2021 BMC FOURSTROKE 01 TWO MOUNTAIN BIKE
Every second Matters
Born to surpass the demands of the world's top endurance racers, the Fourstroke utilises 100mm of front and rear travel and sports the revolutionary RAD integrated dropper post, to assemble the most innovative XC race machine.

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 classleading stiffness and lightning-fast sprints. The refined APS (Advanced Pivot System) suspension deliver pedaling efficiency, traction and control on every race course.

Race Application Dropper
The first integrated XC dropper post provides a radical competitive edge by deliver the optimum riding position, uphill and down. It's RAD.

Big Wheel Concept (BWC) Race
A radical approach to XC geometry, tailored to a fast and progressive riding style.

Advanced Pivot System
APS dual-link suspension technology allows you to pedal efficiently, brake hard, and charge rough terrain without compromise.

Lightweight Premium Carbon
The Fourstroke 01 features a full-carbon frame with a new, super-light carbon upper link. The premium carbon upper link that saves weight and provides a robust connection between the front and rear triangles.

Integrated Fork Stopper
Engineered 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.

Integrated Protection
Molded plastic covers on chainstay and lower link ensure durability and a clean look.

SPECIFICATION :
Frame
Fourstroke 01 Premium Carbon with 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, Performance Elite, FIT4, Remote, 100mm
Rear Shock
Fox Float DPS - Performance Elite, Evol, Remote
Gears
1x12
Chainwheel
Shimano Deore XT 34T
Cassette
Shimano Deore XT 10-51T
Chain
Shimano Deore XT
Rear Derailleur
Shimano XTR Shadow Plus
Shifters
Shimano Deore XT
Brakes
Shimano Deore XT / Shimano SM-RT86 Rotors (160/160 S-M, 180/160 L-XL)
Handlebar
BMC MFB01 Carbon 760mm
Stem
BMC MSM01
Seatpost
BMC RAD, Integrated Dropper Seatpost • 80mm drop
Saddle
Fizik Antares R7
Hubs
DT Swiss XR 1700
Rims
DT Swiss XR, 1700 25mm
Tires
Vittoria Barzo 2.25
Tire Clearance
58mm
Weight
11.0kg