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.
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.
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.
The Challenge Dune is a super fast rolling CX tyre designed to provide maximum speed and control on sandy and frozen CX courses. It won't be out of place if you decide to go gravelling on your CX bike either!File tread pattern with exaggerated side tread for excellent speed and grip300TPI SuperPoly casing gives an incredibly smooth and supple rideHandmade folding bead casing with PPS puncture protectionSmart rubber compound for excellent grip and durabilityNot tubeless compatibleThe Dune's file centre tread rolls incredibly well on sand as well as hard-packed surfaces, while still offering excellent traction under power and when braking. Supplementing this are larger side knobs that dig in while cornering, offering a super surefooted feel on even the loosest of corners.On tough CX courses, you need confidence that your tyres are tough enough for the job and the Dune won't let you down thanks to it's PPS 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 a fast, lightweight and tough tyre for your CX bike, the Challenge Dune is up to the task.
The Challenge Chicane is a super fast rolling CX tyre designed to provide maximum speed and control on dry hardpack CX courses. It won't be out of place if you decide to go gravelling on your CX bike either!File tread pattern with exaggerated side tread for excellent speed and grip300TPI SuperPoly casing gives an incredibly smooth and supple rideHandmade folding bead casing with PPS puncture protectionSmart rubber compound for excellent grip and durabilityNot tubeless compatibleThe Chicane's file centre tread rolls incredibly well on hard-packed surfaces, will still offering excellent traction under power and when braking. Supplementing this are larger side knobs that dig in while cornering, offering a super surefooted feel on even the loosest of corners.On tough CX courses, you need confidence that your tyres are tough enough for the job and the Chicane won't let you down thanks to it's PPS 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 a fast, lightweight and tough tyre for your CX bike, the Challenge Chicane is up to the task.
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.
The Challenge Almanzo is perfect for adventure and gravel riders who want more control than the Strada Bianca, but with lower rolling resistance and weight than the Gravel Grinder.File tread pattern with exaggerated side tread for excellent speed and grip260TPI SuperPoly & CorrazzaArmor casing gives an incredibly smooth and supple rideHandmade folding bead casing with PPS Ganzo and PPS2 puncture protectionSmartPlus rubber compound for excellent grip and durabilityNot tubeless compatibleThe Almanzo's file centre tread gives it incredibly low rolling resistance, so it speeds a long easier than the Gravel Grinder without giving too much away to the much slicker Strada Bianca. Compared to the Strada Bianca though, the Almanzo's exaggerated side tread gives bundles of confidence in loose corners, so you can attack them.On rough gravel trails, you need confidence that your tyres are tough enough for the job and the Almanzo won't let you down thanks to it's 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 a highly versatile, lightweight and tough tyre for your gravel bike, the Challenge Almanzo is up to the task.
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.
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.
Whether the surface is wood or concrete, this unmatched tyre holds the sprinter's line like nothing else. The Pista's silk (seta) casing with more than 1,000 threads-per-inch, a tread that is fast-rolling and grippy in the corners, and our seamless latex inner tube makes for a stellar track tyre that's race-day light, super supple for a sweet ride, and ready to carry you to victory after victory. The latex tube is lighter, thinner and more flexible than a butyl tube, increasing your comfort, lowering your rolling resistance, and helping to prevent flats. The tube also includes a removable core Presta valve.Key Features:Colour: White.,TPI: 320.,Recommended Pressure: 85-130psi.,Puncture Protection: -.,Rubber Compound: Smart.,Construction: Handmade.,Series: SC.,Size: 700.,Width: 23mm.,Casing: Sealed Corespun Cotton.,Bead: Folding..
Challenge Almanzo Tubular Mountain Bike TyreThe Challenge Almanzo Tubular MTB Tyre brings the rolling performance and traction benefits of the tubular tyre system to mountain bikes. Featuring two layers of puncture protection, a supple and tough SuperPoly tread compound and a reinforced 260 TPI casing; this tyre provides exceptional rider confidence thanks to the its grip and traction qualities, which enables you to rider faster over gravel terrain.Features: Use: Gravel Type: Tubular Puncture Protection: Double PPS Casing: SuperPoly TPI: 260 Inflation Pressure: 60 - 130 psi Weight: 385gBuy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
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.