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Fly Bikes Proton BMX Bike (Gloss Black / 21" / Cassette)

Regular Price
$691.00
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$691.00
Regular Price
$797.00
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Fly Bikes Proton BMX Bike (Gloss Black / Cassette)

The Proton model is the mid-range BMX Bike that performs perfectly on streets but also on ramps. A resistant bike suitable for any purpose a rider could have.

  • 100% CrMo Frame, Fork & Bars
  • Front & rear sealed Hubs.
  • Pegs and Hub Guards included.
  • 3 Piece CrMo Crankset.
  • Removable brake mounts.
  • The option without brakes does not include any brake hardware.

GEOMETRY

  • TOP TUBE LENGTH: 21”
  • CHAIN STAY LENGTH: 13.2”
  • HEAD TUBE ANGLE: 75º
  • SEAT TUBE ANGLE: 71º
  • BB HEIGHT: 11.75”
  • STAND OVER HEIGHT: 9”
  • FORK OFFSET: 27mm.
  • BAR RISE: 9”
  • BAR WIDTH: 29”
  • BAR BACKSWEEP: 10º
  • BAR UPSWEEP: 2º

SPECS

  • Frame: Full 4130 CrMo / Removable Brake Mounts
  • Fork: Integrated cone shape design / Full 4130 CrMo / 1 Piece Steer Tube
  • Bars: Full 4130 CrMo
  • Grips: Fly Devon / 160 mm Long
  • Stem: Trebol Top Load / Forged / 6061-T6 Aluminum / 50mm
  • Headset: Internal Sealed Bearing
  • Lever: Generic Inged / Forged / 6061 T-6 Aluminum
  • Brake: Trebol Springhanger / Forged / 6061 T-6 Aluminum
  • Cranks: Trebol 3Pc / 4130 CrMo / 170 mm Arm Length
  • Bottom Bracket: Mid / Sealed Bearing
  • Sprocket: Trebol / CNC Machined / 6061-T6 Aluminum / 25T
  • Pedals: Fly Ruben Graphite / Nylon - Fiberglass Compound
  • Chain: 510 Type / 69 Links
  • Rims: Trebol / Semi-double Walled / 6061-T6 Aluminum / 36H
  • Front Hub: Trebol Male / Sealed Bearing / 10mm Male Axle / 36H
  • Rear Hub: Trebol Male Cassette / Sealed Bearing / 14mm Male Axle / 36H / 9T
  • Tires: Fly Fuego 2.30" Front & Rear / 60 TPI / 120 PSI
  • Seat: Fly Proton Tripod / 100% Synthetic Leather / 25 mm Thickness
  • Post: Trebol Tripod / Forged & CNC Machined / 6061-T6 Aluminum / 135 mm
  • Pegs: Trebol HS Steel 1 Pair
  • Weight (brakeless): 11.9 Kg. / 26.2 lb.

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