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Fourstroke 01

THREE

Fourstroke 01 THREE

Every second matters

The rulebook has been thrown away: re-imagine the ultimate XC race bike and join the revolution - where up meets down. Born to surpass the demands of the world’s top XC athletes, the Fourstroke 01 delivers the ultimate performance on the most demanding courses. A purpose-designed race machine, every element of its structure is crafted to optimize speed, save seconds, and keep riders ahead of the pack. Our all-new Race Application Dropper Seatpost (RAD) ensures that its fast and smooth adjustments maximize power and control whatever the gradient, allowing you to ride more dynamically. The revised Big Wheel Concept Race (BWC) geometry has evolved to embody the progressive riding style our athletes display on technical World Cup tracks. The Fourstroke 01 shifts the paradigm. Reel in the competition on the climbs, drop them on the descents. Every second matters.
  • 01 Premium Carbon (F&R), Internal cable management
  • Fox Float 32 SC, Performance, Grip, Remote (100mm), 15x110mm thru-axle
  • SRAM GX Eagle
  • Shimano SLX (160/160mm)
  • DT Swiss X1700 Spline
Technology Focus – Fourstroke 01 THREE

Technology Focus – Fourstroke 01 THREE

RAD seatpost: completely integrated with a low system weight of 345g – the most radical XC dropper seatpost.

Technology Focus – Fourstroke 01 THREE

Lightweight Premium Carbon: a full-carbon system with a new super light carbon upper link. The Fourstroke 01 features a Premium Carbon upper link that saves 40g compared to Aluminum, and provides a stiffer connection between the front and rear triangle.

Technology Focus – Fourstroke 01 THREE

BWC Race Geometry: a radical approach to XC geometry, tailored to a fast and progressive riding style.

Technology Focus – Fourstroke 01 THREE

Integrated fork stopper: smart engineering for optimized cable routing and frame protection. The integrated fork stopper protects the frame from impacts and allows a straight downtube design for improved stiffness and weight. The cable cover allows for clean cable entry and creates an additional protection layer.

Technology Focus – Fourstroke 01 THREE

1 x Specific Frame Construction: designed for ultimate stiffness and improved tire clearance. The 1 x specific design allows us to improve bottom bracket stiffness and the overall frame weight. At the same time it enables us to shorten the chainstays and make ample clearance for wide tires.

Technology Focus – Fourstroke 01 THREE

Integrated protection: molded protections and dedicated mud guards for increased durability. Molded plastic covers on chainstay and lower link ensure durability and a clean look.

Technology Focus – Fourstroke 01 THREE

IP cable routing: end to end guided cable routing for hassle-free installation and reduced maintenance.

Technology Focus – Fourstroke 01 THREE

APS Suspension: unparalleled pedaling efficiency and bump compliance in all conditions

Technology

  • RAD

    Race Application Dropper

    The first integrated dropper post designed for XC racing
    More Information
  • APS

    Advanced Pivot System

    No compromises - APS suspension technology allows you to pedal hard, brake fast, and soak up bumps without compromise.
    More Information
  • BWC

    Big Wheel Concept

    Agility & stability - Purposeful geometry and cockpit design means our 29" bikes are nimble, stable and incredibly efficient.
    More Information

Technical Details

  • FrameFourstroke 01 - Advanced Pivot System, PF92 Bottom Bracket, 12 x 148mm Thru-axle
  • Tubing01 Premium Carbon (F&R), Internal cable management
  • SizeS / M / L / XL
  • ForkFox Float 32 SC, Performance, Grip, Remote (100mm), 15x110mm thru-axle
  • Rear ShockFox Float DPS, Perfomance Elite, Evol, Remote (100mm)
  • Gears1x12
  • ChainwheelSRAM GX Eagle, 32T Black
  • CassetteSRAM GX Eagle, 10-50T
  • ChainSRAM GX Eagle
  • Front Derailleur-
  • Rear DerailleurSRAM GX Eagle
  • ShifterSRAM GX Eagle
  • BrakesShimano SLX (160/160mm) *
  • HandlebarBMC MFB 02, 750mm
  • StemBMC MSM 01
  • SeatpostBMC Race Application Dropper (RAD) 80mm Drop
  • SeatFizik Antares R7
  • HubsDT Swiss X1700 Spline
  • RimsDT Swiss M1700 Spline 25**
  • TyresVittoria Barzo TR, 29x2.25
  • ColourRace Grey
  • Infos*M size spec - rotor size adjusted for some sizes
  • Price USD 6,499
Geometry – Fourstroke 01 THREE
Size S M L XL
Rider height cm <172 172-182 180-188 >188
Stack mm 580 590 600 615
Reach mm 423 445 465 485
Seat tube st mm 420 440 480 510
Top tube tt‘ mm 582 607 630 654
Head tube ht mm 96 107 117 134
Seat angle sa ° 75.6 75.6 75.6 75.6
Head angle ha ° 67.5 67.5 67.5 67.5
Rear center rc mm 429 429 429 429
Front center fc mm 700 726 750 777
Wheelbase wb mm 1129 1155 1180 1206
BB drop mm 44 44 44 44
Fork length fl mm 506 506 506 506
Fork rake fr mm 44 44 44 44
Trail mm 106.5 106.5 106.5 106.5
Crank length mm 170 175 175 175
Stem length mm 50 60 60 70
Stem angle ° -5 -5 -5 -5
Bar width mm 750 750 750 750
Backsweep ° 9 9 9 9
Stand over height mm 738 747 759 768

The ultimate Cross Country race machine

The Fourstroke 01 is born to shave off seconds up and down the toughest XC race courses. Our holistic approach to look at the bike as an entire system allowed us to develop our fastest and most intuitive race bike ever.

The first integrated XC dropper seatpost

RAD (Race Application Dropper) is the world’s first integrated XC dropper post. A genius engineering solution driven by our athletes’ need for modern XC descending performance packed into a featherweight system.

Big Wheel Concept Race Geometry, a new approach

The BWC Race (Big Wheel Concept) geometry supports a progressive XC riding style through the wide-open head angle, long front-end, short chainstays and an innovative stem design.

Built for efficiency

Accept no compromises with a lightweight chassis designed for class-leading stiffness and lightning-fast sprints. The refined APS (Advanced Pivot System) suspension deliver pedaling efficiency, traction and control on every race course.

Array – Fourstroke 01 THREE

Frameset

  • Fourstroke 01 - Advanced Pivot System, PF92 Bottom Bracket, 12 x 148mm Thru-axle
  • R.A.D.Race Application Dropper integrated seatpost - 80mm Travel
  • R.A.D.seatpost,  Big Wheel Concept Race Geometry
  • Sizes: S / M / L / XL
  • Frame Weight*: 2180g
  • Seatpost Weight** : 345g 

Integration

  • Integrated Seatpost
  • Internal Cable Routing
  • Integrated Frame Protection
  • Integrated fork stopper

Integrated Seatpost

  • Frame: Fully integrated rear shock remote lockout, Internal cable management, Integrated mud flap

Technical details

  • 12 x 148mm Boost
  • Fork : Tapered Steerer 1-1/8" to 1-1/2", 44mm offset, 100mm travel
  • Seatpost: R.A.D.Race Application Dropper integrated seatpost - 80mm Travel, Elliptic Shape (34.1x25.6mm
  • Bottom Bracket: PF92
  • Brakes: Postmount 160 / 160***
  • Drivetrain: 1x Specific, Boost chainline,  Replaceable standard or direct mount rear derailleur hangers
  • Tires: 29" / max. Tire width 58mm ****
  • Misc. : 38T maximum chainring - single ring drivetrain  (1X Boost cranks) 
  • Shock dimensions: 185mm x 50mm Metric Shock, Trunnion Mount, 20x8mm hardware

 

*Average sample weight with shock and complete hardware (w/out rear axle)

**Average sample weight (w/out lever)

***Rotor sizes adapted for some frame sizes

****Tire dimensions based on measured tire width

More information

Bike DNA

Fourstroke Technology

If your inner bike-tech geek hasn’t been satisfied with the level of detail you’ve found on this page, then head over to this space we have dedicated exclusively to the Fourstroke.

Innovation

Excitement research

It’s all in the name. At BMC we concentrate on what we do best - making bikes, pure and simple. We focus our energy towards creating the ultimate ride - whether for road, track, or trail, professional athlete, or weekend warrior.

Experience

BMC Tempo

Read compelling stories crafted from inside the world of BMC; interviews with our professional athletes and employees, insights into the BMC cycling culture, and hot secrets from our R&D lab.

Experience

Testrides

Curious about where you can test a BMC? Check out these global locations and find out what it feels like to Ride BMC!

RAD seatpost

Completely integrated with a low system weight of 345g – the most radical XC dropper seatpost.

Lightweight Premium Carbon

A full-carbon system with a new super light carbon upper link.

BWC Race Geometry

A radical approach to XC geometry, tailored to a fast and progressive riding style.

Integrated fork stopper

Smart engineering for optimized cable routing and frame protection.

1 x Specific Frame Construction

Designed for ultimate stiffness and improved tire clearance.

Integrated protection

Molded protections and dedicated mud guards for increased durability.

IP cable routing

End to end guided cable routing for hassle-free installation and reduced maintenance.

APS Suspension

Unparalleled pedaling efficiency and bump compliance in all conditions

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