Instead of being sewed with an inner tube inside, at the end of the process beads are made by folding the casing around Aramid fibers threads. For this reason an open tubular gives very similar ride feel of that of a tubular, mainly if a latex inner tube is used. Mounting an open tubular on a wheel is the same as mounting a standard clincher but with the advantage of riding a much more comfortable and performing tyre. Built for the intensity of riding in extreme conditions, this tyre is a perfect upgrade for maximising your control during muddy conditions. Technologies: 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 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. 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 Limus Open Cyclocross TyreDeeper 33mm knobs for increased traction in deep mud. Speed and max. traction all in one.Open tubular differ from traditional clinchers for the construction. The Tyre is produced just like a tubular and uses the same materials and production process. Instead of being sewed with an inner tube inside, at the end of the process beads are made by folding the casing around Aramid fibers threads. For this reason an open tubular gives very similar ride feel of that of a tubular, mainly if a latex inner tube is used.Mounting an open tubular on a wheel is the same as mounting a standard clincher but with the advantage of riding a much more comfortable and performing tyre. Built for the intensity of riding in extreme conditions, this tyre is a perfect upgrade for maximising your control during muddy conditions.Features: Use: Cross Racing: All around, Sticky Mud Size: 700 Tyre Width: 33mm Internal Rim Width: 15-19mm TPI: 300 Bead: Aramid Casing: SuperPoly Flat protection: PPS BAR: 2-6 PSI: 30-90 Weight: 370gTechnologies: 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 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. 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: Cross Racing: Deep Mud Size: 700 Tyre Width: 33 mm Internal Rim Width: 15-19 mm Weight: 370 gr TPI: 300 Bead: Aramid Casing: SuperPoly Flat protection: PPS BAR: 2-6 PSI: 30-90
Challenge Strada Bianca ProTubular Cyclocross TyreThe Challenge Challenge Strada Bianca ProTubular Cyclocross Tyre offers world-class fast rolling resistance and is specifically designed for gravel riding and racing. It's also ideal for those with gravel bikes who are looking for a tyre that enables you to run lower pressures for more comfortable road riding without the worry of puncturing. This is thanks to the double PPS (Puncture Protection System) between the tread and casing, which provides excellent durability without excess bulk.Hand AssembledChallenge uses the latest technical materials such as corespun for the inner casing of these tyres. This material produces a very high TPI (threads-per-inch) count to ensure the ultimate in strength, suppleness, and low weight. This casing is then hand glued on to the tread, which has previously been installed and inflated on a rim. This means that when the assembled tyre is inflated, it provides more precise handling, lower rolling resistance, and better grip.Shock AbsorbingThe best materials have been used to obtain consistent grip over uneven terrain and reduce the vibration feedback to the rider, helping you to maintain grip and control on even the longest and roughest races. The advanced design reduces wheel skipping and jumping over rough surfaces, ensuring efficient grip and helping you to maintain your speed. These tyres also feature a double layer of Challenge's PPS (puncture protection system) between the tread and casing, to give you confidence when blasting over tree roots and sharp rocks.Features: Size: 700 Tyre Width: 30mm Internal Rim Width: 15-19mm TPI: 260 Casing: SuperPoly Flat Protection: Double PPS BAR: 4-10 PSI: 60-150 Inner Tube: LatexTechnologies: Challenge Handmade Tubulars (HTU): Our Handmade Tubular (HTU) tires perform better than any tubeless system! Therefore, they are raced by all the top athletes and teams in every cycling segment. The latex inner tube we cradled inside the high-quality casing that is sewn shut, forming a soft protective layer for the delicate tube. A base tape is glued over the sewing for protection and to absorb the adhesive later applied to hold the tubular on the rim. The carcass is mounted on a rim, inflated and a special natural rubber tread is precisely glued on top. Puncture protection layers and sealants can be applied to the finished casing, depending on the tubular's use.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Challenge SuperLite Cross Latex CX Inner TubeLatex inner tubes: Used in all high end tubular thanks to their low rolling resistance. Thinner and more flexible than butyl tubes.The use in open tubulars increases comfort and lowers rolling resistance. Latex is also more resistant to punctures. On the other hand it is a porous material therefore it requires daily inflation. Saving more than three watts per wheel over a butyl inner tube, this road bike tube gives you lighter and softer performance.Puncture protection is also greatly improved as latex extends and expands 7 to 8 times its original size, whereas butyl only about 1.5x meaning that latex is much, much more flexible and not immediately prone to punctures. Unlike the stiffer butyl, latex will first expand and wrap itself all around a protruding object and often isn't successful puncturing through even after working itself all the way in the tyre.The best performance and comfort combination is the latex inner tube with a handmade clincher, although the latex tube can also improve the ride of any other type of clincher.Replacing the standard butyl inner tubes (even superlight ones) with the Challenge seamless latex inner tube is by far the most affordable way of improving the performance and overall feel of your bike.Features: Use: Handmade Clincher Tyres Valve: Presta Removable Core Valve Length: 48mm Size: 700 Tyre Width: 29-38mm Weight: 75gBuy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Continental: Our first class all-rounder and top choice for race day The Cross King is a versatile competition and trail tyre, with enough grip for wet trails yet super fast rolling thanks to an offset centre tread design.Our unique BlackChili tread compound offers a great long lasting grip. The shoulder lugs provide high stability in high speed corners.Fast rolling Trail / XC tyre,Completely re-engineered casing which seats and inflates for all tubeless systems first time,Fits between the Race King and Mountain King in the Continental range,B+ 2.6 & 2.8" options - lower tyre pressures - more fun.
Butyl tube for cyclocross-cross useUnitube fits 32 - 47C section tyres,Weighs 169 grams,All tubes have a seamless construction, with a mould-cured vulcanisation, to ensure uniformroundness.
Continental Cross 28 Inner TubeThese high-quality Cross 28 Inner Tube is made from butyl and is ideally suited for the challenges of Cyclocross.Features:Material: ButylValve Type: Multiple size optionsValve Length: Multiple size optionsValve Core Removeable: YesTyre Compatibility: Wheel size 700cWeight: 155gBuy Continental Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Continental Cross 28 Inner TubeThese high-quality Cross 28 Inner Tube is made from butyl and is ideally suited for the challenges of Cyclocross.Features:Material: ButylValve Type: Multiple size optionsValve Length: Multiple size optionsValve Core Removeable: YesTyre Compatibility: Wheel size 700cWeight: 155gBuy Continental Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Continental Cross 28 Inner TubeThese high-quality Cross 28 Inner Tube is made from butyl and is ideally suited for the challenges of Cyclocross.Features:Material: ButylValve Type: Multiple size optionsValve Length: Multiple size optionsValve Core Removeable: YesTyre Compatibility: Wheel size 700cWeight: 155gBuy Continental Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Key Features: The Cross King perfectly fills in the gap between our Race King and Mountain King II in terms of application, Featuring Pure Grip, a new compound developed for Continental performance products, Pure Grip sits just behind BlackChili, providing great grip, high durability and mileage, The tyre is designed for XC and trail use with speed as the main priority, It was developed in conjunction with the Topeak-Ergon professional MTB team who have now already recorded many race wins on what they call the perfect race day tyre, The cleverly designed tread pattern which provides ample traction yet almost the rolling sensation of a much slicker tyre, Folding tyre, Tubeless Ready, Constructed from 3 ply, totalling 84 tpi, .*Note: Image is for display purposes only*
Super fast, nevertheless with a good grip, the X-King was developed with the Topeak Ergon mountain bike professional team. Despite pronounced studs, the X-King rolls off smoothly and very quietly. No matter if its on its own or teamed with Race and Mountain King, the super-light X-King easily covers many uses, ranging from cross country/race to All Mountain. The X-King simply leaves its competitors behind. The shoulder lugs provide absolute stability in curves negotiated at high speeds. Pure Grip Compound Based on activated silica compounds, this technology was originally intended as an performance level compound, but after intensive development at their Korbach research and development department, an advanced new compound with outstanding grip and cross-country properties was developed. This new rubber mix, given the self explanatory name Pure Grip, is ranked just behind their BlackChili compound and is being used in their performance products both on the road and MTB sectors. It provides great grip, highly durable and long lasting