650B

Surly's Knard is a 27.5-inch x 41mm tire with the perfect tread for maximum traction and low rolling resistance. Designed for wherever your path leads, the Knard is the tire you want beneath you as you plot your next adventure.

Kenda K1247 Amrak Tire - Clincher - Wire bead - 30tpi

Ritchey's signature mountain bike tread pattern for well over a decade, the Z-Max Evolution is the culmination of years of development and VFA design. Tread lugs are spaced wider and shortened for faster handling, reduced rolling resistance and lighter weight.

Tight enough tread spacing for high speed, drag-free onslaughts, yet blocky and tall enough to really dig in when it comes time to slam on the brakes. A rounded profile and staggered, supportive side knobs keep clamoring for traction even as the trail loses its camber. Most often used as a rear tire, the Trail Boss also keeps the front in check on hardpack trails. Want to go out and own it? Be the Trail Boss. Usage: XC / Trail / All Mountain Conditions: Dry to Damp / Hardpack to Loam - 27.5 x 2.25 TCS Tough/Fast Rolling: 1040g, Dual DNA compound - 27.5 x 2.25 TCS Light/Fast Rolling: 778g, Dual DNA compound - 27.5 x 2.25 Comp Tube-Type: 913g, DNA compound - 27.5 x 2.40 TCS Tough/Fast Rolling: 1050g, Dual DNA compound - 27.5 x 2.40 TCS Light/Fast Rolling: 844g, Dual DNA compound - 27.5 x 3.0 TCS Light/Fast Rolling: 1125g, Dual DNA compound

Kenda Kadre tires feature large gripping knobs that give riders the ultimate control. - Debris clearing pattern helps to clear dirt and mud from tread

The Tubeless Ready SE5 Team Issue tire offers strength, durability, and fast-rolling efficiency in a super-strong enduro package. SE5 delivers the durability of an enduro tire and the traction of a downhill tire for superior performance in aggressive conditions, where lightness on the climbs is just as important as grip on the descents. Key features - A robust enduro tire that excels in loose, rocky, and wet conditions - Aggressive tread for confident cornering and braking traction on wet, slick, demanding trails - Tubeless Ready (TLR) for easy tubeless setup and puncture protection - Core Strength has sidewall and sub-tread protection for lightweight durability

Legendary tire designer Frank Stacy provides another race-proven mountain bike tire design in the XR2. The value-minded and super-versatile XR2 Comp offers outstanding quickness and cornering stability on hard-packed or loamy cross country courses. - A versatile trail tire that excels in loose-over-hardpack and firm conditions - Fast rolling with consistent, predictable traction for a variety of trail conditions

Legendary tire designer Frank Stacy provides another race-proven design with the XR2 Team Issue mountain bike tire. It's Tubeless Ready for fewer flats, and features a specifically-formulated compound for lightweight construction, improved cornering traction, and low rolling resistance. Key features - A versatile trail tire that excels in loose-over-hardpack and firm conditions - Fast rolling with consistent, predictable traction for a variety of trail 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

If you have to pick one A versatile XC tire with excellent traction provides confidence for most trail conditions. Versatility is the name of the game for the XR3 Comp mountain bike tire. It's the quickest, highest-value rubber for the widest variety of trail conditions—from hard-packed singletrack to loam and everything in-between. - A versatile trail or race tire that excels in a wide variety of conditions - Aggressive side knobs provide consistent cornering and traction across multi-trail surfaces

The Trail King ShieldWall tire hits the mark with its superb grip and unexpected low rolling resistance for long distance riding over a variety of terrain. Making use of the innovative BlackChili compound, the Trail King is a master of the demands and challenges of all-mountain riding. Thanks to its comfortable and voluminous casing, this tire shines on enduro and all-mountain bikes with greater than 140mm of suspension. It’s Tubeless Easy and designed to seat and inflate the first time using a standard floor pump.

- Perfect for urban duty mountain bikes or 650b touring bikes - Fast enough for paved roads and strong enough for gravel - Folding Aramid bead

Vittoria Randonneur Tech tires feature classic city tread with subtle siping for wet weather use. - Functionalized Graphene 2.0 compound minimizes battery usage on e-bikes - Additional puncture-protection layer and reflective sidewall stripe for safety

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

When you’re out on a ride the last thing you want is to be limited by your tires in any way. Our ExtraTerrestrial Tires were designed to let you ride without limits by simply following the only tenets we have for tire design: they’re high volume and they kick ass. The ExtraTerrestrial tire was meant to serve as a heavy-duty off-road touring tire that shines on hardpack surfaces. It uses a nylon breaker in the sidewalls for cut protection, a molded pattern for anti-cut propagation, and a Kevlar cap under the tread to protect against flats. The ET Tire uses a distinctly directional tread pattern and its width yields more traction than you might expect from a tire with such little rolling resistance. The tread is low profile with a file tread in between tread blocks. The ExtraTerrestrial tire has enough width and traction for the soft stuff and won’t bog you down on smooth or hard surfaces. - Folding bead - Casing: 60 TPI - Recommended rim width: 23 – 30mm

The Knard is a tire that just makes sense. With its tightly-spaced, low-block tread pattern, it provides the perfect ratio of traction and low rolling resistance. It grips well on all sorts of different surfaces and will haul some sausage on hardpack terrain or groomed trails. If you want a tire that has a little less bite and a bit more speed but don’t want to sacrifice traction, look no further. With sizes ranging from a svelte 41mm all the way up to a hefty 4.8”, there’s a Knard to solve all your fast-rolling needs. - Folding bead - Casing: 60 TPI - Max pressure: 75psi - Weight: 510g

For all-weather trekking and commuting. Created to meet the demands of the European trekking market, the Overdrive has a grooved slick design for all-weather application, as well as K2 Kevlar Composite Puncture Protection to provide strong protection from encounters with road debris. - Grooved slick design - K2 Kevlar Composite Puncture Protection - Reflective stripe - City/touring tire

Gravel road riding is all the rage at the moment. It's great for cyclists who want to leave sealed roads behind and enjoy the freedom of cycling on unpaved roads. Designed to suit diverse touring styles, the GravelKing uses a mixture of properties that also accommodate on-road cycling. Featuring ZSG Natural compound, anti-flat Casing, and Advanced Extra Alpha Cord. - Black multi-use gravel tread - Aramid (Kevlar) folding bead

The most versatile tire in the Donnelly line-up, MXP is at home on a wide range of courses and conditions. Some call it a traditional chevron-style tread pattern but most call it the go-to when you are not sure what the cyclocross course has in store for you. - Traditional arrow/chevron center tread with progressive shoulder lugs for secure cornering in loose conditions - Tire Intended Use: Cyclocross - Labeled Size: 650B x 33 - Tire Bead: Folding - Tire Diameter: 650B - Tire Type: Clincher - Weight (oz): 15.1 - TPI: 120

High-volume Tubeless Ready adventure tire. Maxxis' took their most popular training tire, the Re-Fuse, and modernized it with tubeless technology and higher volumes for even more reliability and comfort. The familiar diamond tread pattern keeps things rolling smoothly even as the pavement crumbles into gravel and hardpack dirt. - Folding bead - Diamond-knurled slick design - Tubeless Ready - MaxxShield bead-to-bead protection - Dual-compound rubber

Schwalbe One Tires. Schwalbe's fastest and most reliable competition tire. Featuring a the new OneStar Triple Compound.

A high-performance all-road tire that performs well through a wide range of inflation levels. The mix of small, closely spaced center knobs and longer, taller cornering tread blocks is appreciated in soft or loose surfaces. - ZSG (Zero Slip Grip) natural rubber compound provides consistent performance through a wide range of temperatures and wears well - Bead-to-bead puncture-protection belt - 126 TPI Advanced Extra Alpha casing performs well through a wide PSI range, minimizes rolling resistance - Actual width of installed tire can vary by 6mm or more depending on inner rim width and inflation pressure.

Resolute 42 is the ultimate all-weather gravel tire for those who believe there is a perfect tread pattern for every ride. Small, square knobs deliver consistent bite into a variety of terrain, while the ample spaces between them prevent packing up when conditions become fun (a.k.a wet). Truly all-season in nature, its 42mm width makes it a set-it-and-forget-it gravel tire for endlessly undulating roads through all varieties of weather. Usage: Gravel / Monstercross Conditions: Dry to Wet / Hardpack to Loose Gravel - 650B: 440g - 700c: 460g

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

The XR1 Team Issue TLR is an ultra-fast rolling, tubeless ready cross country race tire ideally suited for dry, dusty conditions. The Team Issue TLR mountain bike tire has a foldable bead with tightly spaced central knobs and an open outer tread for fast-rolling traction plus powerful grip on dusty surfaces. Key features - An XC race tire that excels in firm and fast 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

A versatile and fast race-ready tire that excels in loose-over-hard pack terrain. Join the team - ride their tire. Legendary tire designer Frank Stacy provides another race-proven design with the XR2 Team Issue mountain bike tire. It's Tubeless Ready for fewer flats, and features a specifically-formulated compound for lightweight construction, improved cornering traction, and low rolling resistance. - A versatile trail tire that excels in loose-over-hardpack and firm conditions - Fast rolling with consistent, predictable traction for a variety of trail 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

The XR3 Team Issue Tubeless Ready mountain bike tire is the right choice for high performance over the widest range of trail conditions. Advanced rubber compound and Inner Strength protection make XR3 Team Issue tires Trek Factory Racing's pick for best all-around high-performance for cross country. Key features - Versatile tread provides consistent traction and cornering - Excels in a wide variety of conditions - Tubeless Ready (TLR) tire is engineered for easy tubeless setup and puncture protection - Inner Strength casing is lightweight sidewall protection that's supple and strong

The big news from Donnelly is the upcoming EMP gravel tire, which pulls its name from the airport code for Emporia, Kansas, home of a kinda popular gravel race that crushes souls every year. The tire is a departure from their usual tread design, getting a tighter tread block pattern without a well-defined center strip like most all of their other tires. It’s still designed to roll fast, which is key if you’re racing any long distance gravel bike event, but with bigger side knobs to handle more aggressive cornering. - Smooth-rolling center knobs and aggressive shoulder lugs - Soft rubber compound for extra grip and shock absorption - Integrated puncture protection belt under the tread - Tire Intended Use: Gravel - Labeled Size: 650B x 47 - Tire Bead: Folding - Tire Diameter: 650B - Tire Type: Tubeless Ready Clincher - Weight (oz): 19.6

Teravail's 47mm Rampart offers increased traction and an ultra-smooth ride quality on rough pavement (and well beyond). The smaller 650b diameter means it fits into many existing 700c frames to give your current bike an entirely different feel and increased versatility.

Whether your route covers rough roads or fast gravel, or even both in the same day, Washburn is built for the job. Its center slick provides awesome rolling efficiency on pavement and packed dirt, while the shoulder lugs take over in the turns, digging in for confidence in loose corners. - Centerslick tread pattern minimizes rolling resistance - Tall shoulder lugs add traction through corners and over soft surfaces - Tubeless ready for flat prevention, lower-pressure traction and comfort - Light and supple casing provides a plush ride and decreases rotational weight - Ideal internal rim width is 23 mm

Sendero is for those who believe sending it shouldn’t be limited to mountain bikes. As the first Road Plus tire designed solely with dirt in mind, the Sendero combines drop bar efficiency with the capabilities of an aggressive tread pattern. Ramped center knobs minimize rolling resistance while substantially spaced outer knobs ensure footing in loose terrain. Sendero was designed to be an aggressive tire without compromise. Looking to ride mountain bike tires on your drop bar bike? The Sendero is for you. - 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.