BMC Fourstroke
Wheel Size: 29 | Front Travel: 120mm (R) / 110mm (01) | Rear Travel: 120mm (R) / 100mm (01)
The BMC Fourstroke is a full suspension cross-country mountain bike designed for riders who want maximum speed and efficiency on modern XC trails. Built for aggressive racing and technical terrain, the Fourstroke platform combines lightweight carbon construction with BMC’s Advanced Pivot System (APS) suspension to deliver efficient pedaling and confident handling. The lineup includes the Fourstroke 01, the longer-travel Fourstroke R 01, and the electric Fourstroke AMP, giving riders multiple ways to approach cross-country riding. For cyclists searching for a carbon XC race bike or a full suspension cross-country mountain bike, the Fourstroke provides a race-proven platform built for speed.
The BMC Fourstroke stands out through its progressive geometry and efficient suspension design. A modern 66.5° head angle and longer front-end create stability on steep descents while maintaining strong climbing performance. APS suspension improves traction and control across rough terrain while keeping the bike efficient during hard pedaling efforts.
The BMC Fourstroke cross-country mountain bike also emphasizes practical race-day features. Internal cable routing through BMC’s ICS (Integrated Cockpit System), space for two water bottles, and optimized frame stiffness help riders maintain speed during demanding race efforts and long marathon rides.
Like the Fourstroke but want some electric assitance? Check out the Fourstroke AMP.
Highlights and information
BMC Fourstroke: The Modern XC Race Machine
Wheel Size: 29 | Front Travel: 120mm (R) / 110mm (01) | Rear Travel: 120mm (R) / 100mm (01)
The BMC Fourstroke is a cross-country mountain bike designed for riders who want maximum speed, efficiency, and control on modern XC race courses. Built for aggressive racing and high-speed singletrack, the Fourstroke combines lightweight carbon construction with BMC’s Advanced Pivot System (APS) suspension to deliver exceptional pedaling efficiency and traction. The platform includes the Fourstroke 01, the longer-travel Fourstroke R 01, and the electric Fourstroke AMP, giving riders multiple ways to approach cross-country performance. For riders searching for a carbon XC race bike or a full-suspension cross-country mountain bike, the Fourstroke offers a race-proven platform built to perform on today’s demanding XC terrain.
The BMC Fourstroke stands out through its progressive XC geometry and race-focused suspension design. A modern 66.5° head angle and longer front-end create stability and confidence on technical descents while maintaining efficient climbing performance. Combined with BMC’s APS suspension kinematics, the bike delivers excellent traction and efficient power transfer across rough terrain.
The BMC Fourstroke cross-country mountain bike also incorporates thoughtful design details built for racing and long-distance performance. Integrated cable routing through BMC’s ICS (Integrated Cockpit System), space for two water bottles, and optimized frame stiffness help riders maintain efficiency during demanding race efforts and marathon events.
WHY THE BMC FOURSTROKE STANDS OUT
The BMC Fourstroke was engineered specifically for modern cross-country racing. XC courses continue to become more technical and demanding, requiring bikes that climb efficiently while maintaining control on steep descents and rough terrain. The Fourstroke platform addresses these challenges with progressive geometry and a highly refined suspension system.
At the heart of the bike is BMC’s Advanced Pivot System (APS) dual-link suspension design. APS suspension balances pedaling efficiency with active traction, allowing riders to maintain speed while navigating technical terrain. The suspension remains efficient under power while absorbing impacts that could otherwise disrupt momentum.
Higher-end Fourstroke models also introduce innovative race technology such as Autodrop, an integrated dropper seatpost designed to automatically lower the saddle during technical sections. Combined with lightweight carbon construction developed in BMC’s Impec Lab, the Fourstroke delivers the performance required for elite cross-country racing.
WHO SHOULD RIDE THE FOURSTROKE?
The BMC Fourstroke is designed for riders who prioritize speed and efficiency on cross-country trails and race courses. Competitive XC racers will benefit from the bike’s efficient pedaling platform and responsive handling, allowing them to maintain momentum through technical sections and aggressive climbs.
This model is also an excellent choice for riders entering marathon races or long-distance XC events where efficiency and comfort over extended rides are critical. The suspension design helps smooth rough terrain while maintaining excellent power transfer.
Riders searching for a cross-country mountain bike, carbon XC race bike, or full suspension XC bike will find the Fourstroke platform delivers the performance needed for modern trail networks and competitive race environments.
WHAT CONTENDER BICYCLES LIKES ABOUT THE FOURSTROKE
- Efficient suspension for modern XC racing: BMC’s APS suspension provides excellent traction while maintaining strong pedaling efficiency, allowing riders to stay fast on both climbs and technical descents.
- Progressive geometry for technical courses: The modern geometry adds stability and control when riding aggressive XC trails while preserving the quick handling expected from a race bike.
- Smart race-focused integration: Features like the integrated cable routing, Autodrop dropper technology, and space for two water bottles make the Fourstroke a capable platform for both race day and long training rides.
FRAME MATERIAL
The BMC Fourstroke frame is constructed from lightweight premium carbon designed to maximize stiffness and pedaling efficiency for cross-country racing. The frame structure improves torsional rigidity to deliver excellent power transfer during aggressive accelerations and steep climbs. Internal cable routing through BMC’s ICS (Integrated Cockpit System) maintains a clean and streamlined appearance while protecting cables from trail debris. The frame also includes integrated protection elements and the ability to carry two water bottles, making the Fourstroke well suited for both race courses and long endurance rides.
SUSPENSION SYSTEM
The Fourstroke platform uses BMC’s Advanced Pivot System (APS), a dual-link suspension design developed to balance pedaling efficiency and active traction. APS suspension remains stable under pedaling loads while staying responsive to trail impacts. The Fourstroke 01 uses 110mm front and 100mm rear travel, while the Fourstroke R 01 increases travel to 120mm front and rear for additional capability on technical XC terrain.
GEOMETRY AND FIT
The Fourstroke uses modern cross-country race geometry designed for aggressive riding and technical terrain.
- Progressive race geometry: A 66.5° head angle and longer front end provide stability on steep descents and technical trail features.
- Efficient climbing position: The balanced geometry allows riders to maintain efficient pedaling mechanics during long climbs.
- Confidence on modern XC trails: Geometry tuned for today’s technical courses improves control when navigating rough terrain and fast singletrack.
HIGHLIGHTED MODELS AND COMPONENTS
Fourstroke R 01 ONE
- Frame: Carbon
- Suspension: Öhlins RXC34 Carbon Fork | Öhlins TXC2 Air Shock
- Drivetrain: SRAM XX SL Eagle AXS Transmission
- Wheelset: DT Swiss XRC 1200 — Carbon
Fourstroke 01 ONE
- Frame: Carbon
- Suspension: RockShox SID Ultimate Fork | RockShox SIDLuxe Ultimate Shock
- Drivetrain: SRAM X0 Eagle Transmission
- Wheelset: DT Swiss XRC 1501 — Carbon
Fourstroke LT ONE
- Frame: Carbon
- Suspension: RockShox SID Select+ Fork | RockShox SIDLUXE Select+ Shock
- Drivetrain: SRAM GX Eagle 12-Speed
- Wheelset: DT Swiss M 1900 Wheelset
NOT EXACTLY WHAT YOU'RE LOOKING FOR?
If the Fourstroke feels close but not quite right for your riding style, there are several excellent alternatives worth considering.
- BMC Twostroke: Riders who want a lighter and simpler XC race bike may prefer the Twostroke hardtail. It offers exceptional pedaling efficiency and minimal weight for fast cross-country riding.
- BMC Fourstroke AMP: Riders looking for additional climbing support and extended range may consider the Fourstroke AMP. This electric mountain bike version of the Fourstroke platform adds pedal-assist power while maintaining cross-country performance.
- SCOTT Spark: Another popular cross-country race bike, the SCOTT Spark blends lightweight construction with efficient suspension designed for modern XC courses.
THE BOTTOM LINE
The BMC Fourstroke is built for riders who want a race-ready cross-country mountain bike capable of performing on today’s demanding XC trails. With lightweight carbon construction, efficient APS suspension, and progressive race geometry, it delivers the speed and control needed for competitive riding. Whether tackling technical race courses or long endurance rides, the Fourstroke platform balances efficiency and traction to keep riders moving quickly across challenging terrain.
The BMC Roadmachine is a high-performance endurance road bike designed for riders who want comfort, speed, and versatility on long rides. Built to handle rough pavement, big climbs, and long days in the saddle, the Roadmachine blends endurance-focused geometry with modern carbon performance. The platform includes the premium Roadmachine 01, built from BMC’s flagship 01-grade carbon, delivering a lightweight and responsive ride while maintaining the compliance needed for endurance cycling. For riders searching for an endurance road bike or a comfortable carbon road bike, the Roadmachine delivers the balance of efficiency and stability needed to ride farther and faster.
The BMC Roadmachine stands out through its ability to combine long-distance comfort with performance-focused engineering. BMC’s Tuned Compliance Concept (TCC) Endurance design helps smooth rough pavement while preserving efficient power transfer. With tire clearance designed to accommodate larger road tires and geometry built for stability, the Roadmachine helps riders maintain confidence and control across challenging road conditions.
The BMC Roadmachine endurance road bike also introduces thoughtful integration for long-distance riding. Internal downtube storage provides space for essential ride gear, while the integrated rear light improves visibility in changing conditions. Combined with the ICS (Integrated Cockpit System) and clean cable routing, the Roadmachine delivers a streamlined endurance platform built for riders who want comfort without giving up speed.
Looking for something racier? Try the BMC Teammachine SLR.
The BMC Teammachine is a lightweight race road bike designed for riders who demand climbing efficiency, responsive handling, and modern aerodynamic performance. Built for competitive road cycling, the Teammachine platform blends exceptional stiffness with refined compliance to create a bike that accelerates quickly and maintains speed across varied terrain. The lineup includes both the Teammachine SLR and Teammachine SLR 01, giving riders access to BMC’s race-proven design in multiple performance tiers. For cyclists searching for a lightweight carbon road bike or a race-ready climbing bike, the Teammachine continues to define BMC’s high-performance road lineup.
The BMC Teammachine SLR balances low weight with aerodynamic efficiency. Developed using advanced CFD software and wind tunnel testing, the latest generation improves airflow and drag reduction while maintaining the stiffness and responsiveness expected from a climbing-focused road bike. At the top of the platform, the Teammachine SLR 01 uses BMC’s premium “01” carbon layup to maximize stiffness while keeping overall weight exceptionally low.
The BMC Teammachine SLR road bike also prioritizes ride quality and handling. BMC’s TCC Race compliance helps smooth road vibrations while preserving race-level responsiveness, and the ICS Carbon Evo cockpit provides clean integration with precise steering control for confident descending and aggressive riding.
Looking for an aero advantage? Check out the BMC Teammachine R.
The BMC Teammachine R is an aerodynamic race road bike built for riders who want maximum speed, stiffness, and efficiency in a modern carbon road platform. Developed in collaboration with Red Bull Advanced Technologies, the Teammachine R represents BMC’s most advanced aerodynamic road bike design. Every detail of the frame focuses on reducing drag while maintaining the stiffness and responsiveness competitive riders demand. For cyclists searching for a high-performance aero road bike, the Teammachine R delivers the speed and race-focused design needed for aggressive road racing, solo breakaways, and high-speed efforts.
The BMC Teammachine R stands apart through its advanced aerodynamic engineering and race-first development process. Features like the Halo Fork help manage turbulent airflow created by the front wheel, keeping air moving cleanly around the frame to reduce drag. The deep “Mariana Bottom Bracket” area increases structural stiffness while also optimizing airflow around one of the most critical areas of the bike.
The BMC Teammachine R aero road bike also prioritizes integration and rider control. The ICS Aero cockpit keeps cables fully hidden while creating a low, aerodynamic rider position, and the redesigned seatpost improves compliance while maintaining lightweight construction. Together, these elements create a race machine built to maintain speed from the opening attack to the final sprint.
The BMC Kaius is a carbon gravel race bike built for riders who want maximum speed and efficiency on mixed-surface terrain. Designed specifically for competitive gravel riding, the Kaius blends lightweight carbon construction, aerodynamic integration, and race-focused geometry to create a bike capable of pushing the pace across fast gravel roads and demanding race courses. Developed in BMC’s Impec Lab using advanced composite technology, the Kaius delivers exceptional stiffness and efficient power transfer while maintaining the compliance needed for rough surfaces. For riders searching for a gravel race bike or a high-performance carbon gravel bike, the Kaius offers a platform designed to unlock speed across every surface.
The BMC Kaius stands out through its race-specific gravel geometry and advanced carbon construction. A longer reach shifts the front wheel forward to improve stability and traction on loose terrain, helping riders maintain control at high speeds. BMC’s Tuned Compliance Concept Race design smooths rough gravel roads while preserving efficient pedaling performance during long race efforts.
The BMC Kaius gravel race bike also emphasizes aerodynamic efficiency and integration. BMC’s ICS (Integrated Cockpit System) keeps cables cleanly routed for a streamlined front end, while the Aerocore bottle integration system reduces drag by blending bottle cages directly into the frame. Together, these features create a gravel bike built for speed when every second matters.
If you're looking for a more adventure focused BMC gravel bike, check out the BMC URS.
The BMC URS is an adventure gravel bike designed for riders who want stability, versatility, and comfort when exploring rough gravel terrain. Built for off-grid routes, long-distance gravel rides, and bikepacking adventures, the URS blends lightweight carbon construction with stability-focused Gravel+ geometry and integrated storage features. The platform includes the premium URS 01, the suspension-equipped URS 01 LT, and the versatile URS models, giving riders multiple options depending on how far their adventures take them. For cyclists searching for an adventure gravel bike or a bikepacking gravel bike, the URS delivers the durability and capability needed to handle demanding terrain.
The BMC URS stands out through its innovative Micro Travel Technology suspension system and adventure-ready design. MTT seatstays and the ICS MTT suspension stem add compliance that helps smooth rough surfaces while maintaining efficient pedaling performance. Larger tire clearance further improves traction and comfort when riding loose gravel roads and technical terrain.
The BMC URS adventure gravel bike also focuses on practicality for long rides and remote exploration. Integrated downtube storage allows riders to carry essential gear inside the frame, while multiple cargo mounts provide space for bags and equipment during extended trips. Combined with BMC’s ICS (Integrated Cockpit System) cable routing, the URS offers a clean and capable gravel platform built for adventure.
If you're looking for a racier BMC gravel bike, check out the BMC Kaius. Or, if you're looking for some pedaling assistance, check out the BMC URS AMP.
Wheel Size: 700c | Drive Unit: TQ-HPR50 (50Nm) | Battery Size: 360Wh
The BMC Roadmachine AMP is an electric road bike designed to extend your endurance and amplify your road riding experience. Built around the proven Roadmachine 01 carbon frame, this endurance electric road bike integrates the compact and quiet TQ-HPR50 drive unit directly into the chassis for smooth, natural pedal assistance. Delivering up to 50Nm of torque and powered by a 360Wh integrated battery, the Roadmachine AMP provides the support needed for long climbs and extended rides without compromising ride feel. For riders searching for a carbon electric road bike that maintains traditional road handling, the Roadmachine AMP delivers a seamless blend of performance and assistance.
The BMC Roadmachine AMP stands out through its refined integration and endurance-focused design. The TQ-HPR50 motor system is lightweight and quiet, preserving the balanced handling of a performance road bike. BMC’s Tuned Compliance Concept Endurance technology helps smooth rough pavement while maintaining pedaling efficiency.
The BMC Roadmachine AMP electric road bike also prioritizes real-world usability with integrated rear lighting and clean cable routing through BMC’s ICS (Integrated Cockpit System). The result is a streamlined, high-performance electric road platform built for longer rides and greater range.
Dont want an electric bike? Check out the BMC Roadmachine.
Wheel Size: 29 | Front Travel: 120mm | Rear Travel: 120mm | Drive Unit: TQ-HPR50 | Battery Size: 360Wh
The BMC Fourstroke AMP is a lightweight electric mountain bike built to amplify cross-country and downcountry trail riding. Designed around a full carbon frame and 120mm of front and rear travel, this electric XC mountain bike integrates the compact TQ-HPR50 drive unit directly into the chassis for smooth and natural pedal assistance. Paired with a fully integrated 360Wh battery, the Fourstroke AMP extends climbing range while preserving responsive handling. For riders searching for a carbon electric mountain bike that balances efficiency and trail capability, the Fourstroke AMP delivers performance with added power.
The BMC Fourstroke AMP stands out through its combination of APS dual-link suspension and progressive race geometry. With 120mm of travel and a 66.5° head angle, it provides traction and stability across technical terrain.
The BMC Fourstroke AMP electric mountain bike also emphasizes integration and versatility, offering space for two water bottles or a range extender while maintaining clean lines and balanced handling.
Don't want an electric mountain bike? Check out the BMC Fourstroke
Wheel Size: 700c | Front Travel: 20mm (MTT Fork) | Rear Travel: 10mm (MTT Seatstays) | Drive Unit: TQ-HPR50 (50Nm) | Battery Size: 360Wh
The BMC URS AMP is an electric gravel bike built to unlock longer rides and tougher terrain. Designed around the proven URS adventure platform, this carbon electric gravel bike integrates the compact and ultra-quiet TQ-HPR50 drive unit directly into the frame, delivering up to 50Nm of smooth and natural pedal assistance. Paired with a fully integrated 360Wh battery, the URS AMP extends your gravel range while maintaining balanced handling and control. For riders searching for a high-performance electric gravel bike, the URS AMP offers amplified exploration without compromising ride feel.
The BMC URS AMP stands apart through its combination of electric support and Micro Travel Technology suspension. A 20mm MTT suspension fork and 10mm rear stay compliance improve traction and comfort on rough gravel roads and technical terrain.
The BMC URS AMP electric gravel bike also emphasizes real-world adventure capability with integrated cargo mounts and clean cable routing through BMC’s ICS (Integrated Cockpit System). The result is a refined, adventure-ready platform built to take you further off the map.
Not interested in an electric bike? Check out the BMC URS.
At Contender Bicycles, our best tools for selling bikes are the people who ride them. Everyone at Contender Bicycles has extensive experience riding bikes across many brands. If you have any questions or want to discuss build options, we are here to help.