Fourstroke 01

LTD

SRAM XX1 Eagle AXS Drivetrain
Fox Float 32 SC Factory Fork / Fox Float DPS Factory Shock
DT Swiss XRC 1200 Wheels
13,499.00CHF
Other CurrenciesEURO €12999
CHF 13499
USD $13499
CAD C$18899
AUD A$
SCEuro €13799
Fourstroke 01 is an XCO performance bike that exceeds the demands of the world’s top racers. On a mission to set the pace with our unique Autodrop technology and unrivalled APS dual-link suspension with 100mm of front and rear travel, it bests the competition in a Premium Carbon frame. This revolutionized racing machine arrives with integrated protection and is designed around the progressive BWC geometry, now accommodating two water bottles in the front triangle for long-distance missions. Fourstroke 01 LTD is your all-new secret weapon and arrives with a SRAM XX1 Eagle AXS drivetrain, Fox Float 32 SC Factory fork and Fox Float DPS Factory shock, DT Swiss XRC 1200 wheels and the BMC Autodrop integrated dropper seatpost.

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Fourstroke 01 is an XCO performance bike that exceeds the demands of the world’s top racers. On a mission to set the pace with our unique Autodrop technology and unrivalled APS dual-link suspension with 100mm of front and rear travel, it bests the competition in a Premium Carbon frame. This revolutionized racing machine arrives with integrated protection and is designed around the progressive BWC geometry, now accommodating two water bottles in the front triangle for long-distance missions. Fourstroke 01 LTD is your all-new secret weapon and arrives with a SRAM XX1 Eagle AXS drivetrain, Fox Float 32 SC Factory fork and Fox Float DPS Factory shock, DT Swiss XRC 1200 wheels and the BMC Autodrop integrated dropper seatpost.

Innovation
Autodrop Technology

Your all-new secret weapon provides the first ever fully integrated, automatic dropper post for on-the-fly and squat-free seatpost dropping to push further faster, even on the most technical XC courses. With an intuitive two-position adjustment our lightweight Autodrop technology gives every rider the race-defining split-second advantage.

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Optimized APS Suspension

More traction equals more speed and that is what we’re after. Next-level kinematics tuning, and best-in-class suspension performance delivers full traction, great efficiency, and active suspension on every terrain. Resulting in faster times, this new and improved full-feature suspension system finds no match on the race-course.

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Go Long

This medal-winning marathon machine is versatile by design. Allowing you to go far, the Fourstroke 01 has been optimized to fit two water bottles and offers a tire clearance of 62mm to fit modern 2.4” XC tires.

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Redefined Geometry

BWC Race is tailored to a fast and progressive racing style designed to attack the steepest and loosest courses with the improved 66.5˚ head angle and a long front-end. The 429mm short chainstays deliver power with proven traction on the most technical sections. The lowered bottom bracket and a steep 76.7˚ seat angle provide perfect weight distribution and handling.

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Design Boost

Put the hammer down! The redesigned chassis excels in torsional and pedalling stiffness for unparalleled power delivery. A true performance leap that boosts one of the most successful XC race bikes on the scene to a new level.

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User-Friendly Protection

The internal cable routing on Fourstroke 01 is guided through the front triangle, lower link and rear triangle, making service intervals a breeze. An integrated fork stopper, chainstay protector and the lower link mud flap protect the frame for improved durability with a custom port on the seat tube providing easy Autodrop maintenance access.

Technical Overview

  • Frame

    Fourstroke 01 Premium Carbon with Autodrop Technology • APS Suspension System, 100mm Travel • Fully Guided Internal Cable Routing • PF92 Bottom Bracket • Post Mount Disc • 12x148mm Boost Thru-Axle
  • Fork

    Fox Float 32 SC Factory, Kashima Coating - DT Swiss Remote Lockout
  • Rear Shock

    Fox Float DPS Factory, Kashima Coating - DT Swiss Remote Lockout
  • Gears

    1x12
  • Chainwheel

    SRAM X01 Eagle Carbon 34T
  • Cassette

    SRAM XX1 XG-1299 Eagle 10-52T
  • Chain

    SRAM XX1 Eagle
  • Rear Derailleur

    SRAM XX1 AXS Eagle
  • Shifters

    SRAM AXS Controller
  • Brakes

    SRAM Level Ultimate / SRAM Centerline Rotors (160/160 S-M, 180/160 L-XL)
  • Handlebar

    BMC MFB01 Carbon 760mm
  • Stem

    BMC MSM01
  • Seatpost

    BMC Autodrop Integrated Dropper Seatpost • 80mm Drop
  • Saddle

    Prologo Dimension NDR T4.0
  • Hubs

    DT Swiss 180 Straightpull, Ratchet EXP 36
  • Rims

    DT Swiss XRC 1200 Wheelset, 30mm Inner Width
  • Tires

    Vittoria Mezcal 2.35"
  • Tire Clearance

    62mm (Measured Width)
  • Weight Limit

    110 Kg
  • ASTM Classification

    Level 3
Size S M L XL
Rider Height CM <172 172-182 180-188 >188
Stack MM 584 592 600 615
Reach MM (reach) 437 457 477 500
Seat Tube MM (st) 420 440 470 510
Top Tube MM (tt) 574 597 621.2 649.23
Head Tube MM (ht) 83.84 93.5 101.25 117.58
Seat Tube Angle (sa) 76.7 76.7 76.7 76.7
Head Angle (ha) 66.5 66.5 66.5 66.5
Rear Center MM (rc) 432 432 432 432
Wheelbase MM (wb) 1139 1171 1188 1218
BB Drop MM (drop) 53 53 53 53
Fork Length MM (fl) 513 513 513 513
Fork Rake MM (fr) 44 44 44 44
Trail MM (trail) 113 113 113 113
Crank Length MM 165 170 170 175
Stem Length MM 50 60 60 70
Stem Angle -5 -5 -5 -5
Bar Width MM 760 760 760 760
Bar Rise MM 4 4 4 4
Backsweep 8 8 8 8
Seatpost Drop MM 80 80 80 80
Standover Height mm 725 725 725 725

Frameset

  • Fourstroke 01 Premium Carbon with Autodrop dropper seatpost, APS suspension system, 100 mm travel

Fourstroke 01 features Autodrop, an automatic dropper seatpost exclusive to Fourstroke 01 (from MY23).*

Technical Details

  • Autodrop seatpost, 80 mm drop
  • Advanced Pivot Suspension system
  • Big Wheel Concept Race geometry
  • Fully guided internal cable routing, including on lower link
  • Chainstay guard, invisible downtube shield, lower link mud protector
  • Integrated lightweight chainguide
  • Integrated fork rotation stopper
  • Metric shock, 190 mm eye to eye length, 45 mm stroke
  • 100 mm fork travel, 44 mm fork offset
  • SRAM UDH Derailleur Hanger (Universal Derailleur Hanger)
  • ASTM level 3

Autodrop Technology

  • Automatic dropper post for XC racing: ultimate integration, featherweight, easy setup and maintenance
  • 80 mm drop
  • 2 positions adjustment
  • 90 mm saddle height adjustment range

Sizes

S, M, L, XL

Frame Weight**

 

Seatpost Weight***

 

Compatibility

Frame, Fork and Seatpost

  • 120 mm max fork travel
  • 1x drivetrain specific
  • PF92 press fit bottom bracket
  • 52 mm boost chainline
  • UDH rear derailleur hanger
  • 2 waterbottle mounts on downtube (medium bottle size, side-entry bottle cage)
  • Autodrop seatpost only

Brakes

  • Post mount, 160 mm (Max 180 mm)

Wheels and Axles

  • 29" x 62 mm tire clearance
  • 12x148 mm boost rear axle

* Notes about proprietary technology

** Weight for the lightest finish, including complete hardware with size M frames

*** Average sample weight (w/out lever)