The wider C17 rim design of the Zonda ensures a more efficient shape of the tyre, improving cornering grip and safety while reducing aerodynamic drag and rolling resistance. A seemingly small increase in width offers a surprisingly different riding experience, one that is sure to leave any cyclist convinced that a wider tyre size is the way forward.The asymmetric rim profile offers superior aerodynamics without sacrificing stability, the precision milling eliminates excess material reducing weight, the Rim Dynamic Balance Technology ensures that every point of the rim is counter-balanced by an equal weight on the opposing side, providing maximum stability even at high speeds and the MoMag Technology creates a tyre bed free of spoke holes, eliminating the need for rim tape and offering structural superiority. The wheels are laced with 21 stainless steel spokes in the MEGA G3 Pattern providing reinforcement on the braking side at the front, and the cassette side at the rear; creating the perfect balance of spoke tensions on both sides of the wheel, reducing stress, increasing traversal rigidity and improving the transmission of power to the wheel. Asymmetric rim profilePrecision millingRim dynamic balanceMoMag technology21 Spokes in stainless steel with Mega-G3 systemShimano / SRAM Freehub Aluminium oversize flangeCup & cone bearingsQuick release or 12mm bolt through axle Weight: 1675g
Campagnolo Zonda C17 Road Clincher Wheelset With a redesigned rim that takes its inspiration from a growing trend towards wider tyres, the Zonda C17 model is a truly modern, high performing alloy wheelset. In addition to the wider rim profile, there are differentiated front and rear rim heights, bringing you the ideal balance of comfort and performance.Optimised Aluminium RimThe wider C17 rim ensures a more efficient shape of the tyre, improving cornering grip and safety while reducing aerodynamic drag and rolling resistance. The new C17 rim has been structurally optimised to provide a surefooted grip on clincher tyres as well as an even better braking feel when compared with previous versions. The freehub spins silently as you enjoy time in the saddle.Features: Material: Aluminium (Rim) Brake Type: Rim brake Tyre Compatibility: Clincher Front Hub: 16 Aerodynamic radial spokes Rear Hub: 21 Aerodynamic radial spokes Weight Limit: 109kg Tubeless Compatible: No Axle Type: Quick release Differentiated Rim Height Precision milling to eliminate excess material and weight where not needed Aluminium oversize flange MEGA G3 pattern Cup and cone bearings Self-locking nipples Included: Wheelset, rim tape, QR skewers Weight: 1,540g Technologies:Rim Dynamic Balance: The concept is simple and elegant: balance the weight of the gasket, with an item of similar weight placed on the exact opposite side. For top models, this is obtained by a special operation on the section of the rim opposite the rim joint.Spoked Dynamic Balance: For entry-level models, Dynamic Balance is obtained by using two oversized spokes in the section opposite the joint. The result is a wheel with perfectly balanced rotational dynamics.MoMag: A technology that offers several advantages to the structural integrity of the wheel as well as eliminating the need for rim tape. The name derives from “Mounting Magnet” system, shortened to MoMag.Buy Campagnolo Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Campagnolo Zonda C17 Road Clincher Wheelset With a redesigned rim that takes its inspiration from a growing trend towards wider tyres, the Zonda C17 model is a truly modern, high performing alloy wheelset. In addition to the wider rim profile, there are differentiated front and rear rim heights, bringing you the ideal balance of comfort and performance.Optimised Aluminium RimThe wider C17 rim ensures a more efficient shape of the tyre, improving cornering grip and safety while reducing aerodynamic drag and rolling resistance. The new C17 rim has been structurally optimised to provide a surefooted grip on clincher tyres as well as an even better braking feel when compared with previous versions. The freehub spins silently as you enjoy time in the saddle.Features: Material: Aluminium (Rim) Brake Type: Rim brake Tyre Compatibility: Clincher Front Hub: 16 Aerodynamic radial spokes Rear Hub: 21 Aerodynamic radial spokes Weight Limit: 109kg Tubeless Compatible: No Axle Type: Quick release Differentiated Rim Height Precision milling to eliminate excess material and weight where not needed Aluminium oversize flange MEGA G3 pattern Cup and cone bearings Self-locking nipples Included: Wheelset, rim tape, QR skewers Weight: 1,540g Technologies:Rim Dynamic Balance: The concept is simple and elegant: balance the weight of the gasket, with an item of similar weight placed on the exact opposite side. For top models, this is obtained by a special operation on the section of the rim opposite the rim joint.Spoked Dynamic Balance: For entry-level models, Dynamic Balance is obtained by using two oversized spokes in the section opposite the joint. The result is a wheel with perfectly balanced rotational dynamics.MoMag: A technology that offers several advantages to the structural integrity of the wheel as well as eliminating the need for rim tape. The name derives from “Mounting Magnet” system, shortened to MoMag.Buy Campagnolo Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Key Fetures:Challenge handmade tubulars and clinchers seating tool..HD synthetic polymer construction safe to use with beaded carbon and alloy rim designs. .Single handed application with storage clip..
Perfect for both training and racing, this tyre is built to handle all the challenges that are associated with riding on rough roads. This makes it a perfect choice of upgrade for riders who want excellent comfort and control. Technologies: Challenge Handmade Clinchers (HCL): Our Handmade Clinchers are made from the same materials and processes as our handmade tubulars but instead of sewing an inner tube inside the casing is wrapped around an aramid bead to form a tire that fits on a clincher rim. The HCL is moulded flat, not in a horseshoe like a TLR or VCL. This shape allows the casing to naturally deform over surface imperfections and minimize rolling resistance. A tubeless tire is moulded in a U-shape to make the sidewalls rigid, so the system does not “burp” or lose air when it deforms after it encounters a surface imperfection. The tubeless tire’s stiff sidewall compromises its ability to equal a supple HCL with a latex inner tube.
Challenge Gravel Grinder Clincher MTB TyreThe Challenge Gravel Grinder is an off-road touring tyre, which features an aggressive SuperPoly tyre compound to provide exceptional rolling performance and traction whatever the riding conditions. To ensure complete reliability, this tyre features Double PPS puncture protection and a 260 TPI casing. This tyre is ready to be your companion on any XC adventure. Coming equipped with a fast-rolling diamond centre, this tyre is perfect for all-around gravel and adventure riding.Features: Use: All Around Gravel Size: 700 Tyre Width: 36mm Internal Rim Width: 17-23mm TPI: 260 Bead: Aramid Casing: SuperPoly Flat Protection: Double PPS BAR: 3-9 PSI: 45-130 Weight: 440gTechnologies: Challenge Handmade Clinchers (HCL): These Handmade Clinchers are made from the same materials and processes as our handmade tubulars but instead of sewing an inner tube inside the casing is wrapped around an aramid bead to form a tire that fits on a clincher rim. The HCL is moulded flat, not in a horseshoe like a TLR or VCL. This shape allows the casing to naturally deform over surface imperfections and minimize rolling resistance. A tubeless tire is moulded in a U-shape to make the sidewalls rigid, so the system does not “burp” or lose air when it deforms after it encounters a surface imperfection. The tubeless tire's stiff sidewall compromises its ability to equal a supple HCL with a latex inner tube.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Specifications: Use: All Around Gravel Size: 700 Tire Width: 33 Internal Rim Width: (33mm) 5-19 mm TPI: 120 Bead: Aramid Casing: Nylon BAR: 3.1-5.1 PSI: 45-75 Color: Black-Brown
Fast rolling and excellent control for all-around gravel and adventure use. Tubeless Ready Use: All Around Gravel Size: 700c Tyre Width: 33, 38 or 42mm Internal Rim Width: (33mm) 5-19 mm (38mm) 17-23 mm (42mm) 17-23 mm Weight: (33mm) gr (38mm) 375gr (42mm) 450gr TPI: 120 Bead: Aramid Casing: Nylon BAR: (33mm) 3.1-5.1 (38mm) 3.1-5.1 (42mm) 2.4-4.1 PSI: (33mm) 45-75 (38mm) 40-75 (42mm) 35-60 Color: Black-Black
Challenge Gravel Grinder Tubeless Vulcanised TyreReady for the rough and tumble of gravel riding, this Challenge tyre is up to the task of keeping you upright and unrivalled over such loose and rugged terrains. Equipped with a flat centreline tread, it rolls like a dream with speed and confidence, while the raised shoulder knobs give exemplary traction when cornering and braking. Made from a dependable vulcanised 120 TPI nylon casing and reinforced with a Challenge's Puncture Protection Strip (PPS), this tyre provides the strength and sturdiness you need for a confidence-instilling ride. Coming complete with a fast-rolling diamond centre, this tyre is perfect for all-around gravel and adventure riding.Features: Tubeless Ready: Yes Use: All Around Gravel Size: 700 Tyre Width: 33mm Internal Rim Width: 17-25mm TPI: 120 Bead: Aramid Casing: Nylon Flat Protection: PPS BAR: 3.1-5.1 PSI: 40-75 Weight: 375gTechnologies: Vulcanized Tubeless Ready (VTR): The highest level of performance offered by car, truck and motorcycle tyre manufacturers is a vulcanized tubeless system. While this is an old technology for cars and trucks, for bicycles it is relatively new and did not even have an internationally accepted design standard (ISO or ETRTO) until recent years. By eliminating the inner tube it is possible to lower the weight and create a softer, more comfortable, more efficient, lower rolling resistance tyre system by running lower tyre pressure. Challenge started introducing Vulcanized Tubeless Ready (VTR) tyres in recent years because the ISO and ETRTO standards for proper VTR tire and rim fit have finally been completed. These standards ensure your safety and your ability to fit and service the tyres with hand tools. Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Challenge Gravel Grinder Tubeless Vulcanised TyreReady for the rough and tumble of gravel riding, this Challenge tyre is up to the task of keeping you upright and unrivalled over such loose and rugged terrains. Equipped with a flat centreline tread, it rolls like a dream with speed and confidence, while the raised shoulder knobs give exemplary traction when cornering and braking. Made from a dependable vulcanised 120 TPI nylon casing and reinforced with a Challenge's Puncture Protection Strip (PPS), this tyre provides the strength and sturdiness you need for a confidence-instilling ride. Coming complete with a fast-rolling diamond centre, this tyre is perfect for all-around gravel and adventure riding.Features: Tubeless Ready: Yes Use: All Around Gravel Size: 700 Tyre Width: 33mm Internal Rim Width: 17-25mm TPI: 120 Bead: Aramid Casing: Nylon Flat Protection: PPS BAR: 3.1-5.1 PSI: 40-75 Weight: 375gTechnologies: Vulcanized Tubeless Ready (VTR): The highest level of performance offered by car, truck and motorcycle tyre manufacturers is a vulcanized tubeless system. While this is an old technology for cars and trucks, for bicycles it is relatively new and did not even have an internationally accepted design standard (ISO or ETRTO) until recent years. By eliminating the inner tube it is possible to lower the weight and create a softer, more comfortable, more efficient, lower rolling resistance tyre system by running lower tyre pressure. Challenge started introducing Vulcanized Tubeless Ready (VTR) tyres in recent years because the ISO and ETRTO standards for proper VTR tire and rim fit have finally been completed. These standards ensure your safety and your ability to fit and service the tyres with hand tools. Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Features: Not To Be Used Tubeless Use: Rough Road, Cobbles, Big Riders, Hard Packed Dirt Size: 28 Tire Width: 36 mm Internal Rim Width: 17-23 mm Weight: 375 gr TPI: 260 Bead: Aramid Casing: SuperPoly Flat protection: Double PPS BAR: 3-6 PSI: 45-90
Challenge Strada Bianca Tubeless Vulcanised TyreHandmade in Italy, this gravel and hardpack suited tyre from Challenge is robustly created to take on rugged routes and tough tracks. Featuring a bold 120 tpi Nylon casing, vulcanised for added protection, it stands up brilliantly to the rough and tumble of such riding for a confidence-inspiring performance on every outing. Giving you fast rolling and cornering, this world-class tyre is a perfect upgrade for riders who want maximum control in all riding conditions. Features: Tubeless Ready: Yes Use: Rough Road, Cobbles, Big Riders, Hard Packed Dirt Size: 700 Tyre Width: 36mm Internal Rim Width: 17-23mm TPI: 120 Bead: Aramid Casing: Nylon BAR: 2-3.5 PSI: 30-50 Weight: 380gTechnologies: Vulcanized Tubeless Ready (VTR): The highest level of performance offered by car, truck and motorcycle tyre manufacturers is a vulcanized tubeless system. While this is an old technology for cars and trucks, for bicycles it is relatively new and did not even have an internationally accepted design standard (ISO or ETRTO) until recent years. By eliminating the inner tube it is possible to lower the weight and create a softer, more comfortable, more efficient, lower rolling resistance tyre system by running lower tyre pressure. Challenge started introducing Vulcanized Tubeless Ready (VTR) tyres in recent years because the ISO and ETRTO standards for proper VTR tire and rim fit have finally been completed. These standards ensure your safety and your ability to fit and service the tyres with hand tools.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.