Challenges Gravel Grinder Open Tubular is the tire you need to make your mark in the gravel racing scene. It pairs Challenge's supple 260tpi tire casing with a smooth-rolling center tread and aggressive shoulder knobs for great riding characteristics, high speeds, and excellent cornering traction.

Challenges Gravel Grinder Race is the tire you need to make your mark in the gravel racing scene. It pairs Challenge's supple 120tpi tire casing with a smooth-rolling center tread and aggressive shoulder knobs for great riding characteristics, high speeds, and excellent cornering traction.

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.

Limus means mud in Latin, which is exactly what Challenge's Limus 33 Tubular tire dominates. Its deep, aggressive and well-spaced knobs cut through muddy ground and grip great. You'll be zooming through the corners and off-camber sections thanks to its grippy side knobs, and powering up inclines with ease thanks to the tall center knobs. It's built on Challenge's light and supple 300tpi hand-made SuperPoly casing with polyester-reinforced sidewalls, and there's an anti-puncture strip under the tread. You also get a latex tube. Latex tubes are lighter, thinner and more flexible than butyl tubes, increasing your comfort, lowering rolling resistance, and helping to prevent flats, too.

Whether it's fondos or races, Challenge's Strada Tubular tires are the choice of pros and enthusiasts alike. At 25mm wide, these tires smooth out rough pavement and chip seal. The core-spun cotton casing is light, supple, and offers an unparalleled ride. Pair that with a latex tube and you've got tires that carve the corners and feature incredibly low rolling resistance. The chevron tread provides excellent traction whether it's wet or dry. A puncture-protection belt under the tread protects your tires from road debris and helps you knock out the miles.

Challenge's Almanzo is a wide-profile, versatile, multi-surface tire that excels when the road is less than perfect. It's great on dirt and in situations where you just don't know what the next mile will throw at you. The center tread rolls fast, while the shoulder knobs corner great. It's hand made on Challenge's supple and light 260tpi SuperPoly casing with double puncture protection, tough polyester in the sidewalls, and a durable tread compound that sticks to the road in the corners.

- Super fast and ideally suited for dry or grassy conditions, this is the tire to get you the win - Tubeless compatible for lower pressures and increased traction - UCI-legal 33mm casing - Use: Cross Racing: Dry, Grassy, Dusty or Icy Conditions - Size: 700 - Tire Width: 33 mm - Internal Rim Width: 15-19 mm - TPI: 120 - Bead: Aramid - Casing: Nylon - PSI: 40-75 - Color: Black-Black

Challenge's Criterium is the choice of the pros. Countless victories and podiums have been been won thanks to its supple, core-spun cotton casing. It makes the tires race-day light, fast, and strong. This exceptional tire has a center tread that rolls quickly with a grippy side tread for excellent cornering. There's puncture protection under the tread, too. These tires us latex tubes which are lighter, thinner and more flexible than butyl tubes, increasing your comfort, lowering rolling resistance, and helping to prevent flats.

- Diamond File center tread rolls fast while deep side knobs grip the corners - Tubeless compatible - Superlight Nylon contruction - Use: All Around Gravel - TPI: 120 - Bead Aramid - Casing: Nylon

Challenge's Grifo 33 Open Tubular (Clincher) tire excels in snow, mud, grass, and firm dirt. It features a center section that offers excellent pedaling and braking traction, and its short knobs roll quickly. The Grifo 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 extra durability. The white-tread version is a softer rubber for better grip in cold temperatures.

- A great All-Around tire, GRIFO is Challenge's best-selling tread; a perennial World Championship winner - Tubeless compatible for lower pressures and increased traction - UCI-legal 33mm casing - Use: Cross Racing: All Around Soft Pack - Size: 700 - Tire Width: 33 mm - Internal Rim Width: 15-19 mm - TPI: 120 - Bead: Aramid - Casing: Nylon - BAR: 3.1-5.1 - PSI: 40-75 - Color: Black-Black

Challenge's Grifo 33 Seta Extra Tubular boasts a tread that excels in snow, mud, grass and firm dirt. It's also built on their light and supple 260tpi hand-made silk casing for an awesome ride quality. Plus, there's an anti-puncture strip under the tread and polyester in the sidewalls for extra durability. You also get a latex tube. Latex tubes are lighter, thinner and more flexible than butyl tubes, increasing your comfort, lowering rolling resistance, and helping to prevent flats, too.

- Challenge's newest 'cross tread for deep mud (and Portland) - Limusis Latin for mud - Tubeless compatible for lower pressures and increased traction - UCI-legal 33mm casing - Use: Cross Racing: Deep Mud - Size: 700 - Tire Width: 33 mm - Internal Rim Width: 15-19 mm - TPI: 120 - Bead: Aramid - Casing: Nylon - BAR: 3.1-5.1 - PSI: 40-75 - Color: Black-Black

Tough rides call for tough tires, so if you're hitting the cobbles you better have Challenge's Paris Roubaix Tubular glued on your wheels. It has a wide profile to take the sting out of rough pavement and dirt roads, and puncture protection under the tread. It's hand made on their light and supple 300tpi SuperPoly casing with polyester-reinforced sidewalls, and a durable tread compound that sticks to the road in the corners. These tires also use latex tubes which are lighter, thinner, and more flexible than butyl tubes, increasing your comfort, lowering rolling resistance, and helping to prevent flats, too.

Race it hard or just head off the beaten path. Challenge's Strada Bianca gravel tire urges you to take the road less traveled. Challenge is world-renowned for their tubular tires, and these are prime examples of their trade, with the smooth riding characteristics and flat resistance that pros and enthusiasts expect. At a gravel and chip seal-smoothing 30mm wide, these tires have the extra volume it takes to comfortably fly over less-than-perfect surfaces. With their supremely supple 260tpi casing, hand-laid, high-mileage rubber tread, Paris-Roubaix-proven chevron tread, and double puncture barrier, the Strada Bianca tires offer incredible levels of control, puncture resistance, and comfort.

Race it hard or just head off the beaten path. Challenge's Strada Bianca gravel tire urges you to take the road less traveled. Challenge is world-renowned for their tubular tires, and these are prime examples of their trade, with the smooth riding characteristics and flat resistance that pros and enthusiasts expect. At a gravel and chip seal-smoothing 30mm wide, these tires have the extra volume it takes to comfortably fly over less-than-perfect surfaces. With their supremely supple 260tpi casing, hand-laid, high-mileage rubber tread, Paris-Roubaix-proven chevron tread, and double puncture barrier, the Strada Bianca tires offer incredible levels of control, puncture resistance, and comfort.

Glue yourself to technical turns and gain speed on the course with Challenge's Baby Limus Open tubulars. - Use: Cross Racing, Sticky Mud - Size: 700C - Tire Width: 33 mm - Rim Width: 15-19 mm - Weight: 360 gr - TPI: 300 - Bead: Aramid - Casing: SuperPoly - Flat protection: PPS - BAR: 2-6 - PSI: 30-90

Blow through the muck in your next 'cross adventure with the unbeatable traction of Challenge's Baby Limus tires. - Use: Cross Racing: Sticky Mud - Size: 28 - Tire Width: 33 mm - Rim Width: 15-19 mm - Weight: 425 gr - TPI: 300 - Casing: SuperPoly - Flat protection: PPS - BAR: 1.6-6 - PSI: 23-90 - Inner tube: latex

- Proven Paris-Roubaix tread pattern with lower wearing tread - Handmade with a latex inner tube and hand glued natural rubber makes this tire super supple and fast - Double puncture protection offers the highest level of protection against punctures - Use: Rough Road, Cobbles, Big Riders, Hard Packed Dirt - Size: 28" - Tire Width: 36 mm - Internal Rim Width: 17-23 mm - Weight: 355 gr - TPI: 260 - Bead: Aramid - Casing: SuperPoly - Flat protection: Double PPS - BAR: 3-6 - PSI: 45-90

The Kenda K23 S-6 Schwinn tire is a great replacement tire for older 3-speed Schwinn bicycles. 26 x 1 3/8 x 1 1/4 (37-597 ISO) size. 600 grams. 65 max PSI. This tire is an obscure size found on some Schwinn bicycles from the 1960's and 70's. This tire is not compatible with 26 x 1 3/8 (590 ISO) rims, nor with modern 26 (559 ISO) mountain bike rims. To be sure of compatibility, look for the ISO measurement on the sidewall of your current tire. - Made from SRC compound - Gum wall sides - K23 tread pattern - Old Schwinn style size

Continental's Town & Country is a durable workhorse on and off the road, built for stability, traction, and value. Police bike squadrons throughout the world use the Town & Country because of its puncture resistance, high mileage and low rolling resistance. The slick center rolls smoothly on pavement and the recessed tread offers control in the corners.

Bontrager's R1 Road is a super tire for training rides, centuries and all-around riding. The round profile and lightly textured tread offer low rolling resistance and grip like glue in the corners while the lightweight, high-density casing provides a supple ride you'll love.

Bontrager's R1 Road is a super tire for training rides, centuries and all-around riding. The round profile and lightly textured tread offer low rolling resistance and grip like glue in the corners while the lightweight, high-density casing provides a supple ride you'll love.

Bontrager's R3 Road Tire is perfect for training, racing and everything else! The round profile and lightly textured tread offer low rolling resistance and grip like glue in the corners. The 120tpi casing and folding beads deliver a wonderfully supple ride and lighten the tire considerably. You also get sub-tread protection against flat tires and equally impressive, Bontrager's unique aero wing design that improves airflow so that the R3 actually saves you energy on every ride, too!

XR models now include 29" sizes. Same name, same technology and now more options than ever. Key features - A cross country race tire that excels in fast hardpack conditions - Super low multi-edged knobs for fast rolling predictable traction - Ultra-lightweight for fast acceleration

At a time when mountain bike tires were unquestionably gum walled, the VelociRaptors came out in black and haven't looked back ever since. They changed the game in 1994 with a steering specific front and a rear that could really dig. The VelociRaptors continue to be popular because to put it simply...they just work. Try riding one of the most classic combos of all time. Usage: XC / Trail Conditions: Dry to Wet / Hardpack to Mud - Comp Tube-Type: 829g, DNA compound

• Recreational tire with horizontal grooves for traction • Size: 26 x 1 3/8 • ISO 597

• Gray tread, sidewalls with raised center and lateral knobs • 26 x 1 3/8 (ISO 590)

Cruise in style with Schwalbe's Fat Frank. Their wide, round Balloonbike profile provides natural cushy suspension, and it rolls easily thanks to the smooth tread. It's also available in three colors to add panache to your cruiser. Weights: - 890 grams (29 x 2.0) - 975 grams (26 x 2.35)

Introducing the redesigned Maxxis High Roller II, offering better braking and more consistent feel. The open and aggressive tread design gives the High Roller II excellent soil penetration and mud clearing ability. A square profile provides a solid, consistent feel across the knobs, and modified knobs on the shoulder and center improve braking performance and traction on hard surfaces. When gravity pulls you downhill, rely on the High Roller II to keep you upright. - Tubeless Ready - Folding bead