700c, 27-Inch & 650c

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 tubular combines a supple, 300TPI SuperPoly casing with natural rubber tread, and a seamless latex inner tube for improved comfort, confident cornering, and quick handing. The latex tube is lighter, thinner and more flexible than a butyl tube, increasing your comfort, lowering your rolling resistance, and helping to prevent flats. The tube also includes a removable core Presta valve. This tire includes PPS Ganzo, a lightweight and supple Puncture Protection System placed between the tread and casing to increase resistance to punctures.

A do-anything combination of low rolling resistance, Hard-Case Lite puncture protection, and a grippy, all-weather compound with siped tread for enthusiasts who want one lightweight tire for year-round riding. - Excels on the road in a variety of conditions - Hard-Case Lite sub-tread material protects against punctures

A do-anything combination of low rolling resistance, Hard-Case tread and sidewall protection, and a grippy, all-weather compound with siped tread for enthusiasts who want one tire for year-round riding. - Excels on the road in a variety of conditions - Hard-Case triple flat protection protects against punctures

An e-bike tire designed for smooth-rolling confidence and approved for the unique demands of eBikes at speeds up to 50km/hr. E-bike approved The E-6 is an e-bike specific tire designed to offer confident traction and lasting performance for the speeds and needs of eBike riders. The E-6 is approved for electric bike use up to 50km/hr. Reflective sidewalls increase visibility and the Hard-Case Lite puncture protection is optimized for the increased speeds and demands of eBike riders. Product details - Designed for city and pavement with a smooth-rolling tread that offers confident traction - E-bike approved for speeds up to 50km/hr - Designed to meet the unique demands of electric bike usage - Hard-Case Lite optimized for e-bikes with 1mm Kevlar puncture protection belt that offers great ride feel, and extra durability - Reflective sidewall strips for added visibility

For the roads less traveled The GR1 Team Issue gravel tire is designed for fast rolling performance and consistent traction on the roads less paved. It has proven success at the most demanding gravel races and features Inner Strength Casing for lightweight puncture protection while maintaining a smooth, supple, fast feel. Plus, you can go tubeless for better performance and even more puncture protection. - A gravel tire that excels in fast and firm conditions - Fast-rolling and predictable cornering with consistent traction - Tubeless Ready (TLR) for easy tubeless setup and puncture protection - Supple and strong Inner Strength casing provides lightweight sidewall protection - Lightweight 120 TPI casing provides great ride feel and tire performance

For the roads less traveled The GR2 Team Issue gravel tire is designed for fast-rolling performance and biting traction on even the most rugged gravel roads. It has proven success at the most demanding gravel races and features Inner Strength Casting that provides lightweight puncture protection without sacrificing smooth, supple feel. Plus, you can go tubeless for better performance and even more puncture protection. - A gravel tire that provides excellent traction for confidence across the roughest roads - Fast rolling with consistent, predictable traction for a variety of road conditions - Tubeless Ready (TLR) for easy tubeless setup and puncture protection - Supple and strong Inner Strength casing provides lightweight sidewall protection - Lightweight 120 TPI casing provides great ride feel and tire performance

This versatile hybrid and city tire is great for a variety of conditions and offers basic puncture protection and durability. A tire ready for your everyday H2 is the go-to replacement tire for city and hybrid bikes. Its versatile design is at home on streets, paths, and light trails. The tread rolls smooth and provides good cornering traction for a confident, efficient ride, and the durable construction delivers long-lasting tread life. Product details: - Excellent tire for streets, paths, and light trails - The updated tread design delivers confident traction that rolls smooth - Tough 30 TPI construction for durability and longer tread life - Budget-friendly replacement tires that deliver performance and value - Size specific tread adds traction to wider sizes with faster rolling design for narrower sizes - Size-specific tread patterns with more traction on wider sizes and a faster-rolling design on narrower sizes - H2 tires in select larger widths are made from recycled tires Features: A hybrid tire you’ll love H2 is our best hybrid tire and the perfect upgrade for your city bike. Better protection against flats means more riding, less punctures, and a longer lasting tire. reCYCLE compound Bontrager's proprietary reCYCLE compound gives new life to old rubber! H2 tires in select sizes (700x40 and larger) contain 11% recycled material. Tread for how you ride H2 tires have a size-specific tread design. Larger tire sizes have additional tread for added traction and confidence, while narrower tire sizes have a smoother tread for a faster and more efficient ride.

This versatile hybrid and city tire is great for a variety of conditions and offers basic puncture protection and durability. A tire ready for everyday H2 is the go-to replacement tire for city and hybrid bikes. Its versatile design is at home on streets, paths, and light trails. The tread rolls smooth and provides good cornering traction for a confident, efficient ride, and the durable construction delivers long-lasting tread life. Product details - Excellent tire for streets, paths, and light trails - The updated tread design delivers confident traction that rolls smooth - Tough 30 TPI construction for durability and longer tread life - Budget-friendly replacement tires that deliver performance and value Specifications - TPI: 30 TPI - Durometer: 60a - Bead: Wire - Type: Clincher - Minimum pressure: 60psi - Max pressure: 95psi - ETRTO: 32-622 - Studdable: No

A versatile hybrid and city tire that performs well in a variety of conditions and offers maximum puncture protection plus lasting durability and reflectivity. Our best puncture protection: H2 is our best hybrid tire, and with Hard-Case Ultimate you also get the very best in puncture protection. The versatile design is at home on streets, paths, and light trails and features an updated tread that rolls smooth and provides good cornering traction for a confident, efficient ride. Lasting durability, a long-wearing tread, and reflective sidewalls help make this tire a proven winner. Product details - Excellent tire for streets, paths, and light trails - The updated tread design delivers confident traction that rolls smooth - Hard-Case Ultimate puncture protection for the ultimate in tire durability - Sub-tread breaker belt helps prevent punctures - Anti-cut, bead-to-bead casing resists cuts from glass and sharp objects - Additional sub-tread co-extrusion provides maximum puncture protection - Reflective sidewall strips for added visibility - Size-specific tread patterns with more traction on wider sizes and a faster-rolling design on narrower sizes Features: A hybrid tire you’ll love H2 is our best hybrid tire and the perfect upgrade for your city bike. Better protection against flats means more riding, less punctures, and a longer lasting tire. Hard-Case Ultimate puncture protection Our best puncture protection delivers a triple layer of protection against flats with a sub-tread aramid breaker belt, a full bead-to-bead anti-cut casing, and a sub-tread co-extrusion. Reflective sidewalls Reflective sidewalls add visibility in low light conditions. They’re perfect for helping riders stand out on city streets and paths after dark. reCYCLE compound Bontrager's proprietary reCYCLE compound gives new life to old rubber! H2 tires in select sizes (700x40 and larger) contain 11% recycled material. Tread for how you ride H2 tires have a size-specific tread design. Larger tire sizes have additional tread for added traction and confidence, while narrower tire sizes have a smoother tread for a faster and more efficient ride.

The H5 Hard-Case Lite confidently rolls over any terrain with lightweight flat protection and a confidence-inspiring tread that provides great traction on a variety of surfaces. Added visibility from the reflective sidewalls make this tire even more versatile. - Excels on pavement and packed bike paths - Hard-Case Lite protects against punctures with superior, lightweight, sub-tread material - Reflective sidewall strips for added visibility - 30 TPI - Wire bead - Clincher

AW3 is the set-it-and-forget-it tire for road riders and commuters. It rolls fast and keeps the flats away with improved Hard-Case Lite puncture protection. Plus, it's made with a proprietary TR-Endure rubber compound and a lightly treaded design for confidence and traction. - Leading puncture protection with traction for confidence in all conditions - Improved Hard-Case Lite puncture protection provides best-in-class defense against flats - Proprietary TR-Endure compound delivers long lasting-traction in all conditions - Smooth-rolling, lightly treaded design with siping channels for traction and all-weather confidence

AW3 is the set-it-and-forget-it tire for road riders and commuters. It rolls fast and keeps the flats away with durable Hard-Case puncture protection. Plus, it's made with a proprietary TR-Endure rubber compound and a lightly treaded design for confidence and traction in all conditions. - Leading puncture protection with traction for confidence in all conditions - Improved Hard-Case puncture protection provides best-in-class defense against flats - Proprietary TR-Endure compound delivers long lasting-traction in all conditions - Smooth-rolling, lightly treaded design with siping channels for traction and all-weather confidence - 60 TPI - Folding bead - Clincher

Your bike is your freedom. Trails, bike paths, and roads await. The LT3 Hard-Case Ultimate is an all-condition, light trail specialty tire that's designed for fast rolling on both pavement and trails without having to worry about rocks or debris causing flats. - Excels on light to moderate trails - Open tread design for trail use

A road tire with Hard-Case Lite puncture protection for long-lasting confidence and traction on every road. Get that new-tire feeling The R1 road tire is the perfect replacement tire for your road bike or urban commuter. It's a great balance of performance and value, with 60TPI casing and Hard-Case Lite puncture protection that keeps weight down and durability up. Product details - Designed for lasting durability and performance for road riding - Hard-Case Lite provides lightweight puncture protection - Low rolling resistance and excellent cornering grip Specifications - Size: 700C x 32mm - Diameter: 700C - Width: 32mm - TPI: 60 TPI - Durometer: 62a - Bead: Wire - Type: Clincher - Max pressure: 50psi - ETRTO: 32-622 - Puncture protection: Hard-Case Lite - Weight: 428g

Equip your urban commuter or road bike with a reliable set of tires. The R1 road tire is a great place for any cyclist to start. The 60TPI casing and Hard-Case Lite puncture protection keeps the weight down and durability up, while providing excellent traction. - Advanced tread gives super-low rolling resistance with excellent cornering grip - Unique Aero Wing bead eliminates gap between rim and tire for aero advantage

A fast-rolling road tire for everyday riding An everyday road tire with added traction and a longer-lasting tread. The R2 Hard-Case Lite brings proven puncture protection and durability to a lightly-treaded design that maximizes confidence across all road conditions. The R2 is a fast rolling, everyday road tire that delivers lasting performance. Product details - Designed for lasting durability and performance for everyday road riding - Hard-Case Lite provides lightweight puncture protection - Fast-rolling, lightly-treaded design adds traction and confidence - Low rolling resistance and excellent cornering grip - Tread styling gets more aggressive as size increases to better suit intended use

Lighter, faster, and longer lasting The all-new R3 Hard-Case Lite road tire rolls faster, with added traction, and a longer-lasting tread. The proprietary TR-Speed compound and updated Hard-Case Lite puncture protection increase both speed and durability while the lightly treaded design adds traction. With R3 you get a faster road racing tire that delivers added confidence through every corner. Product details - Designed for speed, traction, and durability while racing and road riding - Proprietary TR-Speed compound provides confident, fast-rolling performance - Hard-Case Lite with improved Nylon105 beaker belt provides lightweight puncture protection, great ride feel, and extra durability - Fast-rolling, lightly-treaded design adds traction and confidence - Low rolling resistance and excellent cornering grip - Tread styling gets more aggressive as size increases to better suit intended use

Let the good times roll The all-new R3 Hard-Case Lite TLR gets you rolling faster with added traction, and a longer-lasting tread. The updated Hard-Case Lite puncture protection and Tubeless Ready design combine with a lightly-treaded design to offer a faster rolling road racing tire that maximizes confidence through every corner. Product details - Designed for speed, traction, and durability while racing and road riding - Proprietary TR-Speed compound provides confident, fast-rolling performance - Hard-Case Lite with improved Nylon105 beaker belt provides lightweight puncture protection, great ride feel, and extra durability - Tubeless Ready (TLR) design allows for easy tubeless setup and added puncture protection - Fast-rolling, lightly-treaded design adds traction and confidence - Low rolling resistance and excellent cornering grip - Use with Bontrager TLR wheels, sealant, and rim strips for a complete tubeless system designed and tested to work together

Tubeless made easy The all-new R3 Hard-Case Lite TLR road tire is fast-rolling, easy to install, and hard to flat. It's equipped with updated Hard-Case Lite puncture protection and a lightly-treaded design for traction and confidence through every corner. Plus, it's a breeze to install, so you get all the benefits of road tubeless without any of the hassle. A lightly-treaded TLR road tire with proprietary TR-Speed compound and improved Hard-Case Lite puncture protection that's easy to set up and packed with performance. - Designed for speed, traction, and durability while racing and road riding - Proprietary TR-Speed compound provides confident, fast-rolling performance - Hard-Case Lite with improved Nylon105 beaker belt provides lightweight puncture protection, great ride feel, and extra durability - Tubeless Ready (TLR) design allows for easy tubeless set-up and added puncture protection - Fast-rolling, lightly-treaded design adds traction and confidence - Low rolling resistance and excellent cornering grip - Use with Bontrager TLR wheels, sealant, and rim strips for a complete tubeless system designed and tested to work together

The R4 clincher's race performance gives unparalleled road feel yet is extremely durable for a racing clincher, thanks to Hard-Case Lite protection. The Hard-Case Lite sub tread material protects against punctures in the peloton and up the hardest and sketchiest road climbs. - Lightweight, 320TPI, hand-built clincher - Excellent for road and criterium racing - Super supple polyamide synthetic fiber reinforcement for added casing strength - Hard-Case Lite protects against punctures with superior, lightweight, sub-tread material - Clincher tire made using the same handmade process as tubulars to maintain suppleness and ride quality

A hand-built road tire with a supple, lightly treaded design that offers uncompromising speed, traction, and confidence. Confidence at speed The cobbles of Paris-Roubaix were the inspiration for the R4 Classics tire. Confident traction and a fast-rolling yet grippy tread give this hand-made road tire uncompromising performance and road feel, and Hard-Case Lite with polyamide synthetic fiber reinforcement adds puncture protection and durability. - Fast rolling road race tire for when traction and confidence matter most - High grip tread and compound performs in wet and dry conditions - Super supple polyamide synthetic fiber reinforcement provides added casing strength - Hard-Case Lite protects against punctures with lightweight, sub-tread material - Super supple 320TPI casing rolls fast with great ride feel - Clincher tire made using the same handmade process as tubulars to maintain suppleness and ride quality

Feel fast, safe, and stable in any weather and on any road on the T1 road touring tire. With super tough nylon casing and durable compound for added wear and traction, this tire is ideal for touring, training, or recreational riding. Key features - Engineered tread design for confidence in wet or dry conditions - Durable compound gives long tread life - Extra-strong nylon casing - 30 TPI - Wire bead - Clincher

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

Byway is for days of endless hardpack exploration and gravel grinding while also providing noticeable efficiency on any pavement linking it all together. A swiftly smooth centerline is paired to a textured intermediate section that provides a seamless transition onto small outer knobs for unwavering traction in loose dirt and gravel. Prominent outer knobs also extend down the sidewall to provide an additional level of defense from roadside unpleasantries of all shapes and sizes. Byway 34 is an identical replacement to the previously named Exposure 34 tire. We renamed the tire to create a uniform naming structure where all tires are named according to the tread pattern. SG2 PUNCTURE PROTECTION: Most sizes of this tire are available with our all-new SG2 Puncture Protection, which is a lightweight nylon insert that provides bead-to-bead coverage and ensures every area of the tire is defended against slashes and punctures. As events become progressively rougher and cyclists pedal farther, gravel gets tougher. It only makes sense for gravel tires to become tougher as well. Please refer to the charts below to determine which versions are available with SG2. - Nylon fibers have a flat profile, which reduces the amount of rubber needed to fill the gaps between fibers and minimizes weight. - Protected SG2 gravel tires feature a 120tpi casing, which improves suppleness compared to a traditional 60tpi tire. - SG2 was specifically designed to be a puncture protection layer, but it also improves air retention and eliminates seeping at the sidewall. FEATURES: - Smooth centerline for efficiency with diamond-shaped outer knobs for grip in the dirt. - High volume tire enables a comfortable ride. - Dual Compound rubber means a fast-rolling tire with great corning traction.

Our most dirt-focused Road Plus tire yet, the Byway Road Plus TCS tire delivers supple plus-size traction and smooth riding characteristics farther into the dirt. The Byway Road Plus tire allows riders to find comfort on remote gravel roads without feeling slow on the pavement required to reach them. - Smooth centerline for efficiency with diamond-shaped outer knobs for grip in the dirt - High volume tire enables comfortable ride - Dual Compound rubber means a fast-rolling tire with great corning traction - Designed to meet ETRTO standards, TCS (Tubeless Compatible System) tires feature the best of both worlds: they boast the ride benefits & reliability of a tubeless tire with the minimal weight of a tube-type tire

Volume, speed, and consistency. The Cross Boss’ even center tread shelf provides smooth and fast acceleration while more open side knobs help clear muck. A rounded, high-volume profile designed ground-up for tubeless usage provides plenty of room to modulate tire pressure while dual compound, Dual DNA rubber and defined cornering channels keep riders grinning for more turns. From singletrack to the circuit, the Cross Boss is here to bring it. Usage: Cyclocross Conditions: Dry to Damp / Hardpack to Loam - Weight: 400g - Compound: Dual DNA

The Expanse TCS folding tire is an ideal choice for fast riding on smooth gravel and mixed-surfaces. It's tubeless-ready, so you can ride lower pressure and not have to worry about pinch flats. - Designed to meet ETRTO standards, TCS (Tubeless Compatible System) tires feature the best of both worlds: they boast the ride benefits & reliability of a tubeless tire with the minimal weight of a tube-type tire.

Elite-level road meets renowned tubeless simplicity in sizes that accommodate exploration while digging deep on lonesome roads. Exposure TCS tires mean big days and few boundaries. - Supple tubeless casing allows for lower pressure and improved traction - High volume road casing enables comfortable ride - Dual Compound Rubber means a fast-rolling tire with great corning traction - Smooth centerline with a diamond file outside edge for increased off-road performance - Designed to meet ETRTO standards, TCS (Tubeless Compatible System) tires feature the best of both worlds: they boast the ride benefits & reliability of a tubeless tire with the minimal weight of a tube-type tire.

FAAAASSSTT! The Nano 40c is built for speed, and let’s just politely say it delivers. A 40mm, rounded profile and an elevated centerline provide enough volume for lower tire pressures and a smoother ride while still reducing drag and rolling resistance. This makes for an all out gravel destroyer that can still appease those clamoring for a truly big cyclocross tire. Winner? We think so. So does everybody else. Don't believe us? Just ask. Everybody's irrefutable favorite, 'nough said. Usage: Gravel / Cyclocross Conditions: Dry to Damp / Hardpack to Sand - TCS Light/Fast Rolling: 530g, Dual DNA compound - Race Tube-Type: 470g, DNA compound - Comp Tube-Type: 550g, DNA compound

Nano 40 is built for speed. A nearly uninterrupted centerline provides swift efficiency on hardpack terrain while staggered outer knobs allow you to stay on the gas while hammering up chunky climbs or hanging on through loose gravel corners. The high-volume 40mm casing allows for lower tire pressures and a smoother ride while still reducing drag and rolling resistance. This makes for an all-out gravel destroyer that still appeases those clamoring for a truly big cyclocross tire. Everybody's irrefutable favorite, 'nough said. SG2 PUNCTURE PROTECTION: This tire is available with our all-new SG2 Puncture Protection, which is a lightweight nylon insert that provides bead-to-bead coverage and ensures every area of the tire is defended against slashes and punctures. As events become progressively rougher and cyclists pedal farther, gravel gets tougher. It only makes sense for gravel tires to become tougher as well. - Nylon fibers have a flat profile, which reduces the amount of rubber needed to fill the gaps between fibers and minimizes weight. - Protected SG2 gravel tires feature a 120tpi casing, which improves suppleness compared to a traditional 60tpi tire. - SG2 was specifically designed to be a puncture protection layer, but it also improves air retention and eliminates seeping at the sidewall. FEATURES: - Minimal rolling resistance due to raised, consistent centerline tread. - Long, staggered knobs provide steadfast traction without cutting down on speed. - TCS Light/Fast Rolling versions of the Nano 40 tire provide ultimate tubeless reliability for gravel or cyclocross racing. - Race and Comp level tires are designed to provide optimal performance at a competitive weight but must be used with inner tubes. Race and Comp level tires are not tubeless compatible.