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Fly Sierra Bmx Bike Dark Red
BIKES
SIGNATURE BIKES Fly Sierra Bmx Bike Dark Red
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The Sierra bike is designed to be our fast and flowy bowl and Trails machine, just the way Sergio and Dovey like it! Following Sergio and our team riders’ preferences, this amazing bike is built from the original Sergio Layos signature Sierra frame, Bars, and Seat. In addition to this, this bike comes with the full Volcano steering line: Volcano 25 stem, Volcano Headset, and Volcano 33 forks, along with the Dolmen 175mm Cranks, Tractor Chain, and 29 tooth Tractor TT CNC sprocket, for those of you guys who like to go fast!
The Sierra bike is also stacked with full Ruben Alcantara signature tires, grips, pedals and more making it a top of the line bike straight out of the box.

SPECIFICATIONS

Fly Sierra Bmx Bike Dark Red Specs
  • Geometry:
  • TOP TUBE LENGTH
    20.6 / 21”
  • CHAIN STAY LENGTH
    13.6”
  • HEAD TUBE ANGLE
    74.5º
  • SEAT TUBE ANGLE
    71º
  • BB HEIGHT
    11.5”
  • STAND OVER HEIGHT
    9.25”
  • FORK OFFSET
    33 mm.
  • BAR RISE
    8.5 / 9"
  • BAR WIDTH
    29”
  • BAR BACKSWEEP
    10º
  • BAR UPSWEEP
  • _
  • Specifications:
  • Frame
    Sierra / Full 4130 CrMo / Heat treated HS, BB / Invest Casting Heat Treated Dropouts / EBS brake system
  • Fork
    Volcano 33 / Full 4130 CrMo / 1 Piece Steerer Tube CNC / Invest Casting Heat Treated dropouts
  • Bars
    Sierra / Full 4130 CrMo / Multiple Butted
  • Grips
    Fly Ruben 2 / 160 mm Long
  • Stem
    Fly Volcano 25mm Rise / 50mm Reach / CNC Machined / 6061-T6 Aluminum
  • Headset
    Volcano 15 / Sealed Bearing / CNC Machined / 6061-T6 Aluminum
  • Lever
    None
  • Brake
    None
  • Cranks
    Dolmen 175 mm. / 4130 CrMo / 2.5p Construction / 1p Invest Casting Arm
  • Bottom Bracket
    Rotar Mid 22mm. / Sealed Bearing
  • Sprocket
    Fly Tractor TT / CNC Machined / 7075-T6 Aluminum / 29T
  • Pedals
    Fly Ruben Graphite / Nylon - Fiberglass Compound
  • Chain
    Tractor / 4130 CrMo Heat Treated / Hollow Pins Chromium Treatment / 74 Links
  • Rims
    Fly Piramide / Double Wall / 6061-T6 Aluminum
  • Front Hub
    Trebol / Sealed Bearing / 3/8” Female Axle / 36H
  • Rear Hub
    Trebol / Sealed Bearing / 14mm Female Axle / 36H / 9T
  • Tires
    Fly Ruben Ligera 2.40 Front / Fly Ruben 2.25 Rear / 60 TPI / 120 PSI
  • Seat
    Fly Sierra 3 Seat / 100% Synthetic Leather / 7 mm Thickness
  • Post
    Fly Tripod / CNC Machined / 6061-T6 Aluminum / 135 mm Long
  • Weight 21" / 9" version
    11.4 kg. / 25.1 lb.
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