700c, 27-Inch & 650c

- 120tpi casing with Aramid puncture protection—TechBELT - SmartEVO compound

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.

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 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.

- New tread design, improved compound and quality workmanship - The Schwalbe One sets a new benchmark in terms of quality and performance

- Slightly knobby tire for light trail use - Wire bead - 700 x 41c - ISO 622

- Street urban comfort tire w/smooth center grooved for traction & lateral knobs for grip - Wire bead

- Hybrid/touring tire for fast rides and commuting - Wire bead

The Corsa has been the race-day choice of pros for years and is now better than ever. The Corsa achieves the holy grail of performance: speed, suppleness, durability, and reliability. Whether winning a Grand Tour, or a local crit, the Corsa family delivers world-class performance. - 320 TPI Kevlar reinforced Corespun-K casing for increased sidewall protection - 4 separate Graphene rubber compounds

- Urban tire with a durable thick rubber casing - Smooth center tread with knurled shoulders for water evacuation - Extra-thick side walls resist lateral flexing - CB - Cable Bead, type of bead found on economically friendly folding tires that provides a durable, easy-to-install tire bead - 30 TPI

- Recreational tire with raised center for low rolling resistance - Fits older road bikes - Size: 27 x 1 1/4

Smart Sam goes well on any terrain and even on the road it rolls effortlessly. It will roll over just about anything in the Double Defense version.

Thanks to its DuraSkin anti-tear fabric, the Grand Prix 4-Season holds up under extreme conditions. In the Paris – Roubaix race, the “Hell of the North”, cyclists equipped with DuraSkin enhanced tires have the fewest tire-related problems during the race. Incorporating Continental's special wear resistant carbon compound, the tire is characterized by very good mileage performance as well as excellent adhesion on wet roads and at low temperatures. With the 23mm, 25mm, 28mm, and 32mm versions, the Grand Prix 4-Season makes it possible to select the right tire for various road qualities and comfort requirements. A double Vectran Breaker belt under the tread raises the puncture and cut protection to the highest level available on the market.

Latkat is a grip-focused winter road tire that gives riders control and confidence on cold, wet roads. Our Gripkraft rubber compound boosts wet-weather braking and cornering grip for predictable performance on pavement. - 60 TPI tubeless-ready casing - Siped and grooved tread for traction in wet winter conditions - Gripkraft winter rubber compound for wet-grip performance and abrasion resistance - Reflective sidewall stripe for visibility on low-light rides - Bead-to-bead puncture protection for dependability We design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to premature casing wear. Always check with rim manufacturer to verify rim and tire compatibility before assembly or use

FAAAASSSTT! The Nano 40c is built for speed, and let’s just politely say it delivers. A 40mm, rounded profile and an elevated centerline provide enough volume for lower tire pressures and a smoother ride while still reducing drag and rolling resistance. This makes for an all out gravel destroyer that can still appease those clamoring for a truly big cyclocross tire. Winner? We think so. So does everybody else. Don't believe us? Just ask. Everybody's irrefutable favorite, 'nough said. Usage: Gravel / Cyclocross Conditions: Dry to Damp / Hardpack to Sand - TCS Light/Fast Rolling: 530g, Dual DNA compound - Race Tube-Type: 470g, DNA compound - Comp Tube-Type: 550g, DNA compound

- Excellent commuting tire - Ciudad offers a grooved-slick tread for low rolling resistance - Kevlar Inside puncture protection will keep you commuting even on the roughest roads, while the reflective sidewall provides increased night visibility - Bead: non-folding - Weight: 500 grams

- Perfect for commuting and training

The strongest version of GravelKing now has even better puncture resistance, with the use of ProTite Shield Plus for withstanding tough conditions. Developed with ZSG compound to enhance durability and wear resistance. Lightweight, ultra-thin 'Ax-Alpha Cord' has been used to make it even lighter in weight. - Ideal for gravel and dirt, rough and smooth pavement - Folding (Aramid) Bead with ProTite Shield Plus Protection

The Speedster is designed for rolling speed and minimal drag on hard-pack or paved terrain. The honeycomb center tread provides virtually zero rolling resistance and unbelievable tread life. This feature also gives you excellent traction in dry or wet conditions. Large diamond shaped side knobs provide the grip you need in corners, while the tread knobs get smaller towards the center for the ultimate speed and traction. And with its balloon-style structure, you’ll feel like you’re floating on air.

- 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%.

Built on the same concept as our Gravelking and Gravelking SK models, the EXT version incorporates the same technology on top of a specially designed tread tailored to work best in muddy and sloppy conditions. Better puncture resistance while retaining the superb balance of a light riding feel and grip. - Ideal for gravel and dirt, Mud/Loose condition model, better puncture resistance while retaining the superb balance of a light riding feel and grip - Available in Black Tread and Black or Brown Wall Colors - Folding (Aramid) Bead with ProTite Shield Plus Protection - Available in 700 C and a variety of widths - TLC in widths 33mm and larger

Volume, speed, and consistency. The Cross Boss’ even center tread shelf provides smooth and fast acceleration while more open side knobs help clear muck. A rounded, high-volume profile designed ground-up for tubeless usage provides plenty of room to modulate tire pressure while dual compound, Dual DNA rubber and defined cornering channels keep riders grinning for more turns. From singletrack to the circuit, the Cross Boss is here to bring it. Usage: Cyclocross Conditions: Dry to Damp / Hardpack to Loam - Weight: 400g - Compound: Dual DNA

- The Cycl-e DT and DTs are developed for urban and commuting use, where rolling efficiency, reliability and maximum grip on any surface and on any condition are essential. - Outperforms on safety and built to match rolling and puncture protection industry standard - Cap & base tread construction guarantees grip and rolling on the outer rubber, and protection and reliability on the inner - Solid multi-ply overlapping casing structure - ECE-R75 compliant - Best in class wet grip

Nano 40 is built for speed. A nearly uninterrupted centerline provides swift efficiency on hardpack terrain while staggered outer knobs allow you to stay on the gas while hammering up chunky climbs or hanging on through loose gravel corners. The high-volume 40mm casing allows for lower tire pressures and a smoother ride while still reducing drag and rolling resistance. This makes for an all-out gravel destroyer that still appeases those clamoring for a truly big cyclocross tire. Everybody's irrefutable favorite, 'nough said. SG2 PUNCTURE PROTECTION: This tire is available with our all-new SG2 Puncture Protection, which is a lightweight nylon insert that provides bead-to-bead coverage and ensures every area of the tire is defended against slashes and punctures. As events become progressively rougher and cyclists pedal farther, gravel gets tougher. It only makes sense for gravel tires to become tougher as well. - Nylon fibers have a flat profile, which reduces the amount of rubber needed to fill the gaps between fibers and minimizes weight. - Protected SG2 gravel tires feature a 120tpi casing, which improves suppleness compared to a traditional 60tpi tire. - SG2 was specifically designed to be a puncture protection layer, but it also improves air retention and eliminates seeping at the sidewall. FEATURES: - Minimal rolling resistance due to raised, consistent centerline tread. - Long, staggered knobs provide steadfast traction without cutting down on speed. - TCS Light/Fast Rolling versions of the Nano 40 tire provide ultimate tubeless reliability for gravel or cyclocross racing. - Race and Comp level tires are designed to provide optimal performance at a competitive weight but must be used with inner tubes. Race and Comp level tires are not tubeless compatible.

The Terreno Zero features a Corsa-inspired tread design for paved surfaces and hard-packed gravel. The smooth center rolls fast while the side tread "scales" provide durable bite when cornering and braking. - Designed for paved surfaces and hard-packed gravel - Graphene compound

An all-conditions road tire designed for training or race-day events. The Rubino Pro utilizes Vittoria's proprietary Graphene structure to offer a long service life, puncture protection, and responsive handling traits. - 150 TPI nylon casing - Graphene rubber compounds

The Kenda Kwest Hybrid Tire is a road tire designed with a smooth rounded tread with large water dispersion grooves. - Kenda endorses the use of fluid based sealants only in specifically designated Kenda sealant compatible tire

Kenda Street K40 Tire - 27 x 1 3/8 Clincher Wire Black/Tan

- The Cycl-e DT and DTs are developed for urban and commuting use, where rolling efficiency, reliability and maximum grip on any surface and on any condition are essential. - Outperforms on safety and built to match rolling and puncture protection industry standard - Cap & base tread construction guarantees grip and rolling on the outer rubber, and protection and reliability on the inner - Solid multi-ply overlapping casing structure - -15% rolling resistance versus the non-sport version - ECE-R75 compliant - Best in class wet grip

Semi-slick CX racing tire with aggressive cornering knobs - Aggressive cornering knobs - EXO Protection - File tread design optimized for grass and hardpack - Tubeless Ready (TR) The Speed Terrane features a familiar file tread pattern optimized for early season cyclocross races. Micro-diamond knobs adorn the tread surface to offer blazing speed on hardpacked surfaces, while stacked paddle knobs down the middle offer unrivaled climbing and braking traction so you can attack whenever you like. When the course gets twisty, the siped and offset cornering knobs will dig in to give you the support to brake later and push your tires as hard as your legs. Worry less about your tires and more about the holeshot!