The Fly Bikes Sierra showcases a lightweight kids BMX bike with a striking 18" red frame elegantly displayed against a crisp white background.
The Fly Bikes Sierra 18 Inch BMX frame features a black design with "Sierra" branding on the top tube, ideal for young adventurers. It is showcased against a white background.
The Fly Bikes Sierra 18" Frame, sporting "Sierra" branding on a dark background, boasts a sleek design. With a "Lifetime Warranty" label at the top right, it offers assurance in this premium build inspired by Sergio Layos' signature style.
Fly Bikes Sierra 18" frame displays graphic designs on a dark background and includes a "Lifetime Warranty" badge at the top right.
Close-up of a matte black Fly Bikes Sierra 18" BMX frame with branding details, showcasing the Sergio Layos signature design against a dark background.
The Fly Bikes Sierra 18 Inch Frame, with its eye-catching black and white decals, contrasts sharply with the dark background, showcasing a sleek design reminiscent of Sergio Layos's bold signature red bicycle frame.
Close-up of black bicycle dropouts with a sleek, modern design against a dark background, showcasing the Fly Bikes Sierra 18 Inch BMX frame.
Diagram of the Fly Bikes Sierra 18 Inch Frame: top tube 18.7", seat tube 8", head tube 4", seat tube angle 71°, head tube angle 75°, base lengths of 12.2" and 10.5". Sergio Layos signature design.

Description

The Sierra 18" is an exact replication of Sergio Layos' signature frame, same design and same specs, adapted to fit riders roughly 7 to 12 years old. An 18.7" top tube, a 12.2" slammed rear end, 8" standover and a 10.5" bottom bracket height keep it in proportion, and there is a wide range of supported parts to build it into a complete top range 18" machine.

Tubing is 4130 chromoly, Japanese Sanko triple butted, with a CNC machined heat treated head tube and bottom bracket. The dropouts, seat clamp and seatstay bridge are investment cast 4130 chromoly, heat treated. Brake mounts are EBS style on the chainstays, head tube angle is 75° and seat tube 71°, the bottom bracket is Spanish and the frame weighs 1.967 kg.

Features
  • The Sierra, sized for kids. An exact replication of Sergio Layos' 20" signature frame, same design and specs, adapted to fit 7 to 12 year old riders.
  • Light at 1.967 kg. Under two kilos, so a smaller rider is not fighting the weight of the frame underneath them.
  • 18.7" top tube, 8" standover. A 12.2" slammed rear end and a 10.5" bottom bracket height keep the proportions right around an 18" wheel.
  • Modern frame technology throughout. Japanese Sanko triple butted 4130 chromoly with investment cast dropouts, seat clamp and seatstay bridge, all heat treated.
  • Wide 18" parts support. Plenty of supported parts are available to build a complete top range 18" bike. EBS chainstay brake mounts, brake kit not included.

Specifications
  • Sizes: 18.7" top tube
  • Chainstay: 12.2" slammed
  • Head tube angle: 75°
  • Seat tube angle: 71°
  • Standover: 8"
  • Bottom bracket height: 10.5"
  • Bottom bracket: Spanish, CNC machined 4130 chromoly, heat treated
  • Material: 4130 chromoly
  • Tubing: Japanese Sanko triple butted
  • Dropouts: Investment cast 4130 chromoly, heat treated
  • Brake mounts: EBS style, chainstay. Brake kit not included
  • Head tube: 4"
  • Seat clamp: Investment cast 4130 chromoly, heat treated
  • Wheel size: 18"
  • Weight: 1.967 kg / 4.3 lb
  • Note: Lifetime warranty. Replacement stickers included. 20 inch variant pictured

Fly Bikes Sierra 18 Inch Frame

Brand: Fly Bikes SKU:

$649.99 AUD

Or 4 payments of $162.49 AUD with

Colour - Flat Black

Top Tube Length - 18.7

$649.99 AUD

Price match request

Fly Bikes Sierra 18 Inch Frame - Flat Black / 18.7

$12.99 flat-rate shipping Australia-wide

Express from $21.99

Free in-store pickup - Brisbane

Availability

18.7
Gloss Dark Red
Flat Black

● In stock at LUXBMX ● With supplier ● Preorder ○ Sold out

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