20" Legion L20

Smoother shifting, more powerful brakes, better suspension fork performance. The Avalanche Expert is equipped with the most capable components within the lineup, feeding you the confidence to progress your singletrack skills on climbs, descents and all the straightaways you can handle.


Currently taking pre-orders for late summer through winter delivery. Call the store for the latest information on models, sizes, dates and availability. Due to Covid-related stresses on the supply chain, all bike brands are experiencing delays of up to 12 months for popular models. Those with pre-orders in place will get priority allocations when limited stock arrives. 03 9557 6461


Durable Hi-Ten steel frame. Great for riders 4’8” to 5’. Available in two colours. Make no mistake, the Legion L20 is a BMX-style bike with a great-looking design.



-Durable Hi-Ten steel frame.

-Drivetrain features 170 mm three-piece forged steel cranks with a 25T steel chainring and American loose ball bottom bracket.

-20” x 2.3” tires mounted on aluminium single wall 36H rims with 3/8” in axle front hub and 9T cog ball bearing cassette rear hub.

-Hi-Ten steel handlebar and fork, 50 mm stem, standard 1-1/8” headset, and aluminium U-brake and brake levers.

-20.25” top tube length. Suggested rider height is 4’8” – 5’4”.

The Urban Pedaler Promise
Each bike purchased with us includes:


  • Professionally built and inspected by an experienced bicycle technician
  • Free minor adjustments for 30 days from purchase
  • Free first tuneup between 3 and 6 months from purchase – valued at $149 – does not include parts
  • Lifetime Warranty on bike frames and Limited Warranty on complete bikes, subject to brand-specific inclusions

Frame Hi-Ten Steel, BMX Freestyle Geometry, mid BB shell

Fork Hi-Ten steel steerer add fork



Crank 3-piece, tubular chromoly, 25T steel chainring

Chain KMC S1

Bottom Bracket Mid sealed bearing, 8-spline spindle

Cassette Single-speed, 9T cassette driver



Rims Aluminium single wall, 24mm ID, 36H

Front Hub Steel, ball bearing, 3/8 in axle, 36H.

Rear Hub Steel, sealed-bearing cassette, 14mm axle, 36H

Spokes 14G, stainless steel, Black

Tires 20" x 2.30", Wire bead


BRAKES U-brake, Aluminium



Handlebar Hi-Ten steel, 28” width, 8” rise

Pedals Mongoose, nylon

Stem Mongoose, threadless top load, 50mm

Headset Threadless, integrated 1-1/8", cartridge bearing

Seat Post Pivotal, Steel, 250mm, 25.4mm

Saddle Mongoose Unifier

Grips Mongoose Mush XL, 160mm

Limited availability, call for up to date info

These will begin arriving in some sizes asap and are expecting to be filled out through the season. Call store for the latest information on dates and availability. Due to factory shortages, most bike brands are experiencing delays. Those with pre-orders in place will get priority allocations when limited stock arrives. 03 9557 6461