The DK Swift Expert 20 Inch Bike 2025 is a black BMX with straight handlebars, padded seat, and all-terrain tires, displayed in profile against a white background.

Description

Ready to ride. The DK Swift bikes are an affordable first step to a life of BMX. The Swift series is sized to fit every rider in your crew, from the 18” Micro for the youngins to the Pro 20" for full-sized humans. Each Swift bike is built on a lightweight aluminum frame with race-proven geometry, sized by model with proportionate handlebars, cranks, and gearing. The Swift Pro features a sturdy chromoly 3-piece crank, while other sizes have a 3-piece alloy crank, sized accordingly. Alloy rims fitted with all-terrain tires put these bikes into motion and provide a smooth ride on any surface. All told, the Swift Series bikes are easy to ride, ready to race, and delivered at an unbeatable price.

Features
  • Expert sized race frame. Lightweight 6064 aluminium with an integrated head tube and race proven geometry, one step up in size from the Junior.
  • 165mm forged alloy 3-piece cranks. Enough crank length to put power down out of the gate, spinning a 42 tooth chainring into a 16 tooth freewheel.
  • Sealed hubs on chromoly axles. Alloy sealed hubs front and rear on 3/8" chromoly axles, laced with 14 gauge spokes to single wall alloy rims.
  • Roomy top load cockpit. A 40mm reach alloy top load stem, 6.5" rise hi-tensile steel bars and DK Tsuka grips with press-in bar plugs.
  • Ready to race at 9.1 kg. An alloy Pro linear V-brake, 20x1-3/8" Arisun XLR8 tyres and a DK Pro one piece seat and post combo.

Specifications
  • Size: 20"
  • Frame: 6064 aluminium with integrated head tube
  • Fork: Hi-tensile steel with 1-1/8" chromoly steerer and tapered legs
  • Headset: 1-1/8" threadless integrated
  • Stem: Alloy top load, 40mm reach
  • Bars: 6.5" rise, hi-tensile steel
  • Grips: DK Tsuka with press-in bar plugs
  • Brakes: Alloy Pro linear V-brake
  • Brake lever: Alloy
  • Cranks: Forged alloy 3-piece, 165mm
  • Bottom bracket: Sealed European
  • Chainring: 42-tooth, alloy, 5-bolt
  • Chain: KMC 1/8"
  • Pedals: DK Blender PC platform
  • Front hub: Alloy, sealed, 3/8" chromoly axle
  • Rear hub: Alloy, sealed, 3/8" chromoly axle
  • Rear cog: 16-tooth freewheel
  • Spokes: 14 gauge, black
  • Rims: Alloy, single wall, 36-hole
  • Tyres: 20x1-3/8" Arisun XLR8
  • Seat: DK Pro 1-piece seat and post combo
  • Seat post: Integrated, 27.2mm, alloy
  • Seat clamp: Alloy
  • Gearing: 42/16
  • Weight: 9.1 kg
  • Colour: Black

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.

DK Swift Expert 20 Inch Bike 2025

Brand: DK Bicycles SKU:

$699.99 AUD

Or 4 payments of $174.99 AUD with

Colour - Black

Top Tube Length - 19.5

BMX race bike sizing

Race frames are sized by class, and the class you ride is set by rider height rather than age.

SizeRider heightTop tube
Micro (18" wheels)Under 120cm16.25"
Mini (20" wheels)110 to 140cm17 to 18"
Junior120 to 150cm18.25 to 18.75"
Expert130 to 170cm19.5 to 19.75"
Expert XL145 to 170cm20 to 20.75"
Pro150 to 175cm20.25 to 20.75"
Pro XL165 to 180cm21 to 21.25"
Pro XXL170 to 185cm and up21.5 to 21.85"
Pro XXXL175cm and up22"
Pro XXXXL180cm and up22.5"
Cruiser (24" wheels)175cm and up21.5" and up

Heights overlap between classes on purpose. Where you land in two, a growing rider is usually better on the larger, and a rider who wants the bike to turn faster on the smaller. Some brands label the Pro size Pro L, with the same fit.

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.

  • Between two sizes and still growing? Take the larger size.
  • Racing gates and wanting the bike to turn faster? Take the smaller size.
  • Top tube is the number that actually changes the fit, so compare it against the bike they ride now.

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

Read the full buying guide

BMX race bike sizing

Race frames are sized by class, and the class you ride is set by rider height rather than age.

SizeRider heightTop tube
Micro (18" wheels)Under 120cm16.25"
Mini (20" wheels)110 to 140cm17 to 18"
Junior120 to 150cm18.25 to 18.75"
Expert130 to 170cm19.5 to 19.75"
Expert XL145 to 170cm20 to 20.75"
Pro150 to 175cm20.25 to 20.75"
Pro XL165 to 180cm21 to 21.25"
Pro XXL170 to 185cm and up21.5 to 21.85"
Pro XXXL175cm and up22"
Pro XXXXL180cm and up22.5"
Cruiser (24" wheels)175cm and up21.5" and up

Heights overlap between classes on purpose. Where you land in two, a growing rider is usually better on the larger, and a rider who wants the bike to turn faster on the smaller. Some brands label the Pro size Pro L, with the same fit.

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.

  • Between two sizes and still growing? Take the larger size.
  • Racing gates and wanting the bike to turn faster? Take the smaller size.
  • Top tube is the number that actually changes the fit, so compare it against the bike they ride now.

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

Read the full buying guide
$699.99 AUD

Price match request

DK Swift Expert 20 Inch Bike 2025 - Black / 19.5

Metro bike shipping from $59.99

Regional and remote rates may differ

Free in-store pickup - Brisbane

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