The Colony Apprentice Flatland 20 Inch Bike is shown in profile, featuring a white frame with black handlebars, seat, tires, and BMX bike pegs against a plain white background.
Colony Apprentice Flatland Complete Bike / Gloss Black / 18.9TT
Close-up of the Colony Apprentice Flatland 20 Inch Bike’s black front wheel with thick tire, metal pegs, fork, and spokes on a white background—ideal for flatland BMX riders seeking a pro-level 20" bike.
Close-up of the Colony Apprentice Flatland 20 Inch Bike's black front wheel, showing the tire tread, fork, and caliper brake against a white background—a detailed view of this BMX flatland bike.
Close-up of a bicycle pedal attached to a black crank arm, with part of the rear wheel and tire visible—perfect for riders of the Colony Apprentice Flatland 20 Inch Bike, featuring an agile frame built for flatland BMX tricks.
Close-up of a Colony Apprentice Flatland 20 Inch Bike front wheel, featuring black spokes and a metal peg on the axle—ideal for flatland tricks and perfect for BMX riders.
Close-up of a Colony Apprentice Flatland 20 Inch Bike rear wheel, showcasing black spokes, chain, hub, and metal peg on the axle—ideal features for mastering flatland BMX tricks.
Close-up of the black rear tire, textured tread, spokes, pedal, and 18.9" frame of the Colony Apprentice Flatland 20 Inch Bike against a white background, highlighting its flatland BMX design.
Close-up of the front section of the Colony Apprentice Flatland 20 Inch Bike in black, showing "APPRENTICE" on the top tube. This flatland BMX features an 18.9" frame for precision and style.
Close-up of black flatland BMX handlebars with brake cables, brake lever, and "APPRENTICE" branding on the crossbar, featured on the Colony Apprentice Flatland 20 Inch Bike with an 18.9" frame.

Highlights

  • Built for flatland riding
  • Four alloy pegs fitted
  • Front and rear brakes with a gyro
  • Freecoaster rear hub

Description

Bust out some hitch hikers down the main drag on this sturdy flatland rig from our mates over at Colony BMX! An 18.9" frame is the perfect all rounder packed with 4 pegs, front and rear brakes makes this a complete to be reckoned with! (Recommended for flatland use only!)

Features
  • Built for flatland riding. Colony recommend this one for flatland use only, on an 18.9" frame they call the perfect all rounder.
  • Four alloy pegs fitted. Pegs on all four corners out of the box, so the bike is ready for the main drag as it comes.
  • Front and rear brakes with a gyro. Alloy 990 style brakes at both ends with alloy levers and a detangler, so the bars keep spinning.
  • Freecoaster rear hub. Roll backwards without the cranks turning, on a 36h Colony freecoaster laced to single wall alloy rims with 20 x 1.75" tyres.
  • Short 153mm cranks, 40mm stem. A tight cockpit with 8.9" rise bars 29.5" wide, a zero offset fork and a 6.9" standover, 12.0kg all up.

Specifications
  • Size: 20" wheels, 18.9" top tube
  • Frame: Colony Apprentice, full chromoly, mid BB, integrated headset
  • Top tube: 18.9"
  • Chainstay: 12.4"
  • Head tube angle: 75.0°
  • Seat tube angle: 72°
  • Standover: 6.9" (centre of BB shell to centre of TT)
  • Fork: Colony Apprentice zero offset, tapered legs, chromoly steer tube
  • Headset: Integrated
  • Stem: Colony forged top load alloy, 40mm reach
  • Bars: Colony full chromoly, 8.9" rise x 29.5" wide
  • Grips: Colony Much Room
  • Brakes: Alloy 990 style front and rear, generic detangler, gyro cables rear and Linear Slick front
  • Brake lever: Alloy, front and rear
  • Cranks: Colony chromoly tubular, 8 spline, 19mm spindle, 153mm
  • Bottom bracket: Sealed mid, 19mm
  • Sprocket: Colony Endeavour alloy 25T
  • Chain: KMC
  • Pedals: Colony Fantastic Plastic
  • Front hub: Colony alloy, 10mm axle, loose ball, 36h
  • Rear hub: Colony freecoaster, 36h
  • Spokes: Black
  • Rims: Single wall alloy, 36h
  • Tyres: 20 x 1.75" front and rear
  • Seat: Railed
  • Seat post: Long
  • Pegs: Alloy x 4
  • Weight: 12.0kg
  • Note: Recommended for flatland use only.

Assembly information

Your bike ships mostly assembled in the box. Finishing it takes most people 10 to 20 minutes with basic tools, and the video above walks through every step.

  • Fit the handlebars and line them up with the front wheel
  • Fit the front wheel, pedals and seat post
  • Check the brakes and tyre pressure before the first ride

Tools: Allen key set and a 15mm, 17mm or 19mm spanner for the pedals and axle nuts (bikes can vary between these three sizes). A socket is needed if installing pegs.

Rather have it done? Ask us about extra assembly before you order, or any local bike shop can finish the build for a small fee.

Colony Apprentice Flatland 20 Inch Bike

Brand: Colony SKU:

$999.99 AUD

Or 4 payments of $249.99 AUD with

Recommended Rider Height: 147 cm and taller

Colour - Gloss Black

Top Tube Length - 18.9

20 inch BMX sizing

A 20 inch bike is the standard adult BMX and suits riders from about 147cm up. At this wheel size the top tube is what changes the fit, so pick that by height.

Rider heightWheel sizeTop tube
60 to 91cm12"12 to 12.5"
81 to 106cm14"14 to 14.5"
96 to 122cm16"16 to 16.5"
122 to 147cm18"18 to 18.5"
147 to 157cm20"19.75 to 20.25"
157 to 168cm20"20 to 20.5"
168 to 175cm20"20.25 to 20.75"
175 to 183cm20"20.5 to 21"
183 to 190cm and up20"20.75 to 21.5"
160cm and up22"21 to 22.25"
160cm and up24"21.75 to 22"
160cm and up26"22 to 23"

Sizes overlap on purpose, so personal preference comes into it. If you land in two bands, riding style breaks the tie: longer for flow, trails and transitions, shorter for technical street and park.

How to measure

Stand your rider against a wall in the shoes they ride in, heels flat, and mark the top of their head. Measure from the floor to the mark.

Top tube is measured from the centre of the seat tube to the centre of the head tube, so it is not the same as the length of the tube you can see.

  • A 20 inch bike is the standard adult BMX and most riders end up there, so do not size a tall child down to a smaller wheel.
  • 22, 24 and 26 inch bikes are adult bikes with a bigger wheel, not bigger frames for taller riders.
  • Size up for stability through trails and transitions. Size down if you want the bike quick and twitchy for spins and grinds.
  • Top tube is fixed, but stem length, fork offset and bar position all shift how roomy the bike feels once you are on it.

Not sure? Send us their height and we will tell you what we would put them on.

Read the full buying guide

20 inch BMX sizing

A 20 inch bike is the standard adult BMX and suits riders from about 147cm up. At this wheel size the top tube is what changes the fit, so pick that by height.

Rider heightWheel sizeTop tube
60 to 91cm12"12 to 12.5"
81 to 106cm14"14 to 14.5"
96 to 122cm16"16 to 16.5"
122 to 147cm18"18 to 18.5"
147 to 157cm20"19.75 to 20.25"
157 to 168cm20"20 to 20.5"
168 to 175cm20"20.25 to 20.75"
175 to 183cm20"20.5 to 21"
183 to 190cm and up20"20.75 to 21.5"
160cm and up22"21 to 22.25"
160cm and up24"21.75 to 22"
160cm and up26"22 to 23"

Sizes overlap on purpose, so personal preference comes into it. If you land in two bands, riding style breaks the tie: longer for flow, trails and transitions, shorter for technical street and park.

How to measure

Stand your rider against a wall in the shoes they ride in, heels flat, and mark the top of their head. Measure from the floor to the mark.

Top tube is measured from the centre of the seat tube to the centre of the head tube, so it is not the same as the length of the tube you can see.

  • A 20 inch bike is the standard adult BMX and most riders end up there, so do not size a tall child down to a smaller wheel.
  • 22, 24 and 26 inch bikes are adult bikes with a bigger wheel, not bigger frames for taller riders.
  • Size up for stability through trails and transitions. Size down if you want the bike quick and twitchy for spins and grinds.
  • Top tube is fixed, but stem length, fork offset and bar position all shift how roomy the bike feels once you are on it.

Not sure? Send us their height and we will tell you what we would put them on.

Read the full buying guide

Colony Apprentice Flatland 20 Inch Bike - Gloss Black / 18.9

$999.99 AUD

Price match request

  • Arrives mostly assembled. Most people finish it in 10 to 20 minutes.
  • Pay in 4 with PayPal on orders under $2,000: 4 interest-free payments of $249.99, one every two weeks, with no late fees. How it works

Bike shipping from $39.99All rates

Free in-store pickup - Brisbane

Availability

18.9
Gloss Black
Matte Apple Silver

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

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