700c, 27-Inch & 650c

Uncompromising Speed Designed for peak race performance, CADEX Race Tubeless tires have won over the pros through their superior speed, ultra-light weight, and supple ride feel. - RR-S Compound boasts minimal rolling resistance and remarkable grip in the corners - Single-layer SRC casing delivers an incredibly supple ride with superior rolling efficiency at a super low weight - Race Shield puncture protection provides superior puncture protection without compromising on speed or road feel - Carbon/Kevlar Composite bead keeps the tire secured to the rim and provides greater strength to withstand the higher pressures needed for road tires

- RR-S AR Compound offers outstanding grip on both rough roads as well as pavement in all weather without compromising on speed - Single-layer SRC casing delivers an incredibly supple ride with superior rolling efficiency at a super low weight - Race Shield puncture protection provides superior puncture protection without compromising speed or road feel - Carbon/Kevlar Composite bead keeps the tire secured to the rim and provides greater strength to withstand the higher pressures needed for road tires

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 tubular combines a supple, 300TPI SuperPoly casing with natural rubber tread, and a seamless latex inner tube for improved comfort, confident cornering, and quick handing. 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. This tire includes PPS Ganzo, a lightweight and supple Puncture Protection System placed between the tread and casing to increase resistance to punctures.

The new Grand Prix 5000 S Tubeless Ready: Lighter, faster and with stronger sidewalls. The new standard in road tubeless ready technology. Ride faster, more comfortable and with increased puncture protection. Made to make you better.

- Maxxis' fastest and lightest road racing tire - Light and supple 170 TPI casing, K2 puncture protection, and HYPR-S combound - This new compound retains the grip found on the original High Road, but reduces rolling resistance by 12%.

- RR-S compound provides ultimate low rolling resistance and excellent all-around grip - Optimized compound profile provides better tire shoulder grip for outstanding cornering capability - Fast all-around tread pattern for maximum speed on the road - Race Shield Puncture Protection features exclusive ultra-lightweight and cut-resistance - Kevlar material ensures maximum puncture protection - Carbon/Kevlar Composite Bead keeps the tire secured to the rim and provides greater strength to withstand the higher pressures needed for road tires

- New RR-E compound features efficient rolling and durability in the center of the tire with a tackier shoulder, offering increased grip and stability when cornering - Low rolling resistance combines with high mileage through the use of a fast, efficient, and durable compound in the center of the tire with a tackier compound on the shoulder - Optimized compound profile provides better tire shoulder grip resulting in outstanding cornering capability - Endurance-Specific Tread Pattern Design for better wet/mix-terrain grip - Race Shield Puncture Protection features exclusive, ultra-lightweight, and cut-resistant Kevlar material, ensuring maximum puncture protection - Carbon/Kevlar Composite Bead keeps the tire secured to the rim and provides greater strength to withstand the higher pressures needed in road tires

- Race oriented semi-slick tire - Maximum efficiency on light terrain, hard pack, and asphalt - Supple construction for a smooth ride and high puncture protection for tough racing conditions - Super Race construction

- Unleashing profile and breathtakingly fast – especially when large volume counts. - As a 30-35mm wide road race version with V-Guard protection, G-One Speed is a tire for the real tough jobs. - It is also a guarantee for maximum speed in the extra-wide 50mm execution – of course not only at the fascinating beach races on Holland's coasts. - The new G-One Speed is an evolution of the former S-One and Big One.

The G-One Speed offers an unleashing profile and is breathtakingly fast—especially when large tire volume is crucial. - G-One Speed is a tire for the real tough jobs - Guaranteed for maximum speed

- The next generation of tubeless tires. A truly thrilling ride. It's fast. It's reliable. It's light. - The patented MicroSkin construction makes this all possible. The rolling resistance is minimal! - All around cut resistance and puncture protection are extraordinary. - This is the absolute top model from Schwalbe! - The Schwalbe One Pro can also be used with a normal tube, but its true strengths are experienced only in tubeless form.

- Tubeless tires guarantee the lowest rolling resistance while maintaining very high puncture resistance

- All-purpose road race tire - Refreshed for 2021 with a new lighter weight casing, upgraded puncture protection, and a revised tread pattern

Our lightest and fastest road tire - 170 TPI casing - HYPR-S compound - K2 puncture protection The Maxxis High Road SL is the fastest and lightest road racing tire we have ever produced. Starting with our lightest and most supple 170 TPI casing, we add our K2 puncture protection, and top it with our fastest compound: HYPR-S. This new compound retains the grip found on the original High Road, but reduces rolling resistance by 12%.

- Angled side knobs work together with the Super Race carcass to create the best cornering grip. - Super Race carcass (Souplesse construction) for a particularly smooth ride with low rolling resistance and high puncture protection. - New boomerang profile for the best uphill traction and ideal rolling behavior. Specs: - Tire Diameter/ISO: 700C/622 - 67 TPI - Bead: Folding - Tire Compound: Addix Race - Tire Technology: Super Race, TL Easy - Tire Type: Tubeless Ready - Tubeless Technology: Tubeless Easy

Make your mark on the gravel scene with the Gravel Grinder. This tire combines a fast rolling diamond center with aggressive shoulder knobs that only hook-up when the terrain gets soft, muddy, or a bit sketchy. This handmade clincher combines a supple, yet durable Corazza Armor casing for improved sidewall protection, excellent puncture-resistance from our PPS Ganzo + PPS2, and a high mileage, grippy, natural SMARTplus tread compound. 260TPI SuperPoly casing.

The Grand Prix 5000 is the best all-rounder in the field, brought to a whole new performance level. Ride faster, more comfortably, and with increased puncture protection. Its Active Comfort Technology absorbs vibrations and smooths your ride. Lazer Grip technology, designed to make you one with the road, features a lasered micro profile structure that expands over the tire’s shoulder and provides outstanding cornering. The Vectran Breaker is lighter, more flexible and protects more effectively against cuts than comparable nylon. With incredible tear resistance at a very low weight, it possesses exactly the right properties to be a premium puncture protection insert, while not adversely affecting rolling resistance. The Grand Prix 5000—made to make you better. With Continental's unique and legendary BlackChili tread compound, produced only in Germany, they have revolutionized the sport of cycling. This compound answers the eternal question of the best balance of grip and rolling resistance for cycling. Regular test wins confirm the measurable and noticeable advantages for cyclists, established in both the lab and on the road. The latest polymers, as well as specially developed carbon black particles and filler materials, guarantee ultimate performance.

Schwalbe One Tires. Schwalbe's fastest and most reliable competition tire. Featuring a the new OneStar Triple Compound.

Race it hard or just head off the beaten path. The Strada Bianca takes the proven construction of the Paris-Roubaix and adds volume to take you comfortably over less-than-perfect surfaces. Challenge introduces STRADA BIANCA H-TLR 45. The staple herringbone-design tire proves its handmade performances on rougher terrain with a new gravel-specific construction and an added beefier new 45mm size. The STRADA BIANCA 45 is the tire designed to take you comfortably rolling over rough pavement, cobbles, sandy or hardpack fields, to literally floating over the more enduring dry, rocky terrains. It is the first 45mm tire in the Challenge range.

The Schwalbe One family provides the right tire for the latest gravel bike trend. The smooth rolling G-One profile and Tubeless Easy technology make it a pleasure to ride over forest paths and rolling fields. - Tubeless-Easy with MicroSkin fabric for gravel riding - OneStar compound helps to achieve an extremely low rolling resistance

The Schwalbe One family provides the right tire for the latest gravel bike trend. The smooth rolling G-One profile and Tubeless Easy technology make it a pleasure to ride over forest paths and rolling fields. - MicroSkin Casing

IRC’s lightest and fastest road tubeless tires. A wider tread and cross-sectional shape provide improved rolling resistance. This tire is designed for high speed in dry weather conditions. - The Formula Pro Tubeless Light is IRC’s fastest road tubeless tire - A wider cross-sectional shape provides improved rolling resistance - This tire is designed for high-speed riding

A unique semi-slick diamond design pattern offers a lower rolling resistance and comfort ride on the street. This tire is also an excellent choice for the hard pack off-road trails and XCO races.

The Roadlite tubeless is specifically developed for training and endurance riding. IRC uses a high abrasion resistant rubber compound for the tread to increase durability and low rolling resistance. Additionally, the 120tpi casing promises a silky ride performance. - The Roadlite tubeless is specifically developed for training and endurance riding - IRC uses a high abrasion resistant rubber compound for the tread to increase durability and lower rolling resistance - The 120 tpi casing promises a silky ride performance

Using IRC's tubeless technologies, the tire fits perfectly on your tubeless compatible wheels. A 182TPI casing let you ride smooth on any rough surface. - With a 182 TPI casing, SERAC CX cyclocross tires provide a fast, smooth, and comfortable ride on any rough ‘cross course - Inner-air-seal prevents leakage

Using IRC's tubeless technologies, the tire fits perfectly on your tubeless compatible wheels. A 182TPI casing let you ride smooth on any rough surface. Serac CX X-GUARD offers you extra puncture resistance. - With a 182 TPI casing, Serac CX cyclocross tires provide a fast, smooth, and comfortable ride on any rough ‘cross course - Inner-air-seal prevents leakage - X-Guard adds a 40×40 TPI double-layer bead-to-bead puncture barrier for incredible durability

- Compound: ZSG AGILE COMPOUND - Casing: Advanced Extra Alpha Cord

The Expanse TCS folding tire is an ideal choice for fast riding on smooth gravel and mixed-surfaces. It's tubeless-ready, so you can ride lower pressure and not have to worry about pinch flats. - Designed to meet ETRTO standards, TCS (Tubeless Compatible System) tires feature the best of both worlds: they boast the ride benefits & reliability of a tubeless tire with the minimal weight of a tube-type tire.

Elite-level road meets renowned tubeless simplicity in sizes that accommodate exploration while digging deep on lonesome roads. Exposure TCS tires mean big days and few boundaries. - Supple tubeless casing allows for lower pressure and improved traction - High volume road casing enables comfortable ride - Dual Compound Rubber means a fast-rolling tire with great corning traction - Smooth centerline with a diamond file outside edge for increased off-road performance - Designed to meet ETRTO standards, TCS (Tubeless Compatible System) tires feature the best of both worlds: they boast the ride benefits & reliability of a tubeless tire with the minimal weight of a tube-type tire.

Continental's Grand Prix 4000 S II boasts Conti's Black Chili rubber compound for low rolling resistance, impressive traction and long wear, making for one of the fastest tires in the peloton. The GP 4000 S II also uses a tough Vectran sub-tread for exceptional puncture protection, while the 330-tpi casing delivers a velvety-smooth ride. If you're looking for the ultimate road tire, you've found it.