700c, 27-Inch & 650c

Puncture protection and mileage are the strengths of Hardshell-ProTection. A wider PolyX Breaker, the specialist against punctures under the tread center and shoulders, provides for great reliability. The three-ply—each layer with 60 TPI—carcass covers the entire tire and makes it a real bastion against urban detritus. The outer sidewalls of the tire are reinforced with DuraSkin fabric, providing even more reliability due to the casing being so well protected. Hardshell tires are the puncture-resistant flagship amongst racing tires—produced exclusively in Germany. - Ideal when it comes to extremely long service life, for the next tour or the commute. - Made for rough surfaces and rugged tarmac.

The Grand Prix 4-Season is a reliable companion for training rides and in competition, come rain or shine, featuring superior durability that's ready for any season. - Designed to wear longer and offer improved traction in harsh conditions and lower temperatures - Vectran Breaker is spun from liquid crystal-polymer to create a multiple-thread thermoplastic yarn. This partially crystalline fabric is more cut-resistant than aramid and its tensile strength is five times higher than that of steel. A Vectran Breaker is lighter, more flexible and effective against cuts than a comparable nylon breaker, without affecting rolling resistance - Duraskin provides a cut-resistant layer from bead to bead

The Archetype is a racer's tire, with speed and low rolling resistance at its heart. It was born in collaboration with UAE Team Emirates - XRG with the goal of making a tire that was even lighter and faster than before. The Archetype tire was designed to be compatible with hooked and hookless rims and features Limited Edition Tour de France labels and packaging. - Tour de France limited edition graphics and packaging - Lazer Grip, to make you one with the road. The lasered micro profile structure expands over the tire’s shoulder and provides outstanding cornering - Active Comfort Technology (ACT) takes a revolutionary approach in cycling; embedded in the tire construction to absorb vibrations and smoothens your ride - Black Chili Compound features special synthetic rubbers combined with proven natural rubber to high-performance tread mixtures, to optimize rolling properties and grip - Tubeless-ready (TR) carcass construction is robust and impervious against damage and penetration from foreign objects - Hookless rim compatible up to 73 PSI / 5 bars Elevate your road cycling adventures with Continental Road Cycling Tires. Experience the perfect fusion of excellence, performance, and durability that they are known for. Whether you’re racing, touring, or embarking on long-distance rides, Continental has the road bike tire you need. - Explore high-performance road bike tires designed for maximum speed and efficiency - Continental’s all-weather road cycling tires provide superior traction and control. Rain or shine, these tires ensure you maintain stability and safety - Discover road bike tires optimized for long-distance journeys. These tires prioritize comfort and reliability, making them perfect for extended road cycling adventures

The Grand Prix 5000 TT TR is the specialist tire for races against the clock, making it the fastest GP 5000 tubeless tire for the pursuit of speed, be it in a criterium, time trial or triathlon. - Tubeless ready (TR) carcass construction is robust and impervious against damage and penetration from foreign objects - Designed and built to go fast - Vectran Breaker is spun from liquid crystal-polymer to create a multiple-thread thermoplastic yarn. This partially crystalline fabric is more cut-resistant than aramid and its tensile strength is five times higher than that of steel. A Vectran Breaker is lighter, more flexible and effective against cuts than a comparable nylon breaker, without affecting rolling resistance - Lazer Grip, to make you one with the road. The lazered micro profile structure expands over the tire’s shoulder and provides outstanding cornering - Active Comfort Technology (ACT) takes a revolutionary approach in cycling; embedded in the tire construction to absorb vibrations and smoothens your ride - Black Chili Compound features special synthetic rubbers combined with proven natural rubber to high-performance tread mixtures, to optimize rolling properties and grip

The AERO 111 is the next generation in tire performance, developed in collaboration with DT Swiss and Swiss Side. Featuring an innovative and aerodynamically-optimized tread, this tire is engineered to effortlessly cut through the air like never before. The tread's 48 precision-formed, vortex-generating cavities create controlled turbulence, ensuring prolonged airflow attachment to the rim, resulting in reduced aerodynamic drag and improved crosswind stability. The AERO 111 also incorporates all the winning technologies from the GP5000 TR Family: Black Chili Compound for superior grip and minimal rolling resistance, coupled with the trusted Vectran Breaker for added puncture protection. It’s the ultimate aerodynamic tire – without compromise. - Vortex Generators allow for the reduction of aerodynamic drag of the entire wheel-tire-system - Aero, grippy and fast design: It's the go-to tire for road cyclists who know that every watt counts - Improved handling in crosswinds through enhancing the sailing effect - Hookless compatible, Tubeless ready design allows the rider to run the tire at a lower pressure thus adding comfort and puncture protection - Black Chili Compound features special synthetic rubbers combined with proven natural rubber to high-performance tread mixtures, to optimize rolling properties and grip - Vectran Breaker is spun from liquid crystal-polymer to create a multiple-thread thermoplastic yarn. This partially crystalline fabric is more cut-resistant than aramid, and its tensile strength is five times higher than that of steel. A Vectran Breaker is lighter, more flexible, and effective against cuts than a comparable nylon breaker, without affecting rolling resistance - The combination of all these features means on top of the low aerodynamic drag, the AERO 111 offers low rolling resistance, good puncture resistance,e and exceptional grip in both wet and dry conditions - Black Chili Compound features special synthetic rubbers combined with proven natural rubber to high-performance tread mixtures, to optimize rolling properties and grip - Vectran Breaker is spun from liquid crystal-polymer to create a multiple-thread thermoplastic yarn. This partially crystalline fabric is more cut-resistant than aramid, and its tensile strength is five times higher than that of steel. A Vectran Breaker is lighter, more flexible and effective against cuts than a comparable nylon breaker, without affecting rolling resistance

The Strada is Challenge's go to tire for long days on the road. This all-condition tire combines a round profile that takes the sting out of rough pavement with a construction that provides maximum control and low rolling resistance. This handmade clincher combines a supple, 300TPI SuperPoly casing with natural rubber tread for long distance comfort, confident cornering, and quick handing. This tire includes PPS Ganzo, a lightweight and supple Puncture Protection System placed between the tread and casing to increase resistance to punctures.

- Ideal road bike commuting tire - With a thicker layer of tread rubber, the Caldera provides longer-lasting tread wear than a normal road tire - Bead: non-folding - Weight: 330 grams