Challenge's Grifo Race 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. Built on a smooth, supple 120tpi casing, the Grifo Race boasts an anti-puncture strip under the tread and polyester in the sidewalls for extra durability.

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, a durable tread compound that sticks to the road in the corners, and tough polyester in the sidewalls. Tubular tires are favored for their low operating pressures and resistance to pinch flats, a solid benefit in the world of 'cross or gravel racing.

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.

Aaron’s signature tires feature an updated block tread and bigger sizing. The uniform block tread is reminiscent of his original tire, but freshened up. Coming in at 20x2.30" and 20x2.40"

A classic knobby version of the Aitken signature tire. Traditionally a more dirt-specific tire but the tire’s fast rolling center tread allows it to be used on all terrains. - 20 × 2.35 only Single ply casing

Mike Aitken's popular signature tires for street and dirt. Ideal for use at high speeds. - 20 × 2.25, and 20 x 2.45 Dual ply casing

Chase Gouin’s signature tire. Predictable during tight turns and made to roll smooth at high speeds. Horizontal tread grooves provide shoe traction only when you need them to. This modern interpretation of one of the most popular tires ever made is used regularly by street riders too. Now available with a Special Compound tread durometer for polished indoor floors. 100 PSI, of course.

Tom likes to ride fast and go very high. These tires were designed to help him do just that. With a fast center tread, these tires are made for park, street and even dirt too. The side profile is reminiscent of a motorcycle tire as well, which is a nod to Tom’s motorcycle lovin’ ways.

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.

- When the conditions get muddy there is only one tire to get you to the finish line, the Baby Limus - Puncture protections keeps you riding and not changing flats - Use: Cross Racing: All around, Sticky Mud - Size: 700 - Tire Width: 33 mm - Internal Rim Width: 15-19 mm - Weight: 350 gr - TPI: 120 - Bead: Aramid - Casing: Nylon - BAR: 3.1-5.1 - PSI: 40-75

Your search for an intermediate, all-conditions 'cross tire is over! Challenge's Chicane can tackle it all, whether the course is dry and fast, or thick with mud. The grippy side knobs ensure you stay upright in every technical turn, and the center file tread rolls fast and smooth. 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. Open tubular tires feature many benefits of traditional tubular tires, but with the low maintenance and ease of installation of clincher tires.

- 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.

- File tread pattern center with large side knobs for optimized rolling speeds and cornering confidence - Double Puncture Protection system helps to prevent flats - Use: All Around Gravel - Size: 700 - Tire Width: 42 mm - Internal Rim Width: 17-23 mm - Weight: 375 gr - TPI: 120 - Bead: Aramid - Casing: Nylon - Flat protection: PPS - BAR: 2.5-4 - PSI: 35-60 - Color: Black-Black

- 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.

- Proven Paris-Roubaix tread pattern with lower wearing tread - Tubeless compatible - Double puncture protection offers the highest level of protection against punctures - Use: Rough Road, Cobbles, Big Riders, Hard Packed Dirt - TPI: 120 - Bead: Aramid - Casing: Nylon - Color: Black-Black

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.

Even on bad roads, Challenge's Strada Open Clincher rides great because it has a rounder profile to take the sting out of rough pavement and dirt roads. It's hand made on their lightweight, supple 260tpi SuperPoly casing with tough polyester in the sidewalls, and a long-wearing and grippy tread compound for excellent performance. There's also a layer beneath the tread to help prevent flats.

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