Spank SPANK 359/350 Vibrocore WheelsetThis fine-tuned wheelset has been developed  for World Cup DH racing and features stabilising Vibrocore technology for increased rider comfort and torsional strength. The rims feature unique profiles for an enhanced radial compliance and a lower weight on the front wheel. Plus, the massive 35mm outer width on each rim allows for a huge boost to traction stability, whether riding uphill or down.Durable 3-Cross Spoke PatternThis Spike hubset holds each J-hook spoke tight in a 3-cross pattern for increased downhill durability and impact absorption. Plus, each wheel includes BeadBite anti-burp hooks, which holds each tyre tight to the rim for a secure, comfortable riding experience.Features:  Rim: Alloy Clincher (Tubeless Ready)  Rim Width: 30.5mm (inner), 35mm (outer)  Spokes: J-Hook, triple-butted, 32H, 3-Cross Lacing  Nipples: Brass  Hubset: Spike  Weight: 2.2kg (27.5), 2.26kg (29)Technology:  Vibrocore: Vibrocore technology is injected into Spank Vibrocore products and dramatically reduces vibrations that can lead to hand and arm numbness, fatigue and arm-pump. This additional technology also increases overall stiffness and fatigue life of the product. Vibrocore is one of the biggest innovations in Rim technology as it increases the radial compliancy, lateral stiffness and torsional strength while also damping vibrations from the trail.  OohBah: The unique OohBah profile allows Spank to manufacture thinner-walled, wider-profiled, lighter rims without sacrificing strength or rigidity. Wider rims mean stiffer wheels and more tire spread, leading to greater traction and improved comfort, and tire performance. The wave shape of the OohBah inner tube adds strength and support to the vertical rim flange walls and prevent buckling. Normal straight or curved tube wells must be much thicker, and by default heavier, to offer the same support.  BeadBite: At an incredible range of pressures, BeadBite is the solution to keeping your tires burp free and fixed in place. BeadBite rim technology enhances tubeless use with tires of all types and with a greater range of air pressures. BeadBite rims have 6 rows of tiny ridges that run along the vertical and horizontal faces of the bead seats. These tiny teeth create air seals between the rim and tire as the bead conforms into them under air pressure. They dramatically increase frictional forces on the tire bead, reducing the beads' ability to move vertically or horizontally (thus improving tire stability and reducing burps). The bead literally becomes trapped between the vertical and horizontal ridges, even at very low air pressures. Even in tubed applications, BeadBite rims tend to allow much lower air pressures with reduced risk of pinch flats.Buy Spank Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

?Paire de roues Mavic Ksyrium Pro SL T (carbone, disque)Optimisée pour les coureurs d'endurance d'aujourd'hui, cette impressionnante paire de roues de Mavic présente un profil de frein à disque, une hauteur de jante de 25 mm et une construction en carbone qui vous permettrons de rouler jusqu'à ce que vous ne puissiez plus les suivre. Très résistantes pour un poids impressionnant, chacun des modèles Ksyrium se caractérise par un design à 24 rayons, assurant ainsi une performance souple et solide à chaque sortie. Roues d'endurance haut de gamme en carboneL'arrière est équipé d'un moyeu libre Instant Drive 360 à engagement rapide pour limiter au maximum l'effort dans les montées et les accélérations. Adaptée aux pneus à boyaux, cette fantastique paire de roues de route Mavic est prête à vous emmener jusqu'à la ligne d'arrivée et à battre votre record personnel avec puissance et assurance. Caractéristiques :Matériau de jante : Carbone 3KMatériau de l'axe : aluminium, avec roulements à cartouche étanchesHauteur de la jante : 25 mmType de pneu : boyauRoue libre : Instant Drive 360Rayons : 24 x droits, plat, double section, avant : croisés double ; arrière : IsopulseCompatible avec un frein à disque  : ouiPoids : 1,32 kg Achetez vos roues et &pneus Mavic sur Chain Reaction Cycles, le plus grand magasin de vélo en ligne au monde.

Sun Ringle Duroc 30 Expert Front WheelSun Ringle's Duroc 30 is the perfect all-rounder - a lightweight and durable front wheel that doesn't compromise on speed. It sports a 30mm wide rim that gives great traction for building speed on the climb, while a hand-welded aluminium construction allows for excellent aerodynamics and sturdiness to help give you an advantage on the downhill.Optimised Spokes for Extra DurabilityIncluded in this front wheel is Sun Ringle's SRC hubset, which features optimised flange diameters for balanced spoke tension and an oversized rear axle, affording it greater durability and ride smoothness.Features: Use: XC/Trail Spoke Count: 28 Rim Material: Aluminium Rim Joint: Welded Rim Width: 30mm outer, 26mm inner Hub: SUNringle SRX Weight: 843g (27.5in), 868g (29in) Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 30 Expert Front WheelSun Ringle's Duroc 30 is the perfect all-rounder - a lightweight and durable front wheel that doesn't compromise on speed. It sports a 30mm wide rim that gives great traction for building speed on the climb, while a hand-welded aluminium construction allows for excellent aerodynamics and sturdiness to help give you an advantage on the downhill.Optimised Spokes for Extra DurabilityIncluded in this front wheel is Sun Ringle's SRC hubset, which features optimised flange diameters for balanced spoke tension and an oversized rear axle, affording it greater durability and ride smoothness.Features: Use: XC/Trail Spoke Count: 28 Rim Material: Aluminium Rim Joint: Welded Rim Width: 30mm outer, 26mm inner Hub: SUNringle SRX Weight: 843g (27.5in), 868g (29in) Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 30 Expert Front Wheel BOOSTThis Duroc 30 front wheel was designed to offer durability and high performance on the trail while retaining an affordable price point. The aluminium rim features a 30mm wide outer width for excellent traction, allowing your bike to scale climbs with ease. Plus, the rim's hand-welded aluminium construction keeps this wheel stiff for reliable control.Boost-Ready SRC HubThe included SRC hub uses a larger boost axle to give this wheel increased strength and spoke durability, perfect for the rigours of cross-country and trail riding.Features: Material: Aluminium Rim Technology: SUNringlè Tubeless Ready (tape installed, valves sold separately) Outer Rim Width: 30mm Inner Bead Width: 26mm Usage: XC/Trail Rim Joint: Welded Spokes: Wheelsmith Straight Pull DB14 Spoke Hole Count: 28H Hubs: SUNringlé SRX Hub Spacing: 110x15mm Weight: 918gBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 30 Expert Rear WheelLightweight and durable, Sun Ringle's Duroc 30 is an excellent all-rounder mountain bike wheel that's perfect for cross-country and trail. Sporting a 30mm wide rim that lowers rolling resistance for a smoother uphill climb, its hand-welded aluminium construction also ensures its strong enough to endure heavy impacts.SRC Hubset IncludedThis rear wheel also features Sun Ringle's SRC hubset, which fully optimises spoke tension to offer extra durability and a responsive power transfer.Features: Use: XC/Trail Spoke Count: 28 Rim Material: Aluminium Rim Joint: Welded Rim Width: 30mm outer, 26mm inner Hub: SUNringle SRX Weight: 943g (27.5in), 968g (29in) Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 30 Expert Rear WheelLightweight and durable, Sun Ringle's Duroc 30 is an excellent all-rounder mountain bike wheel that's perfect for cross-country and trail. Sporting a 30mm wide rim that lowers rolling resistance for a smoother uphill climb, its hand-welded aluminium construction also ensures its strong enough to endure heavy impacts.SRC Hubset IncludedThis rear wheel also features Sun Ringle's SRC hubset, which fully optimises spoke tension to offer extra durability and a responsive power transfer.Features: Use: XC/Trail Spoke Count: 28 Rim Material: Aluminium Rim Joint: Welded Rim Width: 30mm outer, 26mm inner Hub: SUNringle SRX Weight: 943g (27.5in), 968g (29in) Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 30 Expert Rear Wheel BOOSTIf you're looking for an affordable mountain bike rear wheel built to endure punishment, then look no further than Sun Ringle's Duroc range. The Duroc 30 features a wide 30mm rim for excellent traction and stability and features a hand-welded aluminium construction for endurance on any rough terrain.Perfect for Boost Thru-Axle Set-upsIf you want to make a big splash on the trail, this rear wheel comes boost-ready with its wider thru-axle that gives your bike a lateral stiffness that ensures improved stability. Plus, the included SRC alloy hub optimises the spoke tension for a better power transfer and stronger durability.Features:  Use: XC/Trail  Spoke Count: 28  Rim Material: Aluminium  Rim Joint: Welded  Rim Width: 30mm outer, 26mm inner  Hub: SUNringle SRX  Weight: 943g (27.5in), 968g (29in)  Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 30 Expert Rear Wheel BOOSTIf you're looking for an affordable mountain bike rear wheel built to endure punishment, then look no further than Sun Ringle's Duroc range. The Duroc 30 features a wide 30mm rim for excellent traction and stability and features a hand-welded aluminium construction for endurance on any rough terrain.Perfect for Boost Thru-Axle Set-upsIf you want to make a big splash on the trail, this rear wheel comes boost-ready with its wider thru-axle that gives your bike a lateral stiffness that ensures improved stability. Plus, the included SRC alloy hub optimises the spoke tension for a better power transfer and stronger durability.Features:  Use: XC/Trail  Spoke Count: 28  Rim Material: Aluminium  Rim Joint: Welded  Rim Width: 30mm outer, 26mm inner  Hub: SUNringle SRX  Weight: 943g (27.5in), 968g (29in)  Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 35 Expert Front WheelSun Ringle is known for its ability to create excellent professional mountain bike wheels at an affordable price, and it has done so again with the Duroc 35. This front wheel features a hand-welded aluminium rim which offers incredible durability while remaining lightweight, and its 35mm width offers additional traction for those tough uphill climbs.Hubset Optimised for PerformanceThis front wheel also includes Sun Ringle's SRC hubset, which with its balanced approach to spoke tension and its oversized rear axle, is optimised to offer additional durability and power transfer.Features:  Use: Trail/AM  Spoke Count: 28  Rim Material: Aluminium  Rim Joint: Welded  Rim Width: 35mm outer, 31mm inner  Hub: SUNringle SRX  Weight: 898g (27.5in), 918g (29in)  Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 35 Expert Front Wheel BOOSTThe Duroc 35 is a great example of Sun Ringle's commitment to making professional quality mountain bike wheels at an affordable price point. This front wheel features a hand-welded aluminium rim to ensure durability while keeping it lightweight, and with a 35mm width, it also offers excellent traction for lower rolling resistance.Excellent Lightweight Hub and Boost-ReadyThis wheel also features wider hub spacing for boost thru-axles, granting greater lateral stiffness for increased stability and ride smoothness. Plus, the included SRC hubset optimises spoke tension to allow for greater durability against heavy impacts.Features: Use: Trail/AM Spoke Count: 28 Rim Material: Aluminium Rim Joint: Welded Rim Width: 35mm outer, 31mm inner Hub: SUNringle SRX Weight: 898g (27.5in), 918g (29in) Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 35 Expert Rear Wheel BOOSTIf you're looking for a quality mountain bike wheel at a reasonable price, Sun Ringle's Duroc 35 is the perfect choice for you. The wide 35mm rim allows for better ground contact and stability, and its hand-welded aluminium construction means it remains lightweight while still being capable of enduring some serious punishment.Boost-Ready for Better PerformanceThe Duroc 35 also features a wide hub spacing for boost thru-axles, allowing for greater lateral stiffness. Combined with the included SRC alloy hub, which optimises spoke tension for a greater power transfer, and you have a rear wheel that gives you an advantage even on the toughest trails.Features: Use: Trail, All Mountain Spoke Count: 28 Rim Material: Aluminium Rim Joint: Welded Rim Width: 35mm outer, 31mm inner Hub: SUNringle SRX Weight: 998g (27.5in), 1018g (29in) Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 35 Expert Rear Wheel BOOSTIf you're looking for a quality mountain bike wheel at a reasonable price, Sun Ringle's Duroc 35 is the perfect choice for you. The wide 35mm rim allows for better ground contact and stability, and its hand-welded aluminium construction means it remains lightweight while still being capable of enduring some serious punishment.Boost-Ready for Better PerformanceThe Duroc 35 also features a wide hub spacing for boost thru-axles, allowing for greater lateral stiffness. Combined with the included SRC alloy hub, which optimises spoke tension for a greater power transfer, and you have a rear wheel that gives you an advantage even on the toughest trails.Features: Use: Trail, All Mountain Spoke Count: 28 Rim Material: Aluminium Rim Joint: Welded Rim Width: 35mm outer, 31mm inner Hub: SUNringle SRX Weight: 998g (27.5in), 1018g (29in) Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 50 Expert Front Wheel BOOSTIf you're looking for a mountain bike wheel that provides a smooth ride even on the toughest trails, look no further than Sun Ringle's Duroc 50. This front wheel features a hand-welded aluminium rim that allows it to endure serious punishment without wavering on performance or speed. Additionally, the rim's 50mm width allows this wheel to maximise traction so you can climb the sharpest inclines with ease.Boost-Ready with a Durable, Lightweight HubThis front wheel also features wider hub spacing for boost thru-axles to allow for greater lateral stiffness. Plus, the included SRC hubset utilises a wider approach to flange diameters, meaning each spoke has  enough give to keep performing even after heavy impacts.Features:  Use: Trail/AM  Spoke Count: 28  Rim Material: Aluminium  Rim Joint: Welded  Rim Width: 40mm outer, 36mm inner  Hub: SUNringle SRX  Weight: 918g (27.5in), 953g (29in)  Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 50 Expert Rear Wheel BOOSTIf you need an extra-durable rear wheel to make even the most trecherous mountain climb feel comfortable, Sun Ringle's Duroc 50 should be the choice for you. This wheel features a 50mm extra-wide rim for excellent traction that helps ease uphill climbs and lower rolling resistance. Additionally, its hand-welded aluminium construction keeps your bike feeling lightweight and easy to control.Boost-Ready for Maximum Ride SmoothnessThis rear wheel features a wider hub spacing for boost thru-axles, which allow for greater lateral stiffness and improved stability. The included SRC alloy hub also optimises spoke tension for a greater power transfer.Features: Use: Plus Spoke Count: 28 Rim Material: Aluminium Rim Joint: Welded Rim Width: 50mm outer, 36mm inner Hub: SUNringle SRX Weight: 1118g (27.5in), 1153g (29in) Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Sun Ringle Duroc 50 Expert Rear Wheel BOOSTIf you need an extra-durable rear wheel to make even the most trecherous mountain climb feel comfortable, Sun Ringle's Duroc 50 should be the choice for you. This wheel features a 50mm extra-wide rim for excellent traction that helps ease uphill climbs and lower rolling resistance. Additionally, its hand-welded aluminium construction keeps your bike feeling lightweight and easy to control.Boost-Ready for Maximum Ride SmoothnessThis rear wheel features a wider hub spacing for boost thru-axles, which allow for greater lateral stiffness and improved stability. The included SRC alloy hub also optimises spoke tension for a greater power transfer.Features: Use: Plus Spoke Count: 28 Rim Material: Aluminium Rim Joint: Welded Rim Width: 50mm outer, 36mm inner Hub: SUNringle SRX Weight: 1118g (27.5in), 1153g (29in) Tubeless ReadyBuy Sun Ringle Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Fulcrum Racing 3 Disc Brake WheelsetWhen designing this Racing 3 wheelset, the guiding principle at Fulcrum was “versatility”. Whether you are training for your next big race or just looking for a pair of wheels that can keep up with your own adventurous tastes, this disc-brake compatible wheelset is versatile enough to do whatever you need it too.  Advanced Rim Design  Each element of the rim design has been tweaked to give you more from this wheelset. The material construction uses the highest strength aluminium available, alloy 6082, to ensure durability while remaining lightweight. A rim width of 23.8mm allows for greater traction to make each uphill climb that little bit easier. Fulcrum’s “Rim Dynamic Balance” technique even ensures that the added weight of the gasket has been balanced on the opposite side to give the wheel greater control and responsiveness. These choices allow you to take your ride down any road you like without worrying whether your wheels can handle it.  Innovative Spoke  Set-UpEach of these wheels feature a dynamic 2:1 spoke ratio set-up to offer remarkable torsional stiffness and power transfer, giving you absolute control of your wheels. Additionally, the disc brake compatible hubset ensures you have more than enough braking power to stop wherever and whenever you need to.Features:  Rim Type: Aluminium Clincher (Tubeless Ready)     Rim Height: 28mm     Rim Width: 23.8mm     Braking System: Disc Brake     Braking Surface: AFS        Spoke Count: Front: 21; Rear: 21        Bearings: Adjustable, Cup & Cone System        Hub: Monoblock for Disc  Weight: 1.66kgBuy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Fulcrum Racing 3 Disc Brake WheelsetWhen designing this Racing 3 wheelset, the guiding principle at Fulcrum was “versatility”. Whether you are training for your next big race or just looking for a pair of wheels that can keep up with your own adventurous tastes, this disc-brake compatible wheelset is versatile enough to do whatever you need it too.  Advanced Rim Design  Each element of the rim design has been tweaked to give you more from this wheelset. The material construction uses the highest strength aluminium available, alloy 6082, to ensure durability while remaining lightweight. A rim width of 23.8mm allows for greater traction to make each uphill climb that little bit easier. Fulcrum’s “Rim Dynamic Balance” technique even ensures that the added weight of the gasket has been balanced on the opposite side to give the wheel greater control and responsiveness. These choices allow you to take your ride down any road you like without worrying whether your wheels can handle it.  Innovative Spoke  Set-UpEach of these wheels feature a dynamic 2:1 spoke ratio set-up to offer remarkable torsional stiffness and power transfer, giving you absolute control of your wheels. Additionally, the disc brake compatible hubset ensures you have more than enough braking power to stop wherever and whenever you need to.Features:  Rim Type: Aluminium Clincher (Tubeless Ready)     Rim Height: 28mm     Rim Width: 23.8mm     Braking System: Disc Brake     Braking Surface: AFS        Spoke Count: Front: 21; Rear: 21        Bearings: Adjustable, Cup & Cone System        Hub: Monoblock for Disc  Weight: 1.66kgBuy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Spank SPANK 359/350 Vibrocore XD WheelsetDesigned with World Cup DH racing in mind, this wheelset features Vibrocore foam inner rim cores to dampen vibrations and increase rider comfort. The rims feature unique profiles, which enhances radial compliance and keeps the weight of the front wheel low. Plus, the 35mm outer width on each rim allows the rider to run wider tyres for increased traction and stability.Durable 3-Cross Spoke PatternThis included Spike hubset holds each J-hook spoke tight in a 3-cross pattern to increase impact absorption on the rough mountain terrain. Plus, each wheel includes BeadBite anti-burp hooks, which holds the tyres tight to the rim for increased security and a reduced risk of pinch flats.Features:  Rim: Alloy Clincher (Tubeless Ready)  Rim Width: 30.5mm (inner), 35mm (outer)  Spokes: J-Hook, triple-butted, 32H, 3-Cross Lacing  Nipples: Brass  Hubset: Spike  Weight: 2.2kg (27.5), 2.26kg (29)Technology:  Vibrocore: Vibrocore technology is injected into Spank Vibrocore products and dramatically reduces vibrations that can lead to hand and arm numbness, fatigue and arm-pump. This additional technology also increases overall stiffness and fatigue life of the product. Vibrocore is one of the biggest innovations in Rim technology as it increases the radial compliancy, lateral stiffness and torsional strength while also damping vibrations from the trail.  OohBah: The unique OohBah profile allows Spank to manufacture thinner-walled, wider-profiled, lighter rims without sacrificing strength or rigidity. Wider rims mean stiffer wheels and more tire spread, leading to greater traction and improved comfort, and tire performance. The wave shape of the OohBah inner tube adds strength and support to the vertical rim flange walls and prevent buckling. Normal straight or curved tube wells must be much thicker, and by default heavier, to offer the same support.  BeadBite: At an incredible range of pressures, BeadBite is the solution to keeping your tires burp free and fixed in place. BeadBite rim technology enhances tubeless use with tires of all types and with a greater range of air pressures. BeadBite rims have 6 rows of tiny ridges that run along the vertical and horizontal faces of the bead seats. These tiny teeth create air seals between the rim and tire as the bead conforms into them under air pressure. They dramatically increase frictional forces on the tire bead, reducing the beads' ability to move vertically or horizontally (thus improving tire stability and reducing burps). The bead literally becomes trapped between the vertical and horizontal ridges, even at very low air pressures. Even in tubed applications, BeadBite rims tend to allow much lower air pressures with reduced risk of pinch flats.Buy Spank Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.

Spank SPANK 359/350 Vibrocore XD WheelsetDesigned with World Cup DH racing in mind, this wheelset features Vibrocore foam inner rim cores to dampen vibrations and increase rider comfort. The rims feature unique profiles, which enhances radial compliance and keeps the weight of the front wheel low. Plus, the 35mm outer width on each rim allows the rider to run wider tyres for increased traction and stability.Durable 3-Cross Spoke PatternThis included Spike hubset holds each J-hook spoke tight in a 3-cross pattern to increase impact absorption on the rough mountain terrain. Plus, each wheel includes BeadBite anti-burp hooks, which holds the tyres tight to the rim for increased security and a reduced risk of pinch flats.Features:  Rim: Alloy Clincher (Tubeless Ready)  Rim Width: 30.5mm (inner), 35mm (outer)  Spokes: J-Hook, triple-butted, 32H, 3-Cross Lacing  Nipples: Brass  Hubset: Spike  Weight: 2.2kg (27.5), 2.26kg (29)Technology:  Vibrocore: Vibrocore technology is injected into Spank Vibrocore products and dramatically reduces vibrations that can lead to hand and arm numbness, fatigue and arm-pump. This additional technology also increases overall stiffness and fatigue life of the product. Vibrocore is one of the biggest innovations in Rim technology as it increases the radial compliancy, lateral stiffness and torsional strength while also damping vibrations from the trail.  OohBah: The unique OohBah profile allows Spank to manufacture thinner-walled, wider-profiled, lighter rims without sacrificing strength or rigidity. Wider rims mean stiffer wheels and more tire spread, leading to greater traction and improved comfort, and tire performance. The wave shape of the OohBah inner tube adds strength and support to the vertical rim flange walls and prevent buckling. Normal straight or curved tube wells must be much thicker, and by default heavier, to offer the same support.  BeadBite: At an incredible range of pressures, BeadBite is the solution to keeping your tires burp free and fixed in place. BeadBite rim technology enhances tubeless use with tires of all types and with a greater range of air pressures. BeadBite rims have 6 rows of tiny ridges that run along the vertical and horizontal faces of the bead seats. These tiny teeth create air seals between the rim and tire as the bead conforms into them under air pressure. They dramatically increase frictional forces on the tire bead, reducing the beads' ability to move vertically or horizontally (thus improving tire stability and reducing burps). The bead literally becomes trapped between the vertical and horizontal ridges, even at very low air pressures. Even in tubed applications, BeadBite rims tend to allow much lower air pressures with reduced risk of pinch flats.Buy Spank Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.