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Mountain Frames

Pivot Cycles LES 27.5 Frame Kit
Wickedly Fast. Ridiculously Fun. The LES 27.5 is a hardtail aficionado’s dream machine—an ultra-light chassis with BMX-like handling and the rollover advantage of bigger wheels, all in a snappy, fast-accelerating package to fit a wide range of rider sizes. It features new-school hardtail racing geometry with category-redefining short chainstays, allowing the bike to move over trails with a rare agility not often found in serious racing hardtails. With clearance for up to 2.6-inch-wide tires and designed to work with forks from 100–130mm travel, the LES 27.5 is equally at home on a twisting short track as it is through black-diamond terrain. It’s wickedly fun, hyper-capable, and ready for rapid-fire accelerations through rollers, berms, and jumps. The LES 27.5 is built on an ultra-light, ride-tuned carbon frame featuring leading-edge carbon fiber materials and Pivot’s proprietary hollow core internal molding technology. Specific frame features include the oversized box section downtube and bottom bracket area, tapered head tube, and seat and chainstay shaping designed to reduce rider fatigue and trail vibration. The design incorporates boost 110mm front and 148mm rear dropout spacing. Besides the added clearance for bigger tires, boost spacing allows you to take advantage of wider hubs for stiffer wheels and the most precise handling and responsiveness to rider input. Full-length internal cable routing via Pivot’s exclusive, easy-to-maintain Cable Port System keeps cables clean, quiet, and protected, and allows seamless integration of electronic drivetrains. The LES 27.5 is easily 2x and 1x gearing compatible. For those who love the simple functionality of 1x systems, the removable front derailleur mount offers an incredibly sleek, clean installation with almost no evidence of the un-needed hardware. With a racing pedigree that holds victories in professional races around the world, the LES 27.5 is built to excel.
Trek Supercaliber Frameset
Supercaliber Frameset is built with light-yet-tough OCLV Mountain Carbon and our exclusive IsoStrut integrated shock for a cross country race bike that's insanely fast and capable. Pair it with a 100mm fork and your favorite parts spec for a field-leading build that'll crush even the toughest courses. It's right for you if... You’re looking to build up a super light and capable cross country race bike. You know you want the efficient yet plush ride our IsoStrut shock provides, but you want to spec the rest with parts you've hand-picked to suit your preference. The tech you get An ultra-lightweight, full OCLV Mountain Carbon frame with 60mm of travel and Trek's exclusive IsoStrut Fox Performance shock designed specifically for Supercaliber. Plus, Control Freak internal routing and a Knock Block headset. The final word Supercaliber Frameset lets you build up a pro-level cross country race bike just the way you like it. The OCLV Mountain Carbon frame is lightweight and strong, and comes with our exclusive IsoStrut shock for efficient capability. Why you'll love it - Supercaliber is a World Cup-worthy bike that’s quick, capable of soaring through techy terrain, and nearly as light as a hardtail - Our exclusive IsoStrut shock provides tuneable, damped suspension for a smooth and efficient ride - Pivotless seat stays save on weight and actively bend to help soak up trail chatter
Trek Session AL 27.5 Frameset
Session AL 27.5 frameset is a burly alloy downhill mountain bike frame that's equally at home between the tape and at the DH park. It's built for 27.5-inch wheels, with 210mm of travel and a FOX Performance VAN shock tuned by Trek Suspension Lab. It's right for you if... You're looking to build a rugged DH or park bike for the biggest trails out there, and want a 27.5-inch optimized frameset with exclusive trail tech, like adjustable Mino Link geometry, that can't be found anywhere else. The tech you get A burly Alpha Platinum Aluminum frame, an adjustable FOX Performance shock with 210mm of travel, integrated frame protection, FSA Orbit headset, and exclusive trail tech like ABP, Full Floater, and Mino Link. Built for 27.5-inch wheels. The final word This burly frameset is perfectly capable of taking on the roughest, fastest descents you can find, and it's equally at home in the park, too. The best DH frame tech, a stable geometry, and a quality shock give you a head start on your dream downhill rig. Why you'll love it 1 - Session has the heart of a monster truck: it rolls over everything, gives you the confidence to take on rougher trails, and saves you when you don't take the right line 2 - Quality FOX Performance suspension and our ABP frame design keep you in control 3 - Race or get rowdy? This bike does both 4 - 27.5 wheels are great for flicking the bike around through the most technical trail
Pivot Cycles LES Frame Kit
When Every Second Counts In a sport where success is measured in half seconds, racers are looking for every possible advantage—and that’s exactly what the Pivot LES provides. The LES combines incredible efficiency with the smoothness and trail tuning that the world’s best athletes need to outlast and outpace the competition. World Cup racers and XC enthusiasts seeking a hardtail option that excels on every kind of terrain love Pivot’s new-school racing geometry. A slightly slack head angle (69.3-deg when paired with a 100mm fork), low bottom bracket, tight wheelbase, and the improved rollover of its larger-diameter wheels give the LES every advantage while climbing, and make this hardtail far more capable while descending and cornering on technical trails. Specific frame features include the oversized box section downtube and bottom bracket area, tapered head tube, and meticulously engineered seat and chainstays. Combined, these features offer the best ride feel and significantly reduce athlete fatigue on even the longest courses. Efficiency freaks will love the extra power you can lay down with ultra-stiff Boost wheels, and the extra room between hub flanges improves ride feel and durability, especially on 29-inch wheels. The Cable Port System means that whether you choose to go the traditional shifting route or opt for Shimano’s Di2 system, all your cables, housing, wires, and batteries are neatly tucked away for the ultimate in weather and impact resistance, no matter what setup you choose. Compatible with 29 x 2.3-inch or 27.5 x 2.8-inch tires, and with the ability to run 1x, 2x, or singlespeed drivetrains, the LES is a world class XC hardtail with no shortage of versatility.
Pivot Cycles Mach 4 Carbon Frame Kit
Race Tested. Trail Proven. The Mach 4 Carbon offers the perfect balance of speed and nimble handling. This bike is a demon on any cross-country racecourse, proven in both the Olympics and on the World Cup circuit. With a bit more suspension travel than a traditional XC bike, mid-size 27.5-inch wheels, and a shorter wheelbase, the Mach 4 Carbon possesses a playfulness that makes it a blisteringly fast trail bike. The Mach 4 is constructed of a full carbon frame featuring leading-edge carbon fiber materials and Pivot’s proprietary hollow-core, internal molding technology. The frame accommodates tires up to 2.6-inch and features hassle-free, full-length internal cable routing that’s Di2 compatible and a fully redesigned rear triangle with increased stiffness. The confident handling is complemented by the 148mm BOOST rear hub spacing to provide instant response while maintaining rolling speed through even the roughest sections of a racecourse. The frame design features short chainstays, a spacious cockpit, and an incredibly stiff carbon chassis that enables you to thread the needle on particularly tight trails and tackle uphill technical challenges you’ve never dreamed of cleaning. However, it's when you're descending that the Mach 4 Carbon reveals its trail-bike chops. With ultra-stable geometry, a low BB height, and 115mm of dw-link suspension, you can unleash on technical features and square-edge hits with confidence and speed. As race courses evolve to be more and more technically challenging, Pivot’s next generation race/trail geometry is the answer to hitting everything just a little bit faster on every lap. And, the Mach 4 is available in either trail-oriented or XC racing-focused complete bike builds, each assembled to perfection to give you the best experience out on the trail. For racers, the ability to unleash on descents is matched only by the bike’s World Cup pedaling efficiency and power transfer. Whether it is time to cut loose on your favorite trail or crush the competition at your next race, the Mach 4 Carbon stands poised for speed.
Pivot Cycles Mach 4 Carbon Frame
Race Tested. Trail Proven. The Mach 4 Carbon offers the perfect balance of speed and nimble handling. This bike is a demon on any cross-country racecourse, proven in both the Olympics and on the World Cup circuit. With a bit more suspension travel than a traditional XC bike, mid-size 27.5-inch wheels, and a shorter wheelbase, the Mach 4 Carbon possesses a playfulness that makes it a blisteringly fast trail bike. The Mach 4 is constructed of a full carbon frame featuring leading-edge carbon fiber materials and Pivot’s proprietary hollow-core, internal molding technology. The frame accommodates tires up to 2.6-inch and features hassle-free, full-length internal cable routing that’s Di2 compatible and a fully redesigned rear triangle with increased stiffness. The confident handling is complemented by the 148mm BOOST rear hub spacing to provide instant response while maintaining rolling speed through even the roughest sections of a racecourse. The frame design features short chainstays, a spacious cockpit, and an incredibly stiff carbon chassis that enables you to thread the needle on particularly tight trails and tackle uphill technical challenges you’ve never dreamed of cleaning. However, it's when you're descending that the Mach 4 Carbon reveals its trail-bike chops. With ultra-stable geometry, a low BB height, and 115mm of dw-link suspension, you can unleash on technical features and square-edge hits with confidence and speed. As race courses evolve to be more and more technically challenging, Pivot’s next generation race/trail geometry is the answer to hitting everything just a little bit faster on every lap. And, the Mach 4 is available in either trail-oriented or XC racing-focused complete bike builds, each assembled to perfection to give you the best experience out on the trail. For racers, the ability to unleash on descents is matched only by the bike’s World Cup pedaling efficiency and power transfer. Whether it is time to cut loose on your favorite trail or crush the competition at your next race, the Mach 4 Carbon stands poised for speed.
Pivot Cycles Firebird 27.5 Frame Kit
The Firebird is both an enduro bike that devours blazing descents and a technical climber that gains elevation astonishingly well. For enduro racers, the tough and light Firebird’s peerless climbing traction, descending capability, and instant acceleration make it the perfect choice for the steep, punishing courses of the Enduro World Series. Long days both up and down the mountain require a strong chassis that is light enough to make climbing fun. With that in mind, Pivot designed the Firebird around a bomber—yet ultra-light—full carbon frame featuring leading-edge carbon fiber materials and Pivot's proprietary molding technology. It features long and low geometry for a confident, stable stance, and ultra-short chainstays that make easy work of the tightest trails. For park riders, the Firebird has that nimble, snappy feel that encourages bold line choices yet allows you to stay in complete control at World Cup speeds. Equipped with a burly Fox 36 Factory 170mm-travel fork, this bike makes short work of technical downhill sections, while the dw-link suspension maintains pedaling efficiency when climbing. The Firebird features the Pivot Cable Port system, which offers easy, clean internal routing of shifters, brakes, and droppers and features large ports for quick and easy routing and service. Housing clamps at entry and exit points keep all your lines totally secure and quiet. Designed with high-performance, rugged riding in mind, the Firebird is the no-compromise, Holy Grail of long-travel mountain bikes.
Pivot Cycles LES 27.5 Frame
Wickedly Fast. Ridiculously Fun. The LES 27.5 is a hardtail aficionado’s dream machine—an ultra-light chassis with BMX-like handling and the rollover advantage of bigger wheels, all in a snappy, fast-accelerating package to fit a wide range of rider sizes. It features new-school hardtail racing geometry with category-redefining short chainstays, allowing the bike to move over trails with a rare agility not often found in serious racing hardtails. With clearance for up to 2.6-inch-wide tires and designed to work with forks from 100–130mm travel, the LES 27.5 is equally at home on a twisting short track as it is through black-diamond terrain. It’s wickedly fun, hyper-capable, and ready for rapid-fire accelerations through rollers, berms, and jumps. The LES 27.5 is built on an ultra-light, ride-tuned carbon frame featuring leading-edge carbon fiber materials and Pivot’s proprietary hollow core internal molding technology. Specific frame features include the oversized box section downtube and bottom bracket area, tapered head tube, and seat and chainstay shaping designed to reduce rider fatigue and trail vibration. The design incorporates boost 110mm front and 148mm rear dropout spacing. Besides the added clearance for bigger tires, boost spacing allows you to take advantage of wider hubs for stiffer wheels and the most precise handling and responsiveness to rider input. Full-length internal cable routing via Pivot’s exclusive, easy-to-maintain Cable Port System keeps cables clean, quiet, and protected, and allows seamless integration of electronic drivetrains. The LES 27.5 is easily 2x and 1x gearing compatible. For those who love the simple functionality of 1x systems, the removable front derailleur mount offers an incredibly sleek, clean installation with almost no evidence of the un-needed hardware. With a racing pedigree that holds victories in professional races around the world, the LES 27.5 is built to excel.
Pivot Cycles LES Fat Frame
The Pivot LES Fat is the world’s most versatile big-tire machine. It's compatible with almost every wheel size available, from 26-inch to 27.5-inch Fat to 29er. The perfect wheel and tire combination? That’s always open to debate. But one thing is beyond dispute: No matter which wheel size you choose, your bike should handle great. Pivot's proprietary Swinger II dropout system guarantees that’s always the case, no matter which wheel and tire combination you use. The ingenious dropouts maintain ideal geometry via an indexed adjustment arc designed into the dropouts—the bigger the wheel and the more clearance you choose, the lower the bottom bracket. The LES Fat full carbon frame features a svelte top tube and seatstay shaping for comfort on long rides and epic adventures. The full carbon frame features leading-edge materials and Pivot's proprietary hollow-core, internal-molding process. This coveted technology enables Pivot to create an ultra-lightweight frame featuring the largest downtube in the category and a 132mm Press Fit BB for best-in-class power transfer. Additional frame details include the Cable Port System for clean and easy cable routing, three water bottle mounts, and a narrow Q-Factor for better pedaling ergonomics. The LES Fat frameset includes a Pivot-designed carbon, rigid fork that easily accommodates any wheel size with clearance to spare. This full carbon fork features 150mm dropout spacing—the same spacing as fat bike suspension forks, so you can use the same wheels with rigid and suspension forks. Looking for a bike that's ready for anything? The LES Fat is a four-season hardtail that can take you from singletrack to snow to sand with no compromises.
Trek Session 27.5 Carbon Frameset
Going down? World Cup champion Session is built to win. An all-new OCLV Carbon frame, updated geometry, advanced air shock, and a stiffer chassis make this downhill race bike faster than ever. Session is the DH bike that excels on downhill's most brutal courses. Take on any terrain with our most advanced suspension and a geometry that can be dialed for every race. Key features: - Longer, more aggressive geometry keeps you attacking the whole way down - OCLV Mountain Carbon with Carbon Armor is downhill tough - Fine-tune your ride with Mino Link and an all-new adjustable headset system - Fast 27.5" wheels get you down the mountain first
Trek Session C 29 Frameset
While the rest of the industry was mucking about with 29" DH bike prototypes for professional mountain bike racers, we brought the party to the people with our first production 29er downhill bike. The Session C 29 frameset pairs fast-rolling 29er performance and our proven downhill frame technology. It's long, stable, and aggressive, with a geometry dialed for your fastest runs ever. It's Right for You If... You need speed. You live for it. You dream about it. And, when you're on the mountain, you're gonna get after it. You want faster-rolling 29" wheels, a carbon frame, and the latest DH tech out there. The Tech You Get Session 29 is built with ultra-light and ultra-durable OCLV Mountain Carbon, 190mm rear travel with a RockShox Super Deluxe Ultimate DH shock, Carbon Armor, and integrated frame protection like built-in bumpers for a double-crown fork. Plus, it has frame tech that lets you dial your geometry, like Mino Link and the included fixed-angle headset cups. The Final Word This is the fastest downhill bike we make. This 29er-optimized carbon ride is great for rolling over the rough stuff and getting to the finish line with plenty of time to spare. - Rear suspension: RockShox Super Deluxe Ultimate DH, 225x70mm - Weight: M - 3.24 kg / 7.14 lbs - This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg)
Pivot Cycles LES Frame
When Every Second Counts In a sport where success is measured in half seconds, racers are looking for every possible advantage—and that’s exactly what the Pivot LES provides. The LES combines incredible efficiency with the smoothness and trail tuning that the world’s best athletes need to outlast and outpace the competition. World Cup racers and XC enthusiasts seeking a hardtail option that excels on every kind of terrain love Pivot’s new-school racing geometry. A slightly slack head angle (69.3-deg when paired with a 100mm fork), low bottom bracket, tight wheelbase, and the improved rollover of its larger-diameter wheels give the LES every advantage while climbing, and make this hardtail far more capable while descending and cornering on technical trails. Specific frame features include the oversized box section downtube and bottom bracket area, tapered head tube, and meticulously engineered seat and chainstays. Combined, these features offer the best ride feel and significantly reduce athlete fatigue on even the longest courses. Efficiency freaks will love the extra power you can lay down with ultra-stiff Boost wheels, and the extra room between hub flanges improves ride feel and durability, especially on 29-inch wheels. The Cable Port System means that whether you choose to go the traditional shifting route or opt for Shimano’s Di2 system, all your cables, housing, wires, and batteries are neatly tucked away for the ultimate in weather and impact resistance, no matter what setup you choose. Compatible with 29 x 2.3-inch or 27.5 x 2.8-inch tires, and with the ability to run 1x, 2x, or singlespeed drivetrains, the LES is a world class XC hardtail with no shortage of versatility.
Pivot Cycles Firebird 27.5 Frame
The Firebird is both an enduro bike that devours blazing descents and a technical climber that gains elevation astonishingly well. For enduro racers, the tough and light Firebird’s peerless climbing traction, descending capability, and instant acceleration make it the perfect choice for the steep, punishing courses of the Enduro World Series. Long days both up and down the mountain require a strong chassis that is light enough to make climbing fun. With that in mind, Pivot designed the Firebird around a bomber—yet ultra-light—full carbon frame featuring leading-edge carbon fiber materials and Pivot's proprietary molding technology. It features long and low geometry for a confident, stable stance, and ultra-short chainstays that make easy work of the tightest trails. For park riders, the Firebird has that nimble, snappy feel that encourages bold line choices yet allows you to stay in complete control at World Cup speeds. Firebird makes short work of technical downhill sections, while the dw-link suspension maintains pedaling efficiency when climbing. The Firebird features the Pivot Cable Port system, which offers easy, clean internal routing of shifters, brakes, and droppers and features large ports for quick and easy routing and service. Housing clamps at entry and exit points keep all your lines totally secure and quiet. Designed with high-performance, rugged riding in mind, the Firebird is the no-compromise, Holy Grail of long-travel mountain bikes.
Pivot Cycles M4X Frame
The M4X is the ultimate dual slalom, 4X, and short-travel dirt jump bike, with additional trail bike capabilities. The M4X rails berms and flows through corners—that's a given and proven by Bernard Kerr's King of Crankworx crown and Emilie Siegenthaler's dual slalom prowess. What is truly surprising, is that the same characteristics that make it inspire confidence in the air also make it an incredibly fun trail bike. It's exhilarating to shred a technical trail on an M4X with its razor-sharp, accurate handling and heroic "flickability". As Pivot's pro riders have said, "You can see a corner approaching, enter, and suddenly you've exited at double the speed." The M4X features DW-link suspension design with position-sensitive anti-squat, tuned for instant acceleration and superior control while railing corners and boosting jump faces. Frame details include additional cable routing for a dropper seatpost, ISCG 05 mounts, a 1.5-inch tapered head tube, and 142mm rear spacing with a 12mm through-axle for maximum frame stiffness. The M4X's perfect slalom geometry and careful attention to details deliver pure gravity delight.
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