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.
R100,000.00
Description
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.
Specifications
- 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
- ChainwheelTruvativ Stylo 6K, 34T
- CassetteSRAM GX Eagle, 10-50T
- ChainSRAM GX Eagle
- Front Derailleur-
- Rear DerailleurSRAM GX Eagle
- ShifterSRAM GX Eagle
- BrakesShimano SLX (160/160mm) *
- 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
Geometry
| 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 |
Concept
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.
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 (34.1×25.6mm
- 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
