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fourstroke FS01 29 XC

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Our fourstroke has always been a race bike, built with potential to be a lot more. 29 inch wheels make this latest iteration more capable than ever before.

 

Racers looking for efficiency and responsiveness will not be disappointed, and it is also the perfect tool for all day mountain bikers riding challenging terrain. Uphill or downhill, the fourstroke simply got faster.

Specifications

  • Frame Frame: APS (Rear Travel 100mm)
  • Tubing Tubing: Carbon
  • Size Size: S / M / L
  • Fork Fork: Fox 32 Float CTD FIT Performance 100mm
  • Rear Shock Rear Shock: Float CTD BV Factory Kashima
  • Gears Gears: 2 x 10
  • Chainwheel Chainwheel: Sram XO 24-38
  • Cassette Cassette: Sram XO 11-36
  • Chain Chain:  
  • Front Derailleur Front Derailleur: Sram XO
  • Rear Derailleur Rear Derailleur: Sram XO Type2
  • Shifter Shifter: Sram XO MMX
  • Brakes Brakes: Sram XO Carbon180mm
  • Handlebar Handlebar: Easton EC70 XC Flat
  • Stem Stem: Easton EA90
  • Seatpost Seatpost: Easton EC70 Zero
  • Seat Seat: Tundra 2 Manganese
  • Hubs Hubs: Easton EA70 XCT 29"
  • Rims Rims: Easton EA70 XCT 29"
  • Tyres Tyres: Onza Canis ERA 2.25
  • Colour Colour: Team Red
  • Weight Weight: 10.85 kg

Geometry

size S M L
rider height cm 165 - 174 170 - 182 180 - 195
stack mm 585 595 605
reach mm 412 434 456
seat tube st mm 420 460 510
top tube tt‘ mm 585 610 635
head tube ht mm 90 100 110
seat angle sa ° 73.5 73.5 73.5
head angle ha ° 70 70 70
rear center rc mm 445 445 445
bb drop mm 40 40 40

Concept

Fast
The geometry is built around the BWC (Big Wheel Concept). A longer top tube and slacker head angle, in combination with wide handlebars, make the handling stable and comfortable. Short chain stays, low bottom bracket and a short stem complete the concept by keeping the bike lively.

Efficient
A race bike must be light, and with a complete frame weight at 2kg, the fourstroke FS01 fears no competition. Our APS (Advanced Pivot System) suspension, specially refined for big wheels in conjunction with the BWC, provides the perfect balance of comfort, control and efficiency.

Capable
The combination of big wheels, stable geometry and APS suspension makes the bike capable of overcoming any obstacle. High torsional stiffness improves steering precision and boosts confidence.
1) Frameset
-APS suspension, 100mm travel
-BWC 29er geometry
-12x142mm rear axle
-Frame weight (FS01): 2070 gr including all hardware
-Hardware includes: Rear shock, chain guide, bolts, seat clamp, and rear wheel axle.
-Shock dimensions: 200x50mm

2) Bottom bracket – BB90 Shimano pressfit

3) Integrated chainguide and chain catcher – Refer to specific manual

4) Initial load indicator – Convenient SAG adjustment

5) Tapered Headset – 1-1/8” to 1-1/2”

6) Natural born post mount
-Designed for 160mm discs
-Maximum 185mm rotors
-Replaceable threaded inserts

7) Cable routing
-Continuous cable routing along the down tube
-Internal cable routing for reverb stealth or shock lockout

Reviews

  • fourstroke FS01

    fourstroke FS01

    What Mountainbike

    England

    December 2012

    Download PDF

  • fourstroke FS01 29

    fourstroke FS01 29

    bike

    Deutschland

    Oktober 2012

    Download PDF

  • fourstroke FS01 29

    fourstroke FS01 29

    MountainBIKE

    Deutschland

    Oktober 2012

    Download PDF

  • fourstroke FS01

    fourstroke FS01

    Bike Magazine

    Françe

    Septembre 2012

    Download PDF

  • fourstroke FS01 29

    fourstroke FS01 29

    Vélo Vert

    Françe

    Août 2012

    Download PDF

technology

APS

advanced pivot system

Unsurpassed power transmission, traction control, and comfort.

The ideal suspension system converts all of a rider's energy into forward propulsion, while at the same time absorbing impacts. Mechanically, these two goals are at odds with one another. But BMC's APS rear suspension satisfies these two goals by carefully calculating the pivot points of the rear suspension so that inertial force generated under acceleration is not misdirected into compressing the shock.

How is this accomplished? With APS the virtual pivot point is positioned so that constant chain tension is maintained for forward acceleration. As such, pedaling forces are used for forward propulsion with no loss of energy transfer in the suspension system. At the same time, the shock system ensures optimum rear wheel traction, guaranteeing that those pedaling forces are not only getting to the rear wheel, but to the ground, as well. The end result is a suspension system that provides extreme power transfer efficiency, uncanny traction, and excellent comfort.

 

 

System integration

natural born postmount

Brake mount is directly bolted to the rear triangle.

Direct assembly of the brake caliper to the frame with no need for an adapter means improved braking power transfer, especially under demanding conditions.

initial load indicator

Remarkably simple sag adjustment.

Just set the sag adjustment according to the indicator, and go. Trailside adjustments have never been simpler.

Catalog 2014

team clothing

Order online now: Jersey Set of the BMC Racing Team is available for order now from our website.