700c, 27-Inch & 650c

Versatile and confidence inspiring, the Gravdal securely navigates through harsh winter conditions with concave carbide studs for added traction in icy conditions. - Siping creates a more conforming lug for added traction - Concave carbide studs provide traction in the iciest conditions - Reflective strip on sidewall makes you more visible when riding in low-light conditions - Fits most bikes with cantilever or disc brakes

The Caldera is designed as a durable tire that can handle the rigors of high-mileage training or commuting. - Thick crown tread provides longer-lasting wear - Durable 27 TPI casing

- Hardpack mountain bike tire designed to run in specific directions for the front and rear - In front, the Camber rolls fast, confidently grabbing corners even in the loose stuff - Reversed on the rear, the Camber gives you the same confidence in the corners, plus additional acceleration and climbing traction - Folding bead option also provides lightweight EPS puncture protection layer for outstanding performance and durability

The Sensamo Control provides all-season grip for urban riding and commuting. - Deep tread sipes and all-season rubber provide excellent grip - Reflective sidewall for increased low-light visibility - APL 0.7mm puncture protection layer under tread

The Sensamo Control tire comes standard with APL anti-puncture technology and reflective sidewalls. Offering more traction than a standard commuter tire, the Sensamo is ready to handle your commute year-round, giving you an edge in winter conditions. - Deep tread sipes and all-season rubber provide excellent grip? - Comes standard with APL anti-puncture technology - Reflective sidewalls for high visibility? - Recommended for Urban, Commuting, and Winter riding

- 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

This is the ultimate choice for road riders who want more volume for training or competition.

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.

Completely renewed, sporting a dynamic tread pattern design. Matches with a race bike, as well as a classic city road bike. Available in a wide range of dimensions and colors. PureGrip Compound Based on activated silica compounds, this technology was originally intended as an 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. Whilst 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). Suitable for E-Bikes For our E-Bike tyre we fall back on over 100 years' 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.

Its strength is its speed. The non-slip slicks with rough tread score well, especially on tarmac. City bikes and single speed and fitness bikes profit from the momentum whilst being highly comfortable. This helps the tire rise to all challenges. The Sport CONTACT II impresses by means of the new Vulkanette design with grip, double puncture protection and its smooth running.

Developed for the essential basic training at home. Particularly smooth running. The durable cold-running compound stops heat build up. - Suitable for training on rollers/home trainers only.

The Contact Plus tire is the ideal allrounder on any type of roads and paths that enhances every bike, and thanks to the plus in puncture protection, nobody will be left behind with a flat tire. - Suitable for E-Bikes and packed with protection to keep you rolling - Reflective sidewall stripe for added visibility - Specially designed for e-bikes, the SafetyPlus Breaker features an added layer of highly flexible natural rubber into it's design. The result is an extremely cut and puncture resistant breaker ply which has a low rolling resistance thanks to its high elasticity. This helps by saving battery life and the environment - E50 e-bike rating features a high quality structure with puncture protection to reduce premature wear brought about by the additional driving force

With our PolyX Breaker, we bring our car expertise to the bicycle tire segment: Polyester has been used successfully for years in car tires and been tried and tested many times. The extremely resistant polyester fiber is woven tightly crosswise. In this way, a very high fabric density is reached, which not only makes the Breaker more resistant to foreign objects but is also especially resistant to punctures. The rolling resistance is also not negatively affected by the PolyX Breaker. - The right tire when it comes to tough conditions. - The right choice for a strong performance in the urban field and on tour.

Continental's Gatorskin combines 3 flat-protection technologies into one fast-riding, high-mileage racing and training tire. It features a super-fine 180 thread-per-inch casing, a bead-to-bead layer of DuraSkin, and is finished with a Kevlar-reinforced top layer. The result is a light tire that rolls and corners with the best of them while providing flat protection second to none. - Weight: 290/310/360/365/390 grams (23c/25c/28c/32c/27 x 1 1/4) - PolyX puncture protection - DuraSkin sidewall protection

Continental's Gatorskin Folding combines 3 flat-protection technologies into one fast-riding, high-mileage racing and training tire. It features a super-fine 180 thread-per-inch casing, a bead-to-bead layer of DuraSkin, and is finished with a Kevlar-reinforced top layer. The result is a tire with a lightweight folding bead that rolls and corners with the best of them while providing flat protection second to none. - DuraSkin sidewall protection - PolyX puncture protection - Weight: 220/240/320/325 grams (23c/25c/28c/32c)

Continental's ultra-tough Gator Hardshell combines 3 flat-protection technologies into the ultimate distance and training tire. It features a flat-busting, bead-to-bead layer of DuraSkin and an extra-wide Poly-X Breaker anti-puncture strip. But Conti wasn't done yet. They added material in the tread to improve mileage and lend another level of puncture resistance.

Continental's Grand Prix 4000 S Reflex II boasts Conti's Black Chili rubber compound for minimal rolling resistance, great traction, and long wear. The GP 4000 boasts a tough Vectran sub-tread for exceptional puncture protection, while the 330-tpi casing delivers a velvety-smooth ride. And, the Reflex model comes with a reflective strip along the sidewall for additional visibility in low-light conditions. If you're looking for the ultimate road tire, you've just found it.

Continental's ultra-tough Gator Hardshell combines 3 flat-protection technologies into the ultimate distance and training tire. It features a flat-busting, bead-to-bead layer of DuraSkin and an extra-wide Poly-X Breaker anti-puncture strip. But Conti wasn't done yet. They added material in the tread to improve mileage and lend another level of puncture resistance. Plus, the folding bead keeps the weight low. Weight: 23c: 250 grams 25c: 270 grams 28c: 350 grams 32c: 385 grams

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 All Season TR tires are ready to go the extra mile, providing confidence in all weather conditions and boosts your protection for a trusted ride. - Tubeless ready (TR) carcass construction is robust and impervious against damage and penetration from foreign objects - 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 - Black Chili Compound features special synthetic rubbers combined with proven natural rubber to high-performance tread mixtures, to optimize rolling properties and grip

The Strada LGG features the traditional chevron pattern for excellent grip in wet or dry conditions. Inspired by the legends of the sport, the LGG provides a supple ride, durable yet lightweight construction, and puncture-protection belt under the tread. - Slightly textured center-tread with traditional chevron side-tread pattern provides excellent grip in wet or dry conditions - Integrated puncture-protection belt - Open tread and lightweight construction

- 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

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

Giant's Road tire features a raised center ridge for a smooth ride and fast rolling. The side treads give you just enough grip for confident cornering.

- Multi-use tread for city, comfort, commuting, and trekking bikes - BlackBelt aramid fiber belt between the casing and tread increases puncture resistance

The Serac CX Sand X-Guard handles great in the dirt without giving up speed on the tarmac. Whether you are on gravel, pavement, dirt, or single track, this tire performs. - Diamond tread combines grip with low rolling resistance - 182 TPI casing - Inner-air-seal prevents leakage - X-Guard adds a double-layer bead-to-bead puncture protection

The Kenda Kwick Hybrid Tire features an aggressive semi-slick design with an all purpose tread pattern and a 60 tpi casing. - Aggressive semi-slick design - Kenda endorses the use of fluid based sealants only in specifically designated Kenda sealant compatible tire

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

Kenda K830 Street tire is durable and economical choice for hybrid bikes.