700c, 27-Inch & 650c

Commuting to work or school on black ice just got faster and easier with the Xerxes. 140 studs provide unrivaled control on those morning rides where ice patches threaten your commute. When a layer of snow conceals black ice, the ultra-narrow profile easily slices through the fluff and gets straight to business providing extreme traction in these extreme conditions. Run the Xerxes at minimum pressure for traction performance, and maximum pressure for a quieter and faster ride on clean roads. - 140 Steel Carbide Studs - Fast-rolling center tread - Narrow profile to fit in most 700c frames - 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 pre-mature casing wear and stud loss.

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 TLR clincher with 120TPI nylon casing provides both performance, durability, and puncture protection when combined with the appropriate tubeless sealant. TLR - TLR tires versions can be ridden tubeless with the addition of sealant but can also be run with an inner tube. - A bead-to-bead inner coating gives added puncture protection to these tubeless ready tires and greatly reduces gradual loss of air pressure. An aramid bead protection strip increases tire longevity and reduces rim chafing.

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.

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 tire takes tubeless to a higher performance level by combining TLR's properties with a handmade construction for the ultimate in traction and ride quality. This tire includes PPS Ganzo, a lightweight and supple Puncture Protection System placed between the tread and casing to increase resistance to punctures. And puncture protection is enhanced when combined with the appropriate tubeless sealant. 260TPI SuperPoly casing.

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 tire takes tubeless to a higher performance level by combining TLR's properties with a handmade construction for the ultimate in traction and ride quality. This tire combines a supple, yet durable Corazza Armor casing for improved sidewall protection, excellent puncture-resistance from our PPS Ganzo, and a high mileage, grippy, natural SMARTplus compound. And puncture protection is enhanced when combined with the appropriate tubeless sealant. 260TPI SuperPoly casing.

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 Giro is an economical tubular tire constructed of natural rubber, a lightweight 2-ply cotton casing and a durable tread compound. Because it is both rugged and fast, it makes for a great training tire. The Giro handles up to 145 psi, too.

- Premium mobility for design enthusiasts. - Urban profile packed with the latest technology. - The perfect symbiosis between light-rolling and puncture protection reflected in this specialized tire designed for the City Jungle. - Faster? Not a problem with approval for E-Bikes up to 50km/h! PureGrip Compound Based on activated silica compounds, this technology was originally intended as a performance level compound, but after intensive development at our Korbach Research and Development Department Facility, an advanced new compound with outstanding grip and cross-country properties was developed. This new rubber mix, given the self-explanatory name "PureGrip", is ranked just behind our BlackChili Compound and is being used in our performance products both in the road and mountain bike sectors. While providing great grip, it is also long-lasting and highly durable—both characteristics of Continental tires, which are exclusively manufactured in the factory in Hefei (Asia). SafetyPro The new SafetyPro Breaker designed from nylon textile. Cross-woven textile fiber netting that is simultaneously robust and flexible. Maximum puncture protection with minimal added weight. The risk of punctures resulting from glass or sharp stones is substantially reduced. E50—Suitable for E-Bikes For our E-Bike tires, we relied on over 100 years of experience with moped and motorcycle tires. All of our city/trekking tires are rated to a standard speed of at least 25 km/h. Those tires marked e50 are also certified for S-Pedelecs. With their high-quality structure, puncture protection is high and the rolling resistance is low, offering protection from premature wear brought about by the additional driving force.

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.

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 Tubeless—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.

When speed is a top priority and the road is unpredictable, the Strada USH stands out as a light and fast tire that can handle it all. Combining a fast rolling center track with a scaled up herringbone tread your let it fly on straightaways and corner with conviction. This long lasting and hard wearing tire has you covered from commuting to big adventure days in the saddle. The USH is named for the airport code of Ushuaia on the island of Tierra del Fuego, Argentina. Ushuaia is the southernmost city in the world, and the ultimate destination for adventure bike touring. Size: - 700 x 40 mm Weight: - 472 grams Part #: - D10032 Product Features: - Fast, durable and smooth rolling center tread. - Exaggerated chevron pattern on sides for excellent cornering traction. - Integrated puncture protection belt under the tread. - This tire requires a tube. Tubes sold separately.

The CDG is the airport code for the famed Paris airport, Charles De Gaulle and pays homage to the brutal cobbled roads used for Spring Classics like the Paris-Roubaix. This incredible road tire features a center section of tightly packed mini nubs that offer traction when you need it without sacrificing speed. The tread transitions to more aggressive, larger nubs towards the outside so you can lean into the corners with the utmost confidence. Even during a rainy day in Belgium. Size: - 700 x 30 mm Weight: - 420 grams Tire Type: - Tubeless Ready Part #: - D20089 Product Features: - Unique center-tread pattern provides excellent grip in wet or dry conditions. - Side nubs offer excellent traction while cornering. - Integrated puncture-protection belt. - Lightweight construction. - Tubeless Ready. Can be used tubeless or with an inner tube.

The big news from Donnelly is the upcoming EMP gravel tire, which pulls its name from the airport code for Emporia, Kansas, home of a kinda popular gravel race that crushes souls every year. The tire is a departure from their usual tread design, getting a tighter tread block pattern without a well-defined center strip like most all of their other tires. It’s still designed to roll fast, which is key if you’re racing any long distance gravel bike event, but with bigger side knobs to handle more aggressive cornering. - Smooth-rolling center knobs and aggressive shoulder lugs - Soft rubber compound for extra grip and shock absorption - Integrated puncture protection belt under the tread - Tire Intended Use: Gravel - Labeled Size: 700 x 38 - Tire Bead: Folding - Tire Diameter: 700c - Tire Type: Tubeless Ready Clincher - Weight: 484 - Weight (oz): 17 - Flat Protection: Tread

- A classic road tire featuring the traditional chevron tread pattern - The LGG provides a supple ride, durable yet lightweight construction, and puncture-protection belt under the tread - 120 TPI version is dual compound tread: 70a in center, softer 60a on sides. 60 TPI is single compound tread 70a

- An adventure tire designed for mixed conditions - Smooth-rolling center knobs and aggressive shoulder lugs - The combination of smooth-rolling center knobs and aggressive shoulder lugs provide great traction and durability for gravel roads, trails, cyclocross, urban assault and even pavement - The MSO will fit on your cyclocross or gravel bike, commuter, or touring rig - MSO is the airport code for Missoula, Montana, home of the Adventure Cycling Association and the inspiration for countless cycling journeys - Designed to bridge the gap between pavement and blazing your own trail

BOS is the airport code for Boston, Massachusetts, the original hotbed of North American ‘cross and home to some of the harshest weather and the toughest courses. If you’re pinning on a number in New England you better be ready for rain, roots, ruts and mud. And, you better have a set of Donnelly BOS tubulars in your quiver. This tire is even more aggressive than our mud-proven PDX. It features buttressed side-knobs for outstanding traction in super muddy corners and off-cambers, and a center tread pattern that is all bite when it comes down to a tractor pull. Size: - 700 x 33mm Weight: - 386 grams Type: - Tubular Part #: - D50030 Product Features: - Buttressed side-knobs for superior cornering traction. - Unique center knob pattern designed for maximum traction when you need it most. - Soft rubber compound provides extra grip and shock absorption. - Tubeless design means an airtight casing with no inner tube to puncture. - Rubber-coated sidewalls are extremely durable and prevent deterioration from water, mud and dirt. - No additional sidewall coating necessary. - All in one construction means tread will not peel away from the tubular casing. - Precision design creates a straight tire with no variances in size or alignment. - The tire and base tape are consistently straight making it easy to glue and install to your wheel. - A removable valve core allows for valve extenders installation as well as insertion of tire sealant. - Liquid sealant can be used with all Donnelly tubulars to prevent or repair typical punctures.

Over 10 years of aero product development with a focus on real-world performance has led us to tire development. Tire shape and construction greatly influence aerodynamics, rolling efficiency, and your confidence. SES Road Tires are proven in CFD and the wind tunnel to reduce drag and are constructed to deliver rolling efficiency, durability, and a confidence inspiring ride—regardless of the weather. - Application: Road, Road Race, Triathlon, Time-Trial, All-Road - Smart ENVE System Aero Optimized Shape and Tread Design - Natural and Synthetic Rubber Compound w/Activated Silica for All-Weather Performance - Tubeless Ready and Inner-Tube Compatible - Hookless and Hooked-Bead Rim Type Compatible - Inner-Rim Width Compatibility: 25c (17-21mm); 27c, 29c, 31c (17-25mm) - Weight: 25c (255g), 27c (265g), 29c (275g), 31c (285g) - Vectran Protection Barrier

Genuine Electra tires The same great tires that your Electra originally came with. Propelling you along the pavement. Boardwalk. Whatever. Product details - Semi-smooth tread Amsterdam tire - Tube not included

The Kenda Klondike is a great winter tire for cyclocross or trekking-commuter bikes in light snow. Carbide tipped studs provide traction on ice. - 100 polymer-body carbide tip studs

- Fast-rolling tread - Wire-bead

The Black Wall in K34 Tread is a great tire for any road bike. As avid everyday riders, Kenda knows what goes into a great commuter tire. Fast rolling, long life, and superb puncture protection are just a few of the reasons people prefer Kenda. Whether you're riding to the store or out for a weekend, Kenda will help you get safely where you're going. - K34 tread pattern - Made from quality Kenda rubber - ETRTO: 32-630 - Wire Bead

- Smooth tread offers minimal resistance - File tread on shoulders ensures cornering confidence

Kenda Street K35 Tire - 27 x 1-1/4 Clincher Wire Black/Tan 22tpi

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

The Kenda Kross Plus features a smooth center section with aggressive side knobs that provides off-road cornering traction and lower rolling resistance, making it great for commuting or riding the local trails. - Semi-slick design - Kenda endorses the use of fluid based sealants only in specifically designated Kenda sealant compatible tires

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

- Smooth-rolling tread pattern for street use - Deep grooves help sipe water away in wet weather

- Ultimate XC Racing tire with lots of speed and grip - Well suited for a variety of riding conditions. - Fast accelerating, hard-pack cross-country tire - Numerous knobs provide multiple contact points with the ground

- Enhance your riding experience with the Tubeless Ready version of the MICHELIN Power Cup tire - The tires used by the Cofidis team for riding at monuments and Grands Tours - Speed and comfort provided by Tubeless Ready technology, speed and efficiency inspired by MOTO GP technology - Light and reliable thanks to the Tubeless Shield technology and 4x120 TPI casing - Efficient handling and stability in both wet and dry conditions thanks to the MICHELIN GUM-X compound

- Makes the perfect economical trekking tire - The Excel has a reflective stripe on the sidewall, keeping you visible at night for city riding - If getting a reliable, high-performance trekking tire at an economical price is what you're after, the Overdrive Excel is the tire for you.

The Pursuer is great for logging trouble-free training miles and casual group rides. - Low rolling resistance, high mileage tread compound - Sport-level clincher tire The Pursuer is the newest road clincher in the Maxxis line. Taking what we learned from the development of the HYPR Compound for our flagship High Road tire, the Pursuer uses an all-new full-silica rubber compound. This new compound decreases rolling resistance while improving tread wear and cornering performance. For logging trouble-free training miles and casual group rides, choose the Pursuer.

Our most durable road offering - Diamond knurled slick design - MaxxShield for maximum puncture resistance - Training tire Our most popular training tire, providing excellent traction, durability, and plenty of road miles in any condition. Maxx Shield helps provide a tire that Re-Fuses to puncture.

Gravel and dirt road racing tire - Dual-Compound for longevity - Gravel-specific tread pattern - Tubeless Ready (TR) Maxxis' first gravel-specific tire, the Rambler, is designed with the volume you need for comfort and the tread you need for speed and control. Tightly packed center knobs are ramped for rolling efficiency on hardpack roads, and spaced-out side knobs provide predictable cornering in varied terrain.

At home on singletrack trails and gravel - Aggressive gravel tire - Optimal for off-road touring and adventures - Tubeless Ready (TR) The Ravager is a gravel tire for the riders out there willing to brave aggressive terrain with only their drop bars and a tiny amount of rubber beneath them. While other tires are designed to let you ride beyond the end of the road, the Ravager opens up new line choices, camping spots, and epic adventures where no road ever existed. Raised, square-edged center knobs provide climbing and braking traction on moon dust-covered trails, and oversized cornering knobs keep you and your gear out of the dirt to conquer another turn.

High-volume Tubeless Ready adventure tire - Diamond-knurled slick design - Dual-compound rubber - MaxxShield bead-to-bead protection - Tubeless Ready (TR) Our most popular training tire, modernized with tubeless technology and higher volumes for even more reliability and comfort. The familiar diamond tread pattern keeps things rolling smoothly, even as the pavement crumbles into gravel and hardpack dirt.

- Semi-slick tire for pavement, hard-packed dirt, and gravel. - Perfect for rides that are mostly smooth, with occasionaly off-road adventures

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

- 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%.

Pasela is Panaracer's standard all around touring or urban commuting tire. Its comprehensive size range ensures that you can find a Pasela for most any usage. Ride it and trust it. - Steel (Wire) bead

All around touring or commuting tire with ProTite protection, Panaracer's best-ever puncture prevention technology. Its comprehensive size range insures that you can find a Pasela for most any usage. Ride it and trust it. - Urban/Commuter tire

- Excellent urban or touring tire - 400D Lite Extra casing cord for a supple and responsive ride - ProTite now provides 25% more puncture resistance over older PT technology - Amber Sidewalls

With its aggressive tread and versatile high-performance GravelKing casing, riders will experience great handling characteristics through a wide range of tire pressure and excellent traction on wet or dry gravel or dirt.

Looking for a tire that's more tread aggressive and wider than the mixte-tread narrower Gravel King? The GravelKing SK might just be the tire you need for the more hardcore roads. Aggressive knobs, ZSG Natural rubber compound, puncture protection breaker and AX-A special low rolling resistance casing make the Gravel King a go-anywhere tire. - Black multi-use gravel tread - Aramid (Kevlar) folding bead

- Compound: ZSG AGILE COMPOUND - Breaker: TOUGH & FLEX SUPER BELT - Casing: Advanced Extra Alpha Cord

- Compound: ZSG AGILE COMPOUND - Breaker: TOUGH & FLEX SUPER BELT - Casing: Advanced Extra Alpha Cord

Gravel road riding is all the rage at the moment. It's great for cyclists who want to leave sealed roads behind and enjoy the freedom of cycling on unpaved roads. Designed to suit diverse touring styles, the GravelKing uses a mixture of properties that also accommodate on-road cycling. Featuring ZSG Natural compound, anti-flat Casing, and Advanced Extra Alpha Cord. - Black multi-use gravel tread - Aramid (Kevlar) folding bead

- The SS and SS+ feature an all-new tread pattern consisting of a smoother, diamond pattern center with more aggressive side lugs. - This tread pattern allows the rider to keep speed going into corners and maintain control throughout any transition a gravel ride could present. - The GravelKing SS incorporates a supple 126 TPI casing with a nylon puncture resistant belt and Panaracer's proprietary ZSG (Zero Slip Grip) compound. - The SS+ uses the same build as the SS but adds a bead-to-bead layer of Panaracer's ProTite puncture material for even more protection against tread and sidewall cuts for those extra demanding courses or rides with sharp flint rock.

- The SS and SS+ feature an all-new tread pattern consisting of a smoother, diamond pattern center with more aggressive side lugs. - This tread pattern allows the rider to keep speed going into corners and maintain control throughout any transition a gravel ride could present. - The GravelKing SS incorporates a supple 126 TPI casing with a nylon puncture resistant belt and Panaracer's proprietary ZSG (Zero Slip Grip) compound. - The SS+ uses the same build as the SS but adds a bead-to-bead layer of Panaracer's ProTite puncture material for even more protection against tread and sidewall cuts for those extra demanding courses or rides with sharp flint rock.

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

- Classic training tire with 60tpi casing, a puncture protection belt and higher overall thickness than the Road

- Designed for the needs of road and light off-road terrain. - Perfect choice for daily city adventures. - Knobby tread pattern, inherited from the MT60 RS, this tire provides agile road handling, comfort, grip and traction on dirt and gravel. - Lower center line for better rolling and higher lateral knobs to handle light off-road terrain. - Meets ECE-R75 and ECE-R88 certification requirements. - Suitable for traditional and electric bicycles.

- Built to cover a wide range of conditions. It aims to be the perfect travel buddy for your bikepacking adventures. - Featuring a reinforced and sturdy tubeless-ready 60tpi carcass plus a bead-to-bead protection layer. - Designed to resist lateral cuts on different grounds. - Lighter on the central part and more aggressive on the shoulder, the knobs are off-road oriented to promote rider support from light gravel to extensive trips. - ProCompound Gravel developed for extended mileage. - The combination of tread design together with the compound prioritizes traction and grip on different surfaces, designed to allow the rider to go everywhere.

The P ZERO Road offers a slightly thicker tread base for increased puncture protection. - 120tpi casing with Aramid TechBELT puncture protection - EVO compound

- The Cinturato All Road is your choice when tarmar, hardpack trails or light gravel are on your way. - Reinforced and sturdy tubeless-ready 60tpi carcass plus a bead-to-bead protection layer. - Designed to resist lateral cuts on different grounds. - A slick center line encourages fast and smooth riding on tarmac and pavement. - Progressively higher small paddle-knobs are designed to provide solid traction on light gravel, with more aggressive and solid knobs, derived from our Scorpion range, for cornering confidence and leaning. - ProCompound Gravel developed for extended mileage. - The combination of tread design together with the compound prioritizes traction and grip for quick riding on any surface either in town or countryside.

- Medium profile and tread spacing for riding quickly and confidently over a mixed variety of terrains, from hard to soft, whether for dry or wet - SpeedGRIP Compound formulation for on and off-road rolling efficiency coupled with high tear resistance and high wet grip - High-strength woven Nylon fabric from bead to bead for added cut and puncture protection - Multi-ply 127tpi Nylon casing construction - Tubeless-ready aramid folding bead optimized for wide rims and lower pressure riding

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

- The Cinturato Velo is designed around reliability in bad road conditions and heavy usage as priority and it still keeps Pirelli DNA thanks to its SmartNET Silica compound and confidence-inspiring handling. - Its patent pending Armour Tech construction combines a bead-to-bead high density layer to an aramid breaker and aramid fibers dispersed into the tread. - The SmartNET Silica compound coupled with Pirelli long experience in tread design, adds the safety and handling in any condition, whether it is wet or dry, Pirelli is already famous for.

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

- Gravel-racing specific tire, derived from our experience in the biggest competitions around the world and feedback from Pro athletes. - Tread design inspired by the Scorpion XC RC. - Key features: Higher average speed on straight and fast lines, improved lateral grip when off-road cornering.

- The Cinturato Velo is designed around reliability in bad road conditions and heavy usage as priority and it still keeps Pirelli DNA thanks to its SmartNET Silica compound and confidence-inspiring handling. - Its patent pending Armour Tech construction combines a bead-to-bead high density layer to an aramid breaker and aramid fibers dispersed into the tread. - The SmartNET Silica compound coupled with Pirelli long experience in tread design, adds the safety and handling in any condition, whether it is wet or dry, Pirelli is already famous for.