Tires

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.

Lou is the 26 x 4.8" rear-specific mate to Bud. Lou’s tread is much like Bud’s with tall knobs designed to grind, crawl, and claw its way over rooty, rocky, wet, muddy, loose, or otherwise inhospitable terrain. Lou’s tread pattern is a bit different, however, made for stability while both braking and accelerating. Its casing is durable, thin-walled, 120tpi which conforms well to the ground surface shape. - Folding Kevlar bead - Tubeless Ready

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.

This is Bud, a front-specific 4.8" tire designed for 559mm (“26 inch”) rims. While our 100mm Clown Shoe Rims will offer the most ground contact and the best shape profile, Bud (and his brother, Lou) will also work on rims down to 65mm wide. Bud’s aggressive mud- and snow-shedding tread is characterized by tall (7mm), siped knobs, arranged in a pattern ideal for the unique requirements of steering and braking. A supple, durable 120tpi casing with folding Kevlar bead conforms well to ground surfaces of all types. - Folding bead - Casing: 120 TPI - Max pressure: 30psi - Weight: 1600g

- Works best on muddy tracks. - Its DH Mud tread design, Magi-X DH rubber compound, Down Hill Shield casing and Cuttable Blocks technology allow you to excel in all wet conditions.

The ‘turbo’ of spike tires. With 361 spikes it bites firmly into icy roads. The tungsten carbide core of each spike is clad in weight-saving aluminum. The scales stop at 695 g, yet the tire remains agile and sporty. - Schwalbe's Performance line of tires offers excellent quality and the best value for an intensive-use tire.

Meet Edna: Surly's latest ultra-versatile fat bike tire. Edna was designed to perform admirably on a wide variety of terrains. Wanna go ride some super loose dirt or snow trails? Do it. Feel like riding over the pulverized bones of your enemies or, as some people call it, sand? Go for it. Hardpack? Lean back and let ‘er rip. Edna’s unique tread pattern has enough lug to provide bite on the loose stuff and a tight center tread that doesn’t drag on the hard. Add in a 4.3” footprint and you have enough traction and float to ride wherever and whenever you damn well please. - Folding bead - Casing: 60 TPI - Max pressure: 30psi - Weight: 1330g

Let Dunderbeist loose on your local groomed single track and feel the aggressive tread claw through the snow with unrivaled propulsion and braking traction. Its 4.6-inch footprint provides enhanced flotation and is compatible with a wide range of frames. Dual compound rubber rolls fast and keeps you in control while shredding the berms. Point uphill and feel the Dunderbeist dig in as you attack climbs covered in loose, unconsolidated snow. Pair Dunderbeist with its sibling front tire, Flowbeist, for the ultimate combination of traction and control. - 4.6” footprint - Designed for optimal use as a rear tire - Aggressive side lugs comprised of soft rubber compound - Ideally paired with Flowbeist front tire

Flowbeist attacks groomed single track with confidence thanks to an ultra-aggressive tread that’s ready for whatever the trail throws at it. Designed for optimal use as a front tire, its wide 4.6” footprint floats well, rolls fast and is compatible with a wide range of frames and forks. Digging into berms brings the Flowbeist alive as its tall side lugs with softer compound rubber claw the snow. Hit the brakes on tight twisty single track and the aggressive tread design digs in to keep you and your bike in control. Pair Flowbeist with its sibling rear tire, Dunderbeist, for the ultimate combination of traction and control. - 4.6” footprint - Designed for optimal use as a front tire - Aggressive side lugs comprised of soft rubber compound - Ideally paired with Dunderbeist rear tire

The Assegai tire is designed primarily for downhill racing and aggressive trail riding in mixed conditions. The knob height falls between the Minion DHR II and the Shorty. Like the Minion tires, the center knobs are heavily ramped on the leading edge to reduce rolling resistance. A small knob located between the center tread and side knobs provides a smooth transition while cornering. The Assegai offers predictable traction, even over slippery roots and rocks. - World Cup Champion Greg Minnaar's signature tire

Troy Brosnan's go-fast signature tire. - Ideal for dry, fast trails - Tubeless compatible - Wide Trail casing optimized for 30-35mm rims Designed in conjunction with Aussie DH racer, Troy Brosnan, the Dissector seeks to minimize drag while retaining cornering control. This versatile tire can be used as a front, a pair, or as a rear, depending on trail conditions.

Troy Brosnan's go-fast signature tire. - Ideal for dry, fast trails - Tubeless compatible - Wide Trail casing optimized for 30-35mm rims Designed in conjunction with Aussie DH racer, Troy Brosnan, the Dissector seeks to minimize drag while retaining cornering control. This versatile tire can be used as a front, a pair, or as a rear, depending on trail conditions.

The Minion DHF has become the benchmark for riders wanting maximum control in loose and muddy conditions. - Directional ramped center knobs provide low rolling resistance - Minion signature channel cut side knobs provide excellent cornering traction - Intended use: loose, loose over hard, medium, wet

Refined, redesigned, and ready to shred any line - Ramped and siped tread to roll fast and track straight under braking - Wide trail (WT) casing specs are optimized for 30-35mm inner width rims With side knobs borrowed from the legendary Minion DHF but widened to provide more support, the DHR II corners like no other. The center tread features ramped leading edges to improve acceleration and sipes to create a smooth transition when leaning the bike. Paddle-like knobs on the center tread dig in under hard braking and help keep the bike under control. Pair it with a Minion DHF up front for the ultimate aggressive trail riding tire combo!

Refined, redesigned, and ready to shred any line - Ramped and siped tread to roll fast and track straight under braking - Wide trail (WT) casing specs are optimized for 30-35mm inner width rims With side knobs borrowed from the legendary Minion DHF but widened to provide more support, the DHR II corners like no other. The center tread features ramped leading edges to improve acceleration and sipes to create a smooth transition when leaning the bike. Paddle-like knobs on the center tread dig in under hard braking and help keep the bike under control. Pair it with a Minion DHF up front for the ultimate aggressive trail riding tire combo!

Refined, redesigned, and ready to shred any line - Ramped and siped tread to roll fast and track straight under braking - Wide trail (WT) casing specs are optimized for 30-35mm inner width rims - DH casing features 2 ply 60 TPI construction with a butyl reinforced sidewall for maximum durability With side knobs borrowed from the legendary Minion DHF but widened to provide more support, the DHR II corners like no other. The center tread features ramped leading edges to improve acceleration and sipes to create a smooth transition when leaning the bike. Paddle-like knobs on the center tread dig in under hard braking and help keep the bike under control. Pair it with a Minion DHF up front for the ultimate aggressive trail riding tire combo!

Refined, redesigned, and ready to shred any line - Ramped and siped tread to roll fast and track straight under braking - Wide trail (WT) casing specs are optimized for 30-35mm inner width rims - DH casing features 2 ply 60 TPI construction with a butyl reinforced sidewall for maximum durability With side knobs borrowed from the legendary Minion DHF but widened to provide more support, the DHR II corners like no other. The center tread features ramped leading edges to improve acceleration and sipes to create a smooth transition when leaning the bike. Paddle-like knobs on the center tread dig in under hard braking and help keep the bike under control. Pair it with a Minion DHF up front for the ultimate aggressive trail riding tire combo!

Aggressive plus tire inspired by the Ikon+ - 27.5+ tire - Designed for aggressive XC trails The Rekon+ is an aggressive trail tire inspired by the Ikon+ for intermediate and technical terrain. Wide knobs down the middle provide control under braking, and L-shaped side knobs ensure support when carving loose turns. With confidence like this you can race more and scout less with the Rekon+.

- Gen 2 Revised tread pattern - New knob layout based on feedback from World Cup DH and EWS riders - "Doublewide" knob now split into two individual knobs - More supportive cornering knobs - Additional siping to enhance braking and cornering traction - Raised ridges on casing to promote mud clearing

We named this tire for our friend Nate, who is also quite large and aggressive. This tire has a shred-your-face-off, run-over-anything, kung fu grip knobby tread pattern. The casing is round and supple. Tall, widely-spaced knobs are siped for added grip and compliance. The knobs’ wide spacing means they dig deep and still shed the crap you’re riding through. The tread wraps a little around the sides of the tire, providing good knob contour even on very wide rims, which in turn allows good off-camber traction. Similar to our beer preferences, Nate is available in black and tan. - Folding bead - Max pressure: 30psi

- 150th Anniversary Pzero Race Tire - Golden logo and anniversary graphic - 127tpi casing with Aramid puncture protection - TechBELT - SmartEVO compound

The second generation of the legendary High Roller - Easily clears debris - Open tread design - Wide trail (WT) casing specs are optimized for 30-35mm inner width rims An open and aggressive tread design gives the High Roller II excellent soil penetration and mud-clearing ability. A square profile provides a solid, consistent feel across the knobs. Modified knobs on the shoulder and center improve braking performance and traction on hard surfaces. An excellent choice for technical, loose terrain.

Refined, redesigned, and ready to shred any line - Ramped and siped tread to roll fast and track straight under braking - Wide trail (WT) casing specs are optimized for 30-35mm inner width rims With side knobs borrowed from the legendary Minion DHF but widened to provide more support, the DHR II corners like no other. The center tread features ramped leading edges to improve acceleration and sipes to create a smooth transition when leaning the bike. Paddle-like knobs on the center tread dig in under hard braking and help keep the bike under control. Pair it with a Minion DHF up front for the ultimate aggressive trail riding tire combo!

- The new incarnation of the Minion DHR. Ready to shred any line - Excellent cornering traction - Pair it with a Minion DHF up front for the ultimate aggressive trail riding tire combo! - Plus sizes available - Wide Trail casing optimized for 30—35mm rims

The E-Wild features a new generation of top-of-the-range compounds that give better rolling strength and increased efficiency, for more miles of riding. - More grip: Optimal grip with its lateral and central compounds designed to optimize motricity, even on climbs, and transmit the bike's full power - Extra protection: Based on its Pinch Protection technology, which absorbs the energy from pinch flats and its Gravity Shield casing from the Enduro competition range - Same tread design for both Front & Rear, but the rear-specific tire is reinforced for added puncture protection, making it heavier but more robust

The E-Wild features a new generation of top-of-the-range compounds that give better rolling strength and increased efficiency, for more miles of riding. - More grip: Optimal grip with its lateral and central compounds designed to optimize motricity, even on climbs, and transmit the bike's full power - Extra protection: Based on its Pinch Protection technology, which absorbs the energy from pinch flats and its Gravity Shield casing from the Enduro competition range - Same tread design for both Front & Rear, but the rear-specific tire is reinforced for added puncture protection, making it heavier but more robust

The new standard in enduro tires - Dual-compound - Excellent all-around performance - Tubeless Ready (TR) - Wide trail (WT) casing is optimized for 30-35mm inner width rims The Aggressor is designed for high-speed modern mountain bike trails. Advanced knob shaping creates extra gripping edges, and reinforced side knobs offer enhanced stability when cornering at speed. An all-around trail tire excelling on everything from loose cross country race courses to heavy all-mountain riding.

The new standard in enduro tires - Dual-compound - Excellent all-around performance - Tubeless Ready (TR) - Wide trail (WT) casing is optimized for 30-35mm inner width rims The Aggressor is designed for high-speed modern mountain bike trails. Advanced knob shaping creates extra gripping edges, and reinforced side knobs offer enhanced stability when cornering at speed. An all-around trail tire excelling on everything from loose cross country race courses to heavy all-mountain riding.