The Kink Gap 20 Inch Bike (2026) is a black BMX bike with a robust Chromoly frame, thick tires, and padded seat. It features sealed bearings for smooth rides and a straight handlebar, with the "Kink BMX" branding in yellow on the frame.
The Kink Gap 20 Inch Bike (2026) showcases a green chromoly frame with a brown seat, black handlebars, and tires, proudly displaying the "Kink" brand.
The Kink Gap 20 Inch Bike (2026), featuring a yellow chromoly steel frame with black handlebars and wheels, rests on a gray concrete floor against a brick wall, while its brown saddle offers a striking contrast.
The Kink Gap 20 Inch Bike (2026), in yellow chromoly steel, showcases a brown leather seat and black tires, set against a dark brick wall.
The Kink Gap 20 Inch Bike (2026), crafted from durable chromoly steel, features a black frame with thick tires and yellow decals, set against a gray brick wall.
The Kink Gap 20 Inch Bike (2026), a black BMX featuring yellow lettering, made from durable chromoly steel, is set against a dark brick wall backdrop.
Close-up of the Kink Gap 20 Inch Bike (2026), highlighting the crankset, pedal, chainring, and rear wheel on its 4130 chromoly frame with Kink BMX branding.
Close-up of a black handlebar with textured rubber grip and metal brake lever, typically found on the Kink Gap 20 Inch Bike (2026), which features strong 4130 chromoly construction.
Close-up of a brown leather Kink BMX seat with embossed branding, mounted on a matte olive green Kink Gap 20 Inch Bike (2026) frame made from durable 4130 chromoly.
Close-up of a black KINK BMX Bold HRD 50mm stem attached to handlebars, featuring bolts and logo—an ideal upgrade for your Kink Gap 20 Inch Bike (2026) or any ride needing 4130 chromoly strength.
Close-up of a black bicycle tire with textured tread and visible spokes on the Kink Gap 20 Inch Bike (2026).
Close-up of the crank, chainring, pedal, and rear tire of the Kink Gap 20 Inch Bike (2026), with "KINK BMX" in yellow on the 4130 chromoly black frame.
Close-up of a black bicycle seat on the Kink Gap 20 Inch Bike (2026), showcasing textured stitching and saddle details against the sleek 4130 chromoly frame.
Close-up of the black stem and handlebars of the Kink Gap 20 Inch Bike (2026), showing bolts and “KINK BMX” branding on the cap and faceplate atop its sturdy 4130 chromoly frame.

Description

The Gap is a versatile bike that is ready to handle more serious riding. It brings 4130 chromoly steel tubing into areas of the frame, fork and handlebars to improve the overall strength and longevity of the bike.

Upgrades like the Stealth seat system offer more adjustability and modern compatibility, and the sealed mid bottom bracket and sealed integrated headset keep things running smoothly. Its moderate to modern geometry is great for all types of riding.

Features
  • Chromoly through the key tubes. 4130 in the head tube, top tube and down tube, plus the fork steerer and the bars, for strength where the bike works hardest.
  • Stealth seat system. The Kink Plymouth/Bomber seat and Mission Stealth post give you more adjustability and modern compatibility.
  • Kink Ridge 3-piece cranks. Tubular chromoly, 170mm, 8 spline: built for riders starting to put the bike through real punishment.
  • Sealed mid BB and integrated headset. Less maintenance and a smoother feel through the cranks and the front end, session after session.
  • Moderate to modern geometry. A 20.5" top tube, 75° head tube and 13.25" chainstays make it comfortable across street, park and trails.

Specifications
  • Size: 20" wheels
  • Frame: Kink Gap, 4130 chromoly head tube, top tube and down tube
  • Top tube: 20.5"
  • Chainstay: 13.25"
  • Head tube angle: 75°
  • Seat tube angle: 71°
  • Standover: 9"
  • Bottom bracket height: 11.6"
  • Fork: Kink Stryker, 4130 chromoly steerer, tapered legs, 32mm offset
  • Headset: Mission sealed integrated
  • Stem: Kink Bold HRD, 50mm
  • Bars: Kink T900, 9" rise, 100% 4130 chromoly
  • Grips: Kink Ace
  • Bar ends: Kink Thrust
  • Brakes: Mission Cease V2, welded mounts, Mission L3 linear cable
  • Brake lever: Mission Token
  • Cranks: Kink Ridge, 3-piece tubular chromoly, 170mm, 8 spline
  • Bottom bracket: Sealed mid, 19mm
  • Sprocket: Mission Breach 25T
  • Chain: Mission 410
  • Pedals: Kink Hemlock
  • Front hub: Mission Covert unsealed, 3/8" axle
  • Seat: Kink Plymouth/Bomber Stealth
  • Seat post: Mission Stealth
  • Seat clamp: Mission Slim

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.

Kink Gap 20 Inch Bike (2026)

Brand: Kink SKU:

From

$749.99 AUD

 $848.99 AUD

Or 4 payments of $187.49 AUD with

Colour - Black Gold

Top Tube Length - 20.5

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

Discount 12%

Instead of $848.99

$749.99 AUD

Price match request

Kink Gap 20 Inch Bike (2026) - Black Gold / 20.5

Metro bike shipping from $59.99

Regional and remote rates may differ

Free in-store pickup - Brisbane

Availability

20.5
Black Gold
Fern Green

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

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