700c, 27-Inch & 650c

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 clincher with 120TPI nylon casing provides both performance and durability. PPS - The Puncture Protection Strip is a special fabric placed between a tire's tread and casing to increase resistance to punctures.

Limus means mud in Latin, which is exactly what Challenge's Limus Open tire excels in. Its deep, aggressive, and well-spaced knobs cut through muddy ground to grip great. And, you'll be zooming through the corners and off-camber sections, too, thanks to its side knobs, while you'll power up inclines with ease thanks to the tall center knobs. The Limus is built on the same supple 300tpi hand-made casing as their renown tubulars, and there's an anti-puncture strip under the tread and polyester in the sidewalls for excellent durability. Handmade - Handmade tires combine many attributes to create the most comfortable and lowest rolling resistance tires. PPS - The Puncture Protection Strip is a special fabric placed between a tire's tread and casing to increase resistance to punctures.

A fast-rolling center section, flexible shoulder lugs and fine sipes give Continental's Contact II tire a great grip. It also boasts Continental's SafetySystem for exceptional puncture protection with little added weight and Reflex reflective sidewalls.

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.

The Ultra Sport II is a modern tyre for touring and competition which convinces with its excellent price-performance ratio. The size range provides the finishing touch in the coordination of use. This tyre scores with a lot of grip, the silica-based tread compound and very high mileage.

The Ultra Sport II is a road tire built to Continental's exacting standards, providing you with the optimal blend of low weight, puncture resistance, and long life. It sports a strong, supple 180 thread-per-inch, 3-ply casing and is at home in all situations, from miles of training to amateur racing to all-day centuries.

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

Serfas' Seca Survivor Road Tire is the ultimate high-mileage training tire. It delivers an ultra-long tread life along with a great road feel. Thanks to its 4 glass- and thorn-thwarting layers, the Survivor has superior puncture protection as well. Plus, this tire is rated to 130 psi to keep you flying on smooth pavement.

Serfas' Seca Wire Bead Road Tire is the ultimate training and commuting tire. Its center hard tread offers low rolling resistance and long life while its softer sides provide excellent cornering. This tire also boasts Serfas' superior flat protection.

27 x 1-1/8-inch replacement tire from Sunlite. - Bead: Wire - TPI: 27

- Trail/road tire with raised center, assertive lateral lugs - Wire bead - Size: 700 x 38c

Every watt, every bit of energy counts whether you're racing or training; make sure you're getting the biggest aero advantage with Zipp's Tangente Course Tire. It takes advantage of Firecrest technology to reduce rolling resistance and increase airflow over the leading edge of the tire, meaning you work less to go faster. The rubber used in the Tangente tire is formulated for grip and acceleration, particularly in dry conditions, and the 120 TPI casing features a nylon puncture protection strip so you get as many miles as possible out of this rugged tire. It's light too, complementing your already feathery race day rig.

The Tour is a great budget urban or touring tire. Offered with or without reflective sidewalls for extra nighttime cycling safety. Excellent wet weather tread. - Wire bead

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

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

- Recreational tire with raised center for low rolling resistance - Size: 700 x 25c

- Street tire - Grooved tread with directional siping - Wire bead

The Thunder Road is a smooth-rolling tire for use on road bikes. - Ideal replacement tire for casual road or pavement use - Clincher design

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

- 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

- Grooved tread with directional siping - Street tire - Wire bead - Size: 27 x 1 1/8 (ISO 630mm)

Perfect for stylish urban steeds, Continental's Retro Ride matches old-world looks with modern technology. Its smooth center tread ensures low rolling resistance, easy pedaling and confident cornering, making it great for commuting and all-around riding. A tough belt beneath the tread provides excellent puncture protection, and the Reflex reflective stripes add a bit of safety.

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

The wire bead version of the new Zaffiro tread offers many of the same traits that established the Zaffiro family as the standard in performance training but at an entry-level price point. Employing the same tread profile as the Zaffiro Pro, the durable, rigid-bead Zaffiro is the top choice for replacement tires at a great price. - Extremely durable tires for performance training - Modern tread design for long-lasting durability

The All Terrain is always up for adventure. From long-distance touring to light-duty offroading, this tire offers impeccable handling that won't let you down. Usage: Trekking / Comfort Conditions: Dry to Damp / Pavement to Hardpack Compound: DNS Casing: Durable Bead: Wire 26" Comp - Tube Type: 635g 32c Comp - Tube Type: 455g 37c Comp - Tube Type: 540g

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.

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

Michelin's Mud 2 is a proven World Cup performer. The Mud 2 sports a unique tread pattern with center knobs split into two distinct blocks. The result is superb mud evacuation, exceptional grip, outstanding cornering adhesion and low-rolling resistance. And, the supple casing helps take the edge off the rough stuff.

- 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

The Double Fighter with a fresh new design and in a multitude of sizes. With a robust rubber sidewall, it fears neither the city nor the countryside. It rolls along the asphalt effortlessly and in silence. Its shoulder lugs allow it to stay on the right track, whether on park paths or gravel roads. Ideal for making knobbly off-road tyres into a swift city racer.