700c, 27-Inch & 650c

GravelKing SK Plus has a semi-knobby tread pattern with a super-tough puncture belt for aggressive gravel roads. GravelKing SK Plus has side reinforcement with Protite and a bead-to-bead nylon puncture belt, resulting in a 4-ply, super-tough casing.

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 tire takes tubeless to a higher performance level by combining TLR's properties with a handmade construction for the ultimate in traction and ride quality. This tire includes PPS Ganzo, a lightweight and supple Puncture Protection System placed between the tread and casing to increase resistance to punctures. And puncture protection is enhanced when combined with the appropriate tubeless sealant. 260TPI SuperPoly casing.

- Never before has an entry-level model from Schwalbe been so good! - This update was really worth it. - The K-Guard puncture protection, a smooth 50-EPI carcass and the improved Silica compound give the Lugano II impressive race performance at an excellent price.

For your way off-road. For more comfort. For the adventure. Be it the long tour, or the shortcut on your way home. The new gravel Terra series by Continental gets you there. Made to get you over rough and smooth. Choose alter road, choose Terra. Tubeless Ready Developed especially for the mountain bike sector, this additional puncture protection layer which completely encircles both tire beads makes our carcasses robust and impervious against damage and penetration from foreign objects. For maximum effect we combine ProTection with BlackChili Compound. The result: versatile, low weight and an attractive design. In addition, tires made using this technology can also be used as Tubeless Ready. ProTection The ProTection technology gives our tires their perfect mix of fast rolling, grip and puncture protection. Four plies under the tread and three in the sidewalls make this possible. The whole tire attains greater resilience and becomes less vulnerable to damage.

- Classic training tire with 60tpi casing, a puncture protection belt and higher overall thickness than the Road

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 - 126tpi 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. - Tubeless compatible Specs: - PSI: 60 - ISO Diameter: 622 / Road / 29" - Tire Intended Use: Gravel - Tire Type: Tubeless Ready Clincher - TPI: 126 - Tire Bead: Folding - Tire Diameter: 700c

- The SS and SS+ feature an all-new tread pattern consisting of a smoother, diamond pattern center with more aggressive side lugs. - This tread pattern allows the rider to keep speed going into corners and maintain control throughout any transition a gravel ride could present. - The GravelKing SS incorporates a supple 126 TPI casing with a nylon puncture resistant belt and Panaracer's proprietary ZSG (Zero Slip Grip) compound. - The SS+ uses the same build as the SS but adds a bead-to-bead layer of Panaracer's ProTite puncture material for even more protection against tread and sidewall cuts for those extra demanding courses or rides with sharp flint rock.

- Extra thick slick tread that resists punctures and gets great wear life, a favorite of fixie riders now available in a multitude of sizes - Twice the amount of tread rubber than standard slick road tires

- The SS and SS+ feature an all-new tread pattern consisting of a smoother, diamond pattern center with more aggressive side lugs. - This tread pattern allows the rider to keep speed going into corners and maintain control throughout any transition a gravel ride could present. - The GravelKing SS incorporates a supple 126 TPI casing with a nylon puncture resistant belt and Panaracer’s proprietary ZSG (Zero Slip Grip) compound. - The SS+ uses the same build as the SS but adds a bead-to-bead layer of Panaracer’s ProTite puncture material for even more protection against tread and sidewall cuts for those extra demanding courses or rides with sharp flint rock.

Race it hard or just head off the beaten path. The Strada Bianca wraps Challenge's proven herringbone tread pattern further around a large volume casing and adds a gravel specific construction to take you comfortably over less-than-perfect surfaces. This is your tire for rough roads, packed dirt, and most gravel surfaces. This TLR clincher with 120TPI nylon casing provides both performance, durability, and puncture protection when combined with the appropriate tubeless sealant.

- Designed for the needs of road and light off-road terrain. - Perfect choice for daily city adventures. - Knobby tread pattern, inherited from the MT60 RS, this tire provides agile road handling, comfort, grip and traction on dirt and gravel. - Lower center line for better rolling and higher lateral knobs to handle light off-road terrain. - Meets ECE-R75 and ECE-R88 certification requirements. - Suitable for traditional and electric bicycles.

- The next generation of tubeless tires. A truly thrilling ride. It's fast. It's reliable. It's light. - The patented MicroSkin construction makes this all possible. The rolling resistance is minimal! - All around cut resistance and puncture protection are extraordinary. - This is the absolute top model from Schwalbe! - The Schwalbe One Pro can also be used with a normal tube, but its true strengths are experienced only in tubeless form.

Schwalbe's Marathon Mondial is the ultimate touring tire ready to travel the world if you want. Handling is great thanks to their TravelStar rubber compound, and their Double Defense technology keeps it relatively light and high-performance while maintaining excellent puncture protection. Whether you're setting out on a cross-country bike tour, cruising on a tandem, or just want peace of mind during your daily commute, the Marathon Mondial is in it for the long haul.

- New tread design, improved compound and quality workmanship - The Schwalbe One sets a new benchmark in terms of quality and performance

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

- Smart DualGuard Protection - Addix-E Compound - ECE-R75 certification makes the tires ready for E-Bikes of all classes

Speaking for itself, Raddler is the radder version of our famed Riddler tread pattern. It combines the expeditious efficiency of a short-knob centerline with get-rad traction of chunky outer knobs. Let’s call it a semi-slick, but one designed to increase confidence while you’re pushing the limits of gravel. Raddler is an excellent choice for loose terrain where traction takes priority, but efficiency is never far behind. Lean it over, take the inside line, brake late, and stay pinned with the Raddler. FEATURES: - Short-knob center tread cuts down on rolling resistance while still providing enough bite for out-of-the-saddle traction. - Center and intermediate knobs on the Raddler are slightly taller than those of the original Riddler, thereby increasing tire lifespan without negatively affecting rolling efficiency. - Tall, toothy outer lugs ensure your favorite gravel descent doesn't unravel in the final corner. - Single-ply, 60tpi casing provides dependable protection at a minimal weight. - Available with black or tan sidewalls in 40mm and 44mm widths. - All Raddler tires are TCS tubeless compatible.

Corsa inspired tread design, for paved surfaces and hard-packed gravel. The smooth Corsa inspired center rolls fast, while the side tread "scales" provide durable bite when cornering and braking. - Three compounds in the tread (3C) for increased wear life and grip - Functionalized GRAPHENE 2.0 compound delivers ultimate performance - Corsa-inspired smooth center tread minimizes rolling resistance - Gravel tire designed for paved surfaces and hard-pack terrains - Side tread “scales” provide dependable bite through corners, and when braking

Our lightest and fastest road tire - 170 TPI casing - HYPR-S compound - K2 puncture protection The Maxxis High Road SL is the fastest and lightest road racing tire we have ever produced. Starting with our lightest and most supple 170 TPI casing, we add our K2 puncture protection, and top it with our fastest compound: HYPR-S. This new compound retains the grip found on the original High Road, but reduces rolling resistance by 12%.

Kenda Street K40 Tire - 27 x 1 3/8 Clincher Wire Black/Tan

Over 10 years of aero product development with a focus on real-world performance has led us to tire development. Tire shape and construction greatly influence aerodynamics, rolling efficiency, and your confidence. SES Road Tires are proven in CFD and the wind tunnel to reduce drag and are constructed to deliver rolling efficiency, durability, and a confidence inspiring ride—regardless of the weather. - Application: Road, Road Race, Triathlon, Time-Trial, All-Road - Smart ENVE System Aero Optimized Shape and Tread Design - Natural and Synthetic Rubber Compound w/Activated Silica for All-Weather Performance - Tubeless Ready and Inner-Tube Compatible - Hookless and Hooked-Bead Rim Type Compatible - Inner-Rim Width Compatibility: 25c (17-21mm); 27c, 29c, 31c (17-25mm) - Weight: 25c (255g), 27c (265g), 29c (275g), 31c (285g) - Vectran Protection Barrier

- K935 Comfort Cross tire (700x40)

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 industry standard in performance training tires is back with a refreshed design and increased performance! The subtle center grooves and shoulder texture retain the secure feel of the Zaffiros of the past while streamlining the look and feel for the future. The alternating slick profile and Graphene compound mimic the feel of the Zaffiro's higher-end siblings while adding durability and a more approachable price point. - Extremely durable tires for performance training - Graphene 2.0 compound and folding bead increase performance - Modern tread design for long-lasting durability

- Continuous center ridge for added speed - Iron cap construction for puncture protection - Reflective sidewall stripes for safety - Water dispersal sipes for better wet grip

- Low profile and compact tread spacing for riding quickly and confidently over any kind of hardpack terrain, whether dry or wet - SpeedGRIP Compound formulation for on and off-road rolling efficiency coupled with high tear resistance and high wet grip - High-strength woven Nylon fabric from bead to bead for added cut and puncture protection - Multi-ply 127tpi Nylon casing construction - Tubeless-ready aramid folding bead optimized for wide rims and lower pressure riding

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

- Tight directional center tread pattern with lateral knobs for traction - Wire bead - Size: 700 x 40c

- Urban/commuter tire with thick siped tread for all-weather traction with low rolling resistance - CB - Cable Bead, type of bead found on economically friendly folding tires that provides a durable, easy-to-install tire bead - 30 TPI

- Hybrid tire for street or light trail use - Wire bead