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Fourstroke

FOUR

Shimano SLX Drivetrain
RockShox SID SL RL Fork / RockShox SIDLuxe Select+ Shock
SHL28OS Wheels, 25mm Inner Width
As low as €4,299.00
Other CurrenciesEURO €4299
CHF 4699
USD $4699
CAD C$6599
AUD A$
SCEuro €4599

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Fourstroke is the cornerstone Cross-Country bike designed to excel on every level. Offering beyond-the-tape versatility, this XC machine is setting a new standard with unrivalled 100mm APS dual-link suspension travel. The redefined Big Wheel Concept geometry improves performance in a lightweight full-carbon frame with integrated protection and two water bottle cages for long-distance rides. The Fourstroke FOUR arrives with a Shimano SLX drivetrain, RockShox SID SL RL fork and RockShox SIDLuxe Select+ shock, SHL28OS wheels with 25mm inner width and the BMC MSP03 seatpost.

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Fourstroke is the cornerstone Cross-Country bike designed to excel on every level. Offering beyond-the-tape versatility, this XC machine is setting a new standard with unrivalled 100mm APS dual-link suspension travel. The redefined Big Wheel Concept geometry improves performance in a lightweight full-carbon frame with integrated protection and two water bottle cages for long-distance rides. The Fourstroke FOUR arrives with a Shimano SLX drivetrain, RockShox SID SL RL fork and RockShox SIDLuxe Select+ shock, SHL28OS wheels with 25mm inner width and the BMC MSP03 seatpost.

Innovation
Optimized APS Suspension

More traction equals more speed and that is what we are 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 allows you to pedal efficiently, brake hard, and charge rough terrain without compromise.

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Go Long

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

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Redefined Geometry

BWC Race is tailored to a fast and progressive riding 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.

User-Friendly Protection

The internal cable routing on Fourstroke is completely guided through 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.

Technical Overview

  • Frame

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

    Rock Shox SID SL RL - TwistLoc Lockout - TwistLoc Lockout
  • Rear Shock

    Rock Shox SIDLUXE Select+ - TwistLoc Lockout
  • Gears

    1x12
  • Chainwheel

    Shimano Deore, 32T
  • Cassette

    SHIMANO Deore 12 spd 10-51T
  • Chain

    SHIMANO Deore 12 spd
  • Rear Derailleur

    SHIMANO SLX
  • Shifters

    SHIMANO SLX
  • Brakes

    SHIMANO BR-MT500/SM-RT30 Rotors (160/160 S-M, 180/160 L-XL)
  • Handlebar

    BMC MFB02 Alloy 750mm
  • Stem

    MSM01 Stem
  • Seatpost

    BMC MSP03 - 31,6mm - 0mm Offset
  • Saddle

    Fizik Antares R7
  • Hubs

    Shimano MT400 (F) / MT410 (R)
  • Rims

    SHL28OS, 25mm 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 165 170 175 175
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 125 125 150 150
Standover Height mm 725 725 725 725

Frameset

  • Fourstroke Carbon, APS suspension system, 100 mm travel

Technical Details

  • Advanced Pivot Suspension system
  • Big Wheel Concept Race geometry
  • Fully guided internal cable routing, including on below lower link
  • 31.6 mm seatpost
  • Chainstay guard, invisible downtube shield, lower link mud protector
  • Integrated lightweight chainguide
  • Integrated fork 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

Sizes

S, M, L, XL

Frame 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)
  • 31.6 mm seatposts

Brakes

  • Post mount, 160 mm (Max 180 mm)

Wheels and Axles

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

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