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Motosierra Bike
Bikes
Signature Custom Bikes Motosierra Bike
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Save 25% / up to $467€ from individual parts purchase.

We've brought together all our trail team riders' preferences to build the sickest trail BMX out there. This Bicycle-Moto-X trail machine is made from Sergio Layos' signature Motosierra frame, Sierra bar, the Volcano steering line, Fly CNC Brake, and fully loaded with Ruben's top-notch parts. And guess what? We've even thrown in the badass Magneto Hubs laced with Lunar Rims option. Now we can ensure that it is the best Fly bike that we can build.

Signature bikes are fully customizable. Select the options that best suit your preferences, and if something else catches your eye:
1. Choose the options that align with your preferences and simply mention the desired change in the comments section during checkout.
2. The option will be applied if it´s available at the time of purchase.
3. If the chosen part has a higher price, the upcharge will be the price difference with a 25% discount. You’ll receive a payment link by email. No refunds for products with lower price.

• Secure payment
• Easy Assembly
• 100% plastic-free recyclable packaging
Note: The chain tensioner is not compatible with more than 24mm diameter hubs, like Trebol Cassette.

SPECIFICATIONS

Motosierra Bike Specs
  • Geometry:
  • TOP TUBE LENGTH
    21 / 21.4” / 21.8”
  • CHAIN STAY LENGTH
    14”
  • HEAD TUBE ANGLE
    74º
  • 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
    Motosierra / Full 4130 CrMo / Heat treated HS, BB / Invest Casting Heat Treated Dropouts
  • Fork
    Volcano 33 / Full 4130 CrMo / 1 Piece Steerer Tube CNC / Invest Casting Heat Treated dropouts
  • Bars
    Sierra / Full 4130 CrMo / Multiple Butted
  • Grips
    Ruben 2 / 160 mm Long
  • Stem
    Volcano 25L / 57mm Reach / CNC Machined / 6061-T6 Aluminum
  • Headset
    Volcano 7 / Sealed Bearing / CNC Machined / 6061-T6 Aluminum
  • Lever
    Manual / CNC / 6061 T-6 Aluminum
  • Brake
    Manual OG / CNC / 6061 T-6 Aluminum
  • Cranks
    Dolmen 175 mm. / 4130 CrMo / 2.5p Construction / 1p Invest Casting Arm
  • Bottom Bracket
    Rotar Mid 22mm. / Sealed Bearing
  • Sprocket
    Tractor TT / CNC Machined / 7075-T6 Aluminum / 30T
  • Pedals
    Ruben Graphite / Nylon - Fiberglass Compound
  • Chain
    Tractor / 4130 CrMo Heat Treated / Hollow Pins Chromium Treatment / 74 Links
  • Tires
    Ruben Ligera 2.40 Front / Fly Ruben 2.25 Rear / 60 TPI / 120 PSI
  • Seat
    Motosierra Seat / 100% Synthetic Leather / 7 mm Thickness
  • Post
    Motosierra Rail Post / CNC Machined / 6061-T6 Aluminum / 150 mm Long
  • -
  • TREBOL-PIRAMIDE WHEELS OPTION
  • Rims
    Piramide / Double Wall / 6061-T6 Aluminum
  • Front Hub
    Trebol / Sealed Bearing / 3/8” Female Axle / 36H
  • Rear Hub
    Trebol / Sealed Bearing / 3/8” Female Axle / 36H / 9T
  • Weight 21" / 9" version
    11.45 kg. / 25.2 lb.
  • -
  • MAGNETO-LUNAR WHEELS OPTION
  • Rims
    Lunar Rear / Lunar Lite Front / Double Wall / 6061-T6 Aluminum / Flash Welded
  • Front Hub
    Magneto / Sealed Bearing / 3/8” Alu Female Axle / 36H
  • Rear Hub
    Magneto / Sealed Bearing / 3/8” Alu Female Axle / 36H / 9T
  • Weight 21" / 9" version
    11.45 kg. / 25.2 lb.

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