Fourstroke 01

LT | TWO

SRAM GX Eagle Drivetrain
Fox Float 34 SC Performance Fork, Fox Float DPS Performance Shock
DT Swiss X 1900 Wheelset
6,999.00CHF
Other CurrenciesEURO €6499
CHF 6999
USD $6999
CAD C$9799
AUD A$
SCEuro €6899
Designed for riders who want even more Fourstroke performance from the LT’s 120mm of APS dual-link suspension travel. The Premium Carbon frame includes the revolutionary RAD integrated dropper post, plus integrated fork stopper and frame protection. Hit the trails with confidence on the bike that knows no limits. The new Fox Float 34 SC Performance fork and equivalent shock combine with an alloy bar, SRAM GX and X1 Eagle groupset, and DT Swiss X1900 wheelset plus 2.4” Maxxis Rekon tires.

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Designed for riders who want even more Fourstroke performance from the LT’s 120mm of APS dual-link suspension travel. The Premium Carbon frame includes the revolutionary RAD integrated dropper post, plus integrated fork stopper and frame protection. Hit the trails with confidence on the bike that knows no limits. The new Fox Float 34 SC Performance fork and equivalent shock combine with an alloy bar, SRAM GX and X1 Eagle groupset, and DT Swiss X1900 wheelset plus 2.4” Maxxis Rekon tires.

Innovation
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.

Advanced Pivot System (APS)

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

Lightweight Premium Carbon

The Fourstroke 01 LT 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.

Big Wheel Concept (BWC) Race

A radical approach to XC geometry, tailored to a fast and progressive riding style.

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 finish.

120 mm Travel

Built for even more fun in the downhill, the Fourstroke 01 LT features 120 millimeters of travel.

Technical Overview

  • Frame

    Fourstroke 01 Premium Carbon with APS Suspension SyStem, 120mm Travel
    • Fully Guided Internal Cable Routing
    • PF92 Bottom Bracket
    • Post Mount Disc
    • 12x148mm Boost Thru-Axle
  • Fork

    NEW Fox Float 34 SC Performance
  • Rear Shock

    Fox Float DPS Performance
  • Chainwheel

    SRAM X1 Eagle Carbon 34T
  • Cassette

    SRAM GX Eagle 10-52T
  • Chain

    SRAM GX Eagle
  • Rear Derailleur

    SRAM GX Eagle
  • Shifters

    SRAM GX Eagle
  • Brakes

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

    BMC MFB02 Alloy 750mm
  • Stem

    BMC MSM01
  • Seatpost

    BMC RAD, Integrated Dropper Seatpost
    • 80mm Drop
  • Saddle

    Fizik Antares R7
  • Hubs

    DT Swiss 370 Disc
  • Rims

    DT Swiss X 1900 Wheelset, 30mm Inner Width
  • Tires

    Maxxis Rekon 2.4" WT, TR, EXO
  • Tire Clearance

    58mm (Measured Width)
  • Weight Limit

    120kg / 264lb
  • ASTM Classification

    Level 3

Fourstroke 01 LT TWO Cross Country Mountain Bike

Size S M L XL
Rider Height CM <172 172-182 180-188 >188
Stack MM 586 596 606 622
Reach MM (reach) 415 440 456 476
Seat Tube MM (st) 420 440 480 510
Top Tube MM (tt) 582 607 630 654
Head Tube MM (ht) 96 107 117 134
Seat Tube Angle (sa) 74.8 74.8 74.8 74.8
Head Angle (ha) 66.5 66.5 66.5 66.5
Rear Center MM (rc) 429 429 429 429
Front Center MM (fc) 700 726 750 777
Wheelbase MM (wb) 1129 1155 1180 1206
BB Drop MM (drop) 35 35 35 35
Fork Length MM (fl) 526 526 526 526
Fork Rake MM (fr) 44 44 44 44
Trail MM (trail) 112.5 112.5 112.5 112.5
Crank Length MM 170 175 175 175
Stem Length MM 50 50 60 60
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 742 751 763 772

Frameset

  • Fourstroke 01 LT premium carbon with APS suspension system, 120 mm travel

Fourstroke 01 LT features Race Application Dropper seatpost, the world's first and lightest integrated dropper post. The RAD seatpost is specific to Fourstroke 01 frames starting from MY19.*


Technical Details

  • Advanced Pivot Suspension system
  • Race Application Dropper (RAD) seatpost, 80 mm drop
  • Big Wheel Concept Race geometry
  • Fully guided internal cable routing, including on lower link (hidden link)
  • Molded chainstay guard, chain suck protection plate, invisible downtube shield, lower link mud protector
  • Integrated lightweight chainguide
  • Integrated fork stopper with cable guiding and frame protection functions
  • Metric shock, 185 mm eye to eye length, 55 mm stroke, trunnion mount, 20x8 mm hardware
  • 120 mm fork travel, 44 mm fork offset
  • ASTM level 4

Race Application Dropper (RAD), Integrated Dropper Seatpost

  • The first integrated 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**
2270 g

Seatpost Weight***
345 g


Compatibility

Frame, Fork and Seatpost

  • 100−120 mm fork travel
  • 1x drivetrain specific
  • PF92 press fit bottom bracket
  • 52 mm boost chainline
  • Replaceable standard or direct mount rear derailleur hangers
  • 1 waterbottle mount
  • RAD dropper seatpost only

Brakes

  • Post mount, 160 mm

Wheels and Axles

  • 29" x 58 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)