designed for an enveloping fitR5 nylon composite outsole: delivers balance between comfort and pedalling efficiencyR5 outsole - carbon reinforced nylonApproximate weight: 250g (size 42 - 1/2 pair)Buy Fizik from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Vento Overcurve X3 Off-Road ShoesThe Fizik Vento Overcurve X3 MTB Shoes have been created to deliver efficient performance for the XC mountain bike and cyclocross racer. A sleek style, precise fit and stiff sole let you push your performance to new heights. The Vento Overcurve X3 Mountain Bike Shoes are made from a Microtex upper giving a supple and consistent fit to hug the foot comfortably. Extensive use of welding and laminated reinforcements reduces stitching and enhances durability with fewer places for dirt to collect. Not only that, they're easy to wipe clean after a particularly muddy ride.Overcurve ConstructionComfort and a secure foothold are provided by the way of Fizik's Overcurve construction - this uses a staggered collar to wrap around the ankle and traces the natural misalignment of the two bony protrusions in the lateral and medial malleoli. Offering riders an asymmetrical shape, the shoe curves over the foot to wrap it snugly and securely and guides all the way from the outside to the inner for one of the finest fits possible. To provide a quick and simple closure Fizik uses s the Boa® IP1-B dial system - just twist and go.X3 OutsoleWhether you're racing or simply speeding around local trails, the lightweight X3 carbon-injected nylon Outsole provides the stiffness you demand, delivering uncompromised efficiency and direct power transfer to the pedals. Finished with an aggressive tread pattern and lugs the sole unit is also brilliant at gripping loose dirt when you're off the bike and it'll shed mud for easy clipping in.Features:Overcurve: asymmetrical construction that ergonomically conforms to the foot's anatomyMicrotex upper: supple yet strong and durable for a comfortable and consistent fitX3 outsole: a carbon injected race-stiff interface with a durable TPU treadBoa® IP1-B dialX3 outsole - carbon injected nylon with TPU treadWeight: 288g (size 42- 1/2 pair)Buy Fizik from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Tempo Overcurve R4 Road ShoesSleek and stealthy style meets road-crushing power transfer in Fizik's Tempo Overcurve R4 Road Shoe. Stiff, light and supremely comfortable, they'll let you conquer any training session and get you to the finish line with ruthless race-winning efficiency.Sleek and stylish design meets high-performance features, making the Tempo Overcurve R4 Cycling Shoes perfect for the modern cyclist no matter what discipline of road riding you enjoy, from track to crit circuit to road race to epic all-day adventures.Overcurve ConstructionComfort and a secure foothold are provided by the way of Fizik's Overcurve construction - this uses a staggered collar to wrap around the ankle and traces the natural misalignment of the two bony protrusions in the lateral and medial malleoli. Offering riders an asymmetrical shape, the shoe curves over the foot to wrap it snugly and securely and guides all the way from the outside to the inner for one of the finest fits possible. To provide a quick and simple closure Fizik uses s the Boa® IP1-B dial system - just twist and go.R4 OutsoleThe carbon-injected nylon R4 Outsole achieves the perfect level of stiffness to balance the demands of pedalling efficiency while maintaining comfort over longer distances. Ventilation is also optimised with internal channelling maintaining a stable foot temperature and the cleat position allows for aggressive aero positions.Features:Outsole: R4 outsole - carbon injected nylon, stiffness index 7Overcurve: asymmetrical construction that ergonomically conforms to the foot's anatomyBoa® IP1-B dialPU laminated mesh upper: enhanced ventilation with support where needed3-bolt cleat compatibleWeight: 230g (size 42- 1/2 pair)Buy Fizik from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Vento Infinito Knit Carbon 2 Road ShoesLight and highly ventilated, the Fizik Vento Infinito Knit Carbon 2 Road Shoes give unrivalled comfort on the bike. And with a super-stiff carbon sole, you'll enjoy outstanding performance as you sprint for the finish line.Featherweight Knitted UpperThe Vento Infinito Knit Carbon 2 Road Shoes have been raced and proven their performance in the heat of the pro-peloton. This iteration has seen further improvements to the already outstanding knitted upper. It's now lighter than ever with improved ventilation too. Just as before the design allows for outstanding breathability, with ventilation zones integrated seamlessly into the upper.Fizik have stripped away more weight from Vento but have retained the same fabulous foot support. The knit system, with heat-fused TPU yarns, offers foot support just where you need it most, and less bulk where you don't. This gives you just the same pedalling efficiency and foot support you'd expect of a traditional cycling shoe but with less weight and more ventilation. A win-win situation. Customised Fit - BOA Fit SystemTo give a customisable and comfortable fit, the Vento uses the dual Li2 BOA fit system. The Li2 dials have been redesigned to offer a lower profile, marginally improving aerodynamics while also making them less vulnerable to being accidentally hit. Each dial gives quick and easy micro-adjustment, with independent adjustment of the forefoot and instep. Fine-tuning the fit to your particular foot shape is now remarkably easy. R2 Carbon OutsoleThe stiffest and lightest sole unit in the Fizik range, R2 Carbon Outsole delivers incredible responsiveness, with power transferred to your pedals with outstanding efficiency. Jump for a sprint or attack a climb and you're rewarded with immediate acceleration - only fitness is holding you back.Efficient pedalling is also optimised thanks to the cleat track position. This has been set further rearwards to improve pedalling dynamics, reduce knee compression and power transfer - it's especially well-suited to very aggressive, forward aero riding positions.Cleat GuidanceThese Cycling Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Knitted PU laminated mesh upperLi2 Dual Zone BOA Fit SystemIndependent fit adjustment for instep and forefootDynamic Arch Support 2.0: tailored fit of the plantar archR2 carbon outsole - full carbon unidirectional, stiffness index 10/103-bolt cleat compatible (cleats not supplied)Weight: 225g (size 42 - 1/2 pair)Buy Fizik Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fizik Tempo Overcurve R4 Wide Fit Road ShoesThe Fizik Tempo Overcurve R4 Wide Fit Road Shoes deliver the same outstanding comfort and superb pedalling efficiency as the standard-fit shoes but with extra volume for those of you who need some extra space for wider feet. Sleek and stylish design meets high-performance features, making the Tempo Overcurve R4 Wide Fit Road Shoes perfect for the modern cyclist no matter what discipline of road riding you enjoy, from track to crit circuit to road race to epic all-day adventures. This wide-fit adds extra volume to the shoe, with more room offered at the forefoot around the ball of the foot and metatarsals.Overcurve ConstructionComfort and a secure foothold are provided by the way of Fizik's Overcurve construction - this uses a staggered collar to wrap around the ankle and traces the natural misalignment of the two bony protrusions in the lateral and medial malleoli. Offering riders an asymmetrical shape, the shoe curves over the foot to wrap it snugly and securely and guides all the way from the outside to the inner for one of the finest fits possible. To provide a quick and simple closure Fizik uses s the Boa® IP1-B dial system - just twist and go.R4 OutsoleThe carbon-injected nylon R4 Outsole achieves the perfect level of stiffness to balance the demands of pedalling efficiency while maintaining comfort over longer distances. Ventilation is also optimised with internal channelling maintaining a stable foot temperature and the cleat position allows for aggressive aero positions.Features:Outsole: R4 outsole - carbon injected nylon, stiffness index 7Overcurve: asymmetrical construction that ergonomically conforms to the foot's anatomyBoa® IP1-B dialPU laminated mesh upper: enhanced ventilation with support where needed3-bolt cleat compatibleWeight: 232g (size 42- 1/2 pair)Buy Fizik Footwear from Chain Reaction Cycles, the World's Largest Online Bike Store.