700c, 27-Inch & 650c

Continental's Olympic II is the world's most formidable racing tire. It is the absolute top-of-the-line tubular for all track disciplines, permitting inflation pressures of up to 220 psi. This tire has also been optimized for exceptionally low rolling resistance and minimum weight. Plus, Continental's Black Chili rubber compound provides a fantastic grip on both wood and cement tracks and outstanding durability. The Olympic is your new secret weapon!

When you're looking for a great set of tubulars for your race rig, Continental has you covered with their hand made in Germany Attack and Force Comps. The Attack is designed for use as a front tire with a supply 3-ply, 110 thread-per-inch casing for sweet compliance to smooth every ride. And, the Force is designed as a rear tire with a stiffer 3-ply 180 thread-per-inch casing for excellent power transmission and increased durability. Both tires also boast Conti's Black Chili rubber compound for excellent cornering and high-mileage lifespan, Vectran Breaker puncture protection, and Conti's TirePositioningSystem (TPS) to maximize aerodynamics.

Power Cross Jet tire features small blocks on the tread pattern provide excellent tread strength and maximum speed. - Improved transmission of pedaling power for controlled grip - Specially adapted reinforcements provide safe, low-pressure riding on all terrains

Michelin Power Cross Mud's tread pattern transmits pedaling power more effectively in mud terrain for a controlled grip. - For low-pressure cycling on rugged terrain using specially adapted cotton reinforcements - PSI: 72 - Weight: 380g

Versatile and confidence inspiring, the Gravdal securely navigates through harsh winter conditions with concave carbide studs for added traction in icy conditions. - Siping creates a more conforming lug for added traction - Concave carbide studs provide traction in the iciest conditions - Reflective strip on sidewall makes you more visible when riding in low-light conditions - Fits most bikes with cantilever or disc brakes

- Built with a cotton and aramid casing with a latex inner tube for maximum performance - New compound from the Power All Season range for maximum grip on wet and dry surfaces - Robustness based on "High-Density Protek" technology, a cross-laid reinforcement on the tire cap covering the tread - Tubulars developed and used by Team Cofidis during the 2018 and 2019 seasons in the World Tour

This race-day-specific weapon has raised the bar on tire technology. The Corsa Speed uses a proprietary Graphene compound, which is then paired with an ultra-fine Corespun-T casing. The end result is a tire that maintains the lowest rolling resistance, while still providing the trademark Corsa suppleness and outstanding wet weather grip - 320 TPI Corespun cotton casing - Proprietary Graphene compound - Lightweight, flexible latex inner tube

BOS is the airport code for Boston, Massachusetts, the original hotbed of North American ‘cross and home to some of the harshest weather and the toughest courses. If you’re pinning on a number in New England you better be ready for rain, roots, ruts and mud. And, you better have a set of Donnelly BOS tubulars in your quiver. This tire is even more aggressive than our mud-proven PDX. It features buttressed side-knobs for outstanding traction in super muddy corners and off-cambers, and a center tread pattern that is all bite when it comes down to a tractor pull. Size: - 700 x 33mm Weight: - 386 grams Type: - Tubular Part #: - D50030 Product Features: - Buttressed side-knobs for superior cornering traction. - Unique center knob pattern designed for maximum traction when you need it most. - Soft rubber compound provides extra grip and shock absorption. - Tubeless design means an airtight casing with no inner tube to puncture. - Rubber-coated sidewalls are extremely durable and prevent deterioration from water, mud and dirt. - No additional sidewall coating necessary. - All in one construction means tread will not peel away from the tubular casing. - Precision design creates a straight tire with no variances in size or alignment. - The tire and base tape are consistently straight making it easy to glue and install to your wheel. - A removable valve core allows for valve extenders installation as well as insertion of tire sealant. - Liquid sealant can be used with all Donnelly tubulars to prevent or repair typical punctures.

The Corsa has been the race-day choice of pros for years and is now better than ever. The Corsa achieves the holy grail of performance: speed, suppleness, durability, and reliability. Whether winning a Grand Tour, or a local crit, the Corsa family delivers world-class performance. - 320 TPI Kevlar reinforced Corespun-K casing for increased sidewall protection - 4 separate Graphene rubber compounds

- P Zero Velo TUB brings the handling and cornering behavior Pirelli is famous for to the finest handmade tubular construction. - It was developed on the fields of World Tour racing and in its debut year it already is a winner of a grand tour. Now available for your own. - Corespun 320tpi w/aramid reinforced casing. - Anti-puncture belt under the tread. - Latex inner tube for better weight, rolling and anti-puncture. - Soft yellow compund for racing usage. - Designed for modern wide tubular rims. - 48 mm RVC valve.

Continental's Cyclo X-King Tubular rolls quickly, grips great and showcases the ride quality that you expect from a handmade German tubular tire. Short, smartly spaced center knobs speed you down the course, and taller square knobs line the shoulders for excellent cornering and control in a variety of conditions. The result is an awesome performing cyclocross tire you'll love.

The Grand Prix 5000 S Tubeless Ready allrounder tires are lighter, faster and supported with stronger sidewalls, compared to previous GP5000 versions. Designed to be compatible with hooked and hookless rims, this new standard in road tubeless ready technology will allow you to ride faster, more comfortable and with increased puncture protection. - Hookless rim compatible up to 73 PSI / 5 bars - The tubeless ready (TR) carcass construction is robust and impervious against damage and penetration from foreign objects. The result: versatile, low weight and an attractive design. In addition, tires made using this technology can also be used as Tubeless or with an inner tube - Vectran Breaker is a synthetically manufactured high-tech fiber with an enormous tear resistance at a very low weight: Exactly the right properties to process into a premium Continental bicycle tire as a puncture protection insert - Active Comfort Technology absorbs vibrations and smoothens your ride - Lazer Grip, to make you one with the road. The lazered micro profile structure expands over the tire’s shoulder and provides outstanding cornering - BlackChili Compound provides the best balance of grip and rolling resistance for cycling

- Enhance your riding experience with the Tubeless Ready version of the MICHELIN Power Cup tire - The tires used by the Cofidis team for riding at monuments and Grands Tours - Speed and comfort provided by Tubeless Ready technology, speed and efficiency inspired by MOTO GP technology - Light and reliable thanks to the Tubeless Shield technology and 4x120 TPI casing - Efficient handling and stability in both wet and dry conditions thanks to the MICHELIN GUM-X compound

- The P ZERO Race TLR is crafted to pack all the benefits of tubeless technology into a race-ready all-rounder which outperforms all cycling clinchers that we have created before, tubulars included. - Pirelli designed this new tubeless-ready tire with the new SmartEVO compound and the TechWALL+ casing technology to provide our Professional riders, as well as all cycling enthusiasts, with a superior product! - Techwall+ Road: New TLR casing technology with multiple layers of reinforcement to provide superior puncture protection within a lightweight structure - 28c and 30c width is compatible with hookless rims according to ETRTO 5bar/73psi max pressure limitations. 24c and 26c width are NOT compatible with hookless rims.

- Maxxis' fastest and lightest road racing tire - Light and supple 170 TPI casing, K2 puncture protection, and HYPR-S combound - This new compound retains the grip found on the original High Road, but reduces rolling resistance by 12%.

Beat your time against the clock with Michelin Power Time Trial tire. More rolling efficiency to drop seconds with the Race2 Compound and 3x180 TPI casing, lightweight thanks to the flexible aramid beads that combine robustness and lightness. Designed exclusively for Time Trial events, triathlons, triathlon marathons. - Race-2 Compound : New generation of rubber compounds designed to improve rolling resistance

The Corsa Control tackles greasy cobbles and rough roads with all the confidence of Vitttoria's classic Corsa. This chevron tread pattern adds dynamic performance to the Corsa Control tread, allowing for increased grip on slippery surfaces, as well as added durability. - 4 separate Graphene compounds deliver speed, suppleness, durability, and reliability - Corsa level confidence for rough roads - Reinforced Corespun-K casing for increased sidewall protection

This race-day-specific weapon has raised the bar on tire technology. The Corsa Speed uses a proprietary Graphene compound, which is then paired with an ultra-fine Corespun-T casing. The end result is a tire that maintains the lowest rolling resistance, while still providing the trademark Corsa suppleness and outstanding wet weather grip - 320 TPI Corespun cotton casing - Proprietary Graphene compound - Lightweight, flexible latex inner tube

P ZERO Race TLR synthesizes the advantages of the tubeless technology in an all-rounder cycling tire for high-intensity training sessions and races. The TechWALL+ Road carcass improves reliability against punctures without affecting the weight of the tire, while the special SmartEVO Compound enhances grip performance both on wet and dry asphalt compared to our previous cycling compounds. The tread pattern of P ZERO Race TLR is an evolution of the design of P ZERO Velo: several seasons of research and development on the roads of the World Tour led to a new design that enhances the behavior of the bicycle in all weather conditions. - Using experience from World Tour racing, coupled with a constant desire for excellence, the Pirelli engineers have developed the best-performing all-around bicycle race tire ever conceived by the iconic brand. - The P ZERO Race TLR is crafted to pack all the benefits of tubeless technology into a race-ready all-rounder that outperforms all cycling clinchers that we have created before, tubulars included. - After three years of development working with the fastest racers at the World Tour level, including men's and women's 2019 UCI World Champions, Pirelli designed this new tubeless-ready tire with the new SmartEVO compound and the TechWALL+ casing technology to provide our professional riders, as well as all cycling enthusiasts, with a superior product! - SmartEVO Compound is a new formulation that enhances the already excellent performance of our previous road cycling compounds. The experience of motorsport competitions and World Tour winner input led to our best road cycling compound ever. - Techwall+ Road: New TLR casing technology with multiple layers of reinforcement provides superior puncture protection with lightweight construction.

The all-new S-Works Turbo RapidAir is our ultimate race day tire. The most efficient, lightest, best handling, and durable tubeless tire we’ve ever made. The original RapidAir is the tire that broke the World Tour’s addiction to tubulars with Tour de France stage wins, Green Jerseys, and Monument victories. Coaxing more speed and a longer life from our fastest race-day tubeless tire was no easy feat. - Casing: 120 TPI - Bead: Foldable 2Bliss Ready - Dual Compound: GRIPTON T2/T5 - Flat Protection: BlackBelt - 700 x 26mm, psi 70-110, approximate weight 230g

- This lightweight and fast tire is crafted to pack the key benefits of tubeless technology into a race-day product, emphasizing speed and handling and exceeding the performance of any other Pirelli bicycle tire in this class, TT and lightweight tubulars included, without compromising on puncture protection thanks to the TechWALL casing technology. - After three years of development working with the fastest racers at the World Tour level, Pirelli designed this new tubeless-ready tire with the new SmartEVO compound to provide our Professional riders as well as all cycling enthusiasts, with our best bicycle racing tire to date! - Techwall Road: New TLR casing technology with an added layer of reinforcement to provide superior puncture protection in a lighter structure - 28c width is compatible with hookless rims according to ETRTO 5bar/73psi max pressure limitations. 24c and 26c width are NOT compatible with hookless rims.

- 120tpi casing with Aramid TechBELT puncture protection - SmartEVO compound

- 120tpi casing with Aramid puncture protection—TechBELT - SmartEVO compound

- Unleashing profile and breathtakingly fast – especially when large volume counts. - As a 30-35mm wide road race version with V-Guard protection, G-One Speed is a tire for the real tough jobs. - It is also a guarantee for maximum speed in the extra-wide 50mm execution – of course not only at the fascinating beach races on Holland's coasts. - The new G-One Speed is an evolution of the former S-One and Big One.

- 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.

Race it hard or just head off the beaten path. The Strada Bianca takes the proven construction of the Paris-Roubaix and adds volume to take you comfortably over less-than-perfect surfaces. Challenge introduces STRADA BIANCA H-TLR 45. The staple herringbone-design tire proves its handmade performances on rougher terrain with a new gravel-specific construction and an added beefier new 45mm size. The STRADA BIANCA 45 is the tire designed to take you comfortably rolling over rough pavement, cobbles, sandy or hardpack fields, to literally floating over the more enduring dry, rocky terrains. It is the first 45mm tire in the Challenge range.

The Grand Prix 5000 is the best all-rounder in the field, brought to a whole new performance level. Ride faster, more comfortably, and with increased puncture protection. Its Active Comfort Technology absorbs vibrations and smooths your ride. Lazer Grip technology, designed to make you one with the road, features a lasered micro profile structure that expands over the tire’s shoulder and provides outstanding cornering. The Vectran Breaker is lighter, more flexible and protects more effectively against cuts than comparable nylon. With incredible tear resistance at a very low weight, it possesses exactly the right properties to be a premium puncture protection insert, while not adversely affecting rolling resistance. The Grand Prix 5000—made to make you better. With Continental's unique and legendary BlackChili tread compound, produced only in Germany, they have revolutionized the sport of cycling. This compound answers the eternal question of the best balance of grip and rolling resistance for cycling. Regular test wins confirm the measurable and noticeable advantages for cyclists, established in both the lab and on the road. The latest polymers, as well as specially developed carbon black particles and filler materials, guarantee ultimate performance.

- Gravel-racing specific tire, derived from our experience in the biggest competitions around the world and feedback from Pro athletes. - Tread design inspired by the Scorpion XC RC. - Key features: Higher average speed on straight and fast lines, improved lateral grip when off-road cornering.

- Tubeless tires guarantee the lowest rolling resistance while maintaining very high puncture resistance

- Ultimate touring tire

- Ultimate touring tire Specs: - Tire Diameter/ISO: 700C/622 - 67 TPI - Bead: Folding - Tire Compound: TravelStar - Tire Technology: DoubleDefense - Tire Type: Clincher

- All-purpose road race tire - Refreshed for 2021 with a new lighter weight casing, upgraded puncture protection, and a revised tread pattern

- Angled side knobs work together with the Super Race carcass to create the best cornering grip. - Super Race carcass (Souplesse construction) for a particularly smooth ride with low rolling resistance and high puncture protection. - New boomerang profile for the best uphill traction and ideal rolling behavior. Specs: - Tire Diameter/ISO: 700C/622 - 67 TPI - Bead: Folding - Tire Compound: Addix Race - Tire Technology: Super Race, TL Easy - Tire Type: Tubeless Ready - Tubeless Technology: Tubeless Easy

- Race oriented semi-slick tire - Maximum efficiency on light terrain, hard pack, and asphalt - Supple construction for a smooth ride and high puncture protection for tough racing conditions - Super Race construction

- The exceptional profile and OneStar rubber compound make the Schwalbe X-One one of the fastest cross tires ever. - To make it the absolute high-flyer, mount it without a tube on a tubeless-compatible wheel. - In combination with the right wheel you can run tubeless tires for cyclo-cross with extremely low air pressures without fear of "Burping" (unwanted air leakage). - For instance, it works extremely well with the Iron Cross from No Tubes.

The Corsa Control tackles greasy cobbles and rough roads with all the confidence of the Vitttoria's classic Corsa. This chevron tread pattern adds dynamic performance to the Corsa Control tread, allowing for increased grip on slippery surfaces, as well as added durability. - 4 separate Graphene compounds deliver speed, suppleness, durability, and reliability - Corsa level confidence for rough roads - Reinforced Corespun-K casing for increased sidewall protection

Speed and reliability for riders pursuing a new performance level Corsa N.EXT is the exciting new addition to the Corsa family. Designed to satisfy the requirements of enthusiast cyclists who clock up the miles on long and demanding weekly rides, Corsa N.EXT combines Vittoria's peerless knowledge of racing performance with the durability of a long-lasting nylon casing that uses a unique Silica and Graphene compound for improved rolling efficiency, grip and longer wear-life. To increase puncture protection, the central section of the casing features 3 layers of nylon as well as an additional puncture protection belt. Corsa N.EXT is the first road racing tire to feature a QR Code—printed on the tire hot patch—for easy access to useful technical information about the tire. Racing inspired speed and feel, with the everyday durability of nylon construction - New combination of Silica and Graphene compound for improved rolling efficiency, grip and longer wear-life - Nylon casing provides durability, for daily racers who want to raise the bar of their performance relying on a long-lasting tyre - Proven tread design used by Vittoria teams in the World Tour

- Tire Diameter/ISO: 700C/622 - Tire Width: 28C - TPI: 60TPI - Bead: Folding - Tire Compound: Smartnet Silica - Tire Technology: ArmourTech - Tire Type: Tubeless Ready - Tire Width Range: 18 - 29 - Labeled Size: 700x28C - Tubeless Technology: Tubeless Ready

- The Successor of the famous P Zero Velo 4S: a further evolution of our best-selling all-season tire. - SmartEVO compound enhances performance on wet and cold tarmac, while the new TechBELT construction continues to provide the handling and racing feeling that made the PZero family famous all over the world. - A slightly thicker tread improves the mileage of the tire, making it the ideal solution to cycle in every season without giving up on its racing soul.

The next evolutionary phase. Revised tread design, fitted with the latest tire technology. The new Marathon Almotion is safe, fast, and agile. The new, powerful ADDIX compound boosts riding performance. Ideal for intensive touring by bike or e-bike (E-25).

Our all-year-round tyre and a reliable companion for those high mileage road cyclists - Solid partner for training rides and in competition, come rain or shine - Outstanding puncture protection, reliable tread with good grip and the highest mileage - A tire with a superior durability ready for any season

Fast racing tire specially designed for E-performance: The V-Guard puncture protection belt ensures high puncture resistance and the new Addix Race Compound offers tenacious grip at high cornering speeds and extensive durability. - E-One has ECE-R75 approval for fast E-Bikes

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

The Almanzo is the ideal tire for gravel and adventure riders seeking more control than the Strada Bianca and lower resistance than the Gravel Grinder. 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 combines a supple, yet durable Corazza Armor casing for improved sidewall protection, excellent puncture-resistance from our PPS Ganzo, and a high mileage, grippy, natural SMARTplus compound. And puncture protection is enhanced when combined with the appropriate tubeless sealant. 260TPI SuperPoly casing.

Make your mark on the gravel scene with the Gravel Grinder. This tire combines a fast rolling diamond center with aggressive shoulder knobs that only hook-up when the terrain gets soft, muddy, or a bit sketchy. 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 combines a supple, yet durable Corazza Armor casing for improved sidewall protection, excellent puncture-resistance from our PPS Ganzo, and a high mileage, grippy, natural SMARTplus compound. And puncture protection is enhanced when combined with the appropriate tubeless sealant. 260TPI SuperPoly casing.

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%.

The Schwalbe One family provides the right tire for the latest gravel bike trend. The smooth rolling G-One profile and Tubeless Easy technology make it a pleasure to ride over forest paths and rolling fields. - Tubeless-Easy with MicroSkin fabric for gravel riding - OneStar compound helps to achieve an extremely low rolling resistance

The Schwalbe One family provides the right tire for the latest gravel bike trend. The smooth rolling G-One profile and Tubeless Easy technology make it a pleasure to ride over forest paths and rolling fields. - MicroSkin Casing

The G-One Bite feels pretty good on the road, but its true strength comes through off-road. Constructed for more off-road use than its stablemates, the open tread design and strong outer blocks provide stability when cornering and deliver this G-One the perfect "Bite".

The G-One Speed offers an unleashing profile and is breathtakingly fast—especially when large tire volume is crucial. - G-One Speed is a tire for the real tough jobs - Guaranteed for maximum speed

Calling the S-Works Mondo just an endurance tire is an insult. We believe it’s the fastest piece of endurance engineering on earth. Delivering everything riders demand from a class-leading endurance tire — long miles durability, all-weather traction, incredible puncture protection — and amplifying it with the performance riders want, like best-in-class efficiency and light weight, the S-Works Mondo tubeless tire is the fastest endurance tire ever. 11% more efficient and 5% lighter than any other endurance tire on the road*, it’s our go-anywhere, do-anything, optimum combination of speed and durability. Available in 28, 32, and 35 mm widths, you’ll be ready for anything the road ahead throws at you. The World Was Made For Mondo. *When measured in a lab setting S-Works Mondo showed the lowest rolling resistance numbers and lowest weight of any competitor in its class. - Casing: 120 TPI - Bead: Foldable 2Bliss Ready - Dual Compound: GRIPTON® T2/T5 - Flat Protection: GRID RACE and BlackBelt - 700 x 28mm, psi 70-95, approximate weight 310g - 700 x 32mm, psi 50-80, approximate weight 330g - 700 x 35mm, psi 50-80, approximate weight 360g

When tubeless performance on race day is mandatory but durability for rough roads all season is just as important the S-Works 2BR delivers—from cobbled classics to your daily lunch ride. Our all-new Gripton T2 compound is the fastest, most efficient compound we’ve ever created. We’ve combined this with the legendary grip of our Gripton T5 compound on the shoulders to the Turbo 2BR more grip, speed, and durability than ever before—six watts faster vs the previous 2BR and just 260 grams for a 26mm tire. - Casing: 120 TPI - Bead: Foldable 2Bliss Ready - Dual Compound: GRIPTON T2/T5 - Flat Protection: BlackBelt - 700 x 26mm, psi 70-110, approximate weight 260g - 700 x 28mm, psi 70-95, approximate weight 280g - 700 x 30mm, psi 65-90, approximate weight 300g

GRAVEL Designed with the unknown in mind, the Rutland takes the guess work out of selecting the right tire for the ride. Ramped, tightly spaced center lugs reduce rolling resistance while larger, more spaced-out shoulder and transition lugs provide grip in loose conditions. HOW IT WORKS - Center lugs are large and widely spaced for braking and acceleration grip, and ramped to lower rolling resistance. - Transition lugs are spaced out to shed mud; siping conforms to the road surface for increased traction in corners. - Side lugs are staggered to provide traction in more aggressive turns and on loose surfaces.

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.

- An adventure tire designed for mixed conditions - Smooth-rolling center knobs and aggressive shoulder lugs - The combination of smooth-rolling center knobs and aggressive shoulder lugs provide great traction and durability for gravel roads, trails, cyclocross, urban assault and even pavement - The MSO will fit on your cyclocross or gravel bike, commuter, or touring rig - MSO is the airport code for Missoula, Montana, home of the Adventure Cycling Association and the inspiration for countless cycling journeys - Designed to bridge the gap between pavement and blazing your own trail

A unique semi-slick diamond design pattern offers a lower rolling resistance and comfort ride on the street. This tire is also an excellent choice for the hard pack off-road trails and XCO races.

- The grippiest tire in the line - For use in difficult conditions - Disc brakes ready

- Inspire your confidence with the MICHELIN Power Cup tire for racing and training - Speed and efficiency inspired by MotoGP technology - Light and reliable thanks to the MICHELIN Aramid Shield Technology and 3x120 TPI casing - Efficient handling and stability in both wet and dry conditions thanks to the MICHELIN GUM-X compound

- Compound: ZSG AGILE COMPOUND - Casing: Advanced Extra Alpha Cord

The Corsa has been the race-day choice of pros for years and is now better than ever with 4C Graphene compound technology! The latest Corsa is an evolution of the brand and brings multiple industry-first technologies to market. Starting with our supple yet durable 320 TPI Corespun-K reinforced casing and adding a proprietary mix of 4 different Graphene compounds, the new Corsa achieves the holy grail of performance: speed, suppleness, durability, and reliability. Whether winning a Grand Tour or a local crit, the Corsa family delivers world-class performance. - 4 separate Graphene compounds deliver speed, suppleness, durability, and reliability - Reinforced Corespun-K casing for increased sidewall protection - Folding bead