Challenge Almanzo Gravel Open Tubular TyreThis highly-effective gravel tyre features a tubular construction and double-layered puncture protection for excellent durability. The 'open' design of the tyre performs like a tubular, yet conveniently mounts like a standard clincher tyre. Plus, its tight tread offers excellent grip at high speeds, making it a reliable racing tyre even on tougher surfaces. Designed to give you more control than the Strada Bianca tyre and faster rolling resistance than the Gravel Grinder when cornering.Features: Use: Hard Pack Dirt to Light Gravel Size: 700 Tyre Width: 33mm Internal Rim Width: 15-19mm TPI: 260 Bead: Aramid Casing: SuperPoly Flat Protection: Double PPS BAR: 3-9 PSI: 45-130 Weight: 385gTechnologies: 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.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Challenge Grifo Open Pro Cyclocross Bike TyreDeveloped for the rigours of modern cyclocross (CX) racing, this race-ready tyre provides exceptional grip and low rolling resistance as you tackle the more demanding of terrain and course conditions. Featuring a handmade construction, this clincher model's casing is produced with technical materials like Corespun (a cotton and polyester combination). Corespun is a thread from which Challenge obtain a very supple and strong casing with low weights. The casings have a high TPI count that can reach over 300 tpi and production avoids any vulcanisation process to enable all materials to keep their suppleness and flexibility. Handmade Cyclocross Clincher TyreThe tread is slowly hand glued on the casing which is previously mounted and inflated on a rim. By using this method, the tread is relaxed on the casing and does not suffer any tension when inflated. The result of this is a lower rolling resistance, increase in comfort, more precise handling of the bike and better grip.Increased Comfort, Flexibility and Puncture ResistanceTo give the best possible grip in curves Challenge uses materials to obtain flexibility and suppleness, which results in absorption of irregular surfaces giving to the cyclist the best possible contact patch. The wheel avoids jumping and the tyre will deform and absorb the irregularities acting in some way as a shock absorber. A special fabric is placed between the tread and casing to increase puncture resistance PPS (Puncture Protection System) technology. Classed as one of the best all-around cyclocross tyres ever created by the brand, the Challenge Grifo Open Pro Cyclocross Bike Tyre excels in wet, dry, soft packed, rocky and root-infested course conditions.Features: Use: Cyclocross Racing: All Around Soft Pack Tyre Type: Clincher Size: 700c Type Width: 33mm Internal Rim Width: 15-19mm TPI: 300 Bead: Aramid Casing: SuperPoly Flat Protection: PPS Recommended Pressure: BAR: 2.1-2.7; PSI: 30-40 Tubeless Ready: No Single or Pair: Single Weight: 355gTechnologies: Challenge Handmade Clinchers (HCL): This handmade clincher is made from the same materials and processes as the brand's handmade tubulars but instead of sewing an inner tube inside the casing is wrapped around a aramid bead to form a tyre 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.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Open Tubular (Clincher) An open tubular is constructed using the same casing and tread materials and process as a tubular, but instead of sewing the casing together (closed), the sides of the tubular casing are folded around aramid fibre cords to produce beads. This ‘open’ design performs like a tubular, yet conveniently mounts like a standard clincher tyre. If combined with a Latex inner tube the ride becomes even closer to that of a tubular, offering excellent traction and cornering, low rolling resistance and shock absorption.
The Challenge Strada Bianca is built to be the ultimate high-volume all-rounder; just as happy on the road as it is off it. With a fast-rolling but grippy herringbone tread design and tough but supple construction, the Strada Bianca is perfect for all-round road and gravel use.Herringbone tread design for excellent rolling speed and good traction on loose surfaces260TPI SuperPoly & CorrazzaArmor casing gives an incredibly smooth and supple rideHandmade folding bead casing with PPS Ganzo and PPS2 puncture protection SmartPlus rubber compound for excellent grip and durability Not tubeless compatibleBuilt around a fast-rolling herringbone tread design, the Strada Bianca rolls well on hard surfaces yet has enough purchase when braking or climbing to retain traction. For bikes designed to be used on and off the beaten path, the Strada Bianca is the ideal choice.On rough gravel trails, you need confidence that your tyres are tough enough for the job and the Gravel Grinder won't let you down thanks to its double PPS Ganzo and PPS2 puncture protection, while the handmade SuperPoly casing gives it that elegantly supple ride that marks Challenge's handmade tyres out from the rest. If you want an ultra-fast but tough tyre for your gravel bike, the Challenge Strada Bianca is up to the task.
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 Strada Bianca Open Road TyreDesigned for Gravel racing. Proven Paris-Roubaix tread pattern. PPS-2 double puncture protection strip. Low rolling resistance with increased casing volume, achieving a new level of control, puncture resistance and comfort. 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: Size: 700 Tyre Width: 30mm Internal Rim Width: 15-19mm TPI: 260 Bead: Aramid Casing: SuperPoly Flat Protection: Double PPS BAR: 6-9 PSI: 90-130 Weight: 355gTechnologies: 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.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Handmade Tubulars Use: Hard Pack Dirt to Light Gravel Size: 28 Tyre Width: 33 mm Internal Rim Width: 15-19 mm Weight: 390 gr TPI: 260 Bead: - Casing: SuperPoly Flat protection: Double PPS BAR: 3-9 PSI: 45-130 Inner tube: latex
The Strada is Challenge's go to tyre for long days on the road. This all-condition tyre combines a round profile that takes the sting out of rough pavement with a construction that provides maximum control and low rolling resistance.Key Features:Colour: Black, Tan.,TPI: 300.,Recommended Pressure:,25mm 80-110psi.,27mm 65-95psi.,30mm 50-75psi.,Puncture Protection: PPSGANZO.,Rubber Compound: Smart.,Construction: Handmade.,Series: PRO.,Size: 700.,Width: 25, 27, 30mm.,Casing: SuperPoly.,Bead: Tubeless Folding..
Make your mark on the gravel scene with the Gravel Grinder. This tyre combines a fast rolling diamond centre with aggressive shoulder knobs that only hook-up when the terrain gets soft, muddy, or a bit sketchy.Key Features:Colour: Black and Brown.,TPI: 120.,Recommended Pressure:,33mm 35-60psi.,38mm 32-53psi.,42mm 30-50psi.,46mm 25-35psi.,Puncture Protection: -.,Rubber Compound: Vulcanized.,Construction: Vulcanized.,Series: RACE.,Size: 650 and 700.,Width: 33, 38, 42 and 46mm.,Casing: Nylon Superlight.,Bead: Tubeless Folding..
With countless Pro-Tour victories to it's name, the Challenge Criterium is born to race and has the pedigree to prove it! Lightning fast but with impressive cornering control, there's a good reason the Criterium has such a stacked trophy cabinet!Incredibly fast rolling herringbone tread also offers excellent cornering control320TPI Corespun Cotton casing gives an incredibly smooth and supple rideHandmade folding bead casing with PPS Ganzo puncture protectionSmart rubber compound for excellent grip and durabilityNot tubeless compatibleThe Criterium is built for speed and racing and the herringbone tread helps it roll incredibly well while still offering excellent control under braking and while cornering, even in the wet. It may be for race day, but the Criterium is not just for dry days; it's happy enough in the wet as well.Built around Challenge's legendary 320TPI Corespun cotton casing, the Criterium offers an unbelievably smooth ride, meaning even on longer stage races, you won't feel beaten up and it can even help transform otherwise stiff riding bikes into something far more comfortable and compliant. If you want the ultimate road racing tyre that really can do it all, the Challenge Criterium is the perfect choice.
With countless Pro-Tour victories to it's name, the Challenge Criterium is born to race and has the pedigree to prove it! Lightning fast but with impressive cornering control, there's a good reason the Criterium has such a stacked trophy cabinet!Incredibly fast rolling herringbone tread also offers excellent cornering control320TPI Corespun Cotton casing gives an incredibly smooth and supple rideHandmade folding bead casing with PPS Ganzo puncture protectionSmart rubber compound for excellent grip and durabilityNot tubeless compatibleThe Criterium is built for speed and racing and the herringbone tread helps it roll incredibly well while still offering excellent control under braking and while cornering, even in the wet. It may be for race day, but the Criterium is not just for dry days; it's happy enough in the wet as well.Built around Challenge's legendary 320TPI Corespun cotton casing, the Criterium offers an unbelievably smooth ride, meaning even on longer stage races, you won't feel beaten up and it can even help transform otherwise stiff riding bikes into something far more comfortable and compliant. If you want the ultimate road racing tyre that really can do it all, the Challenge Criterium is the perfect choice.
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.