Description

The United Supreme is a 20 inch complete built on a frame with a cromo top tube, removeable brake mounts, an integrated head tube, a mid BB and a CNC seat stay bridge. Geometry runs a 20.75" top tube, 13.25" chainstays, a 75° head tube angle and an 8.25" standover.

The parts kit is United's own: a 36h Supreme sealed cassette hub with a 9t driver, a sealed mid bottom bracket, 170mm tubular cromo cranks, 9" x 28.5" bars and 2.3" United Direct tyres front and rear. It comes in a yellow and turquoise fade.

Features

  • Cromo top tube frame. The Supreme runs a cromo top tube with an integrated head tube, mid BB and removeable brake mounts.
  • Loud sealed cassette hub. The 36h United Supreme rear hub has a sealed 9t driver with four pawls on a 14mm axle.
  • 170mm tubular cromo cranks. Three piece cranks on a United sealed mid bottom bracket carry the load through the middle of the bike.
  • 9" bars, United grips. 9" x 28.5" bars with 2.5° up sweep and 11° back sweep, finished with United Team grips and bar ends.
  • Wide 2.3" United Direct tyres. The same tyre front and rear on 36h single wall alloy rims, all in a yellow and turquoise fade.

Specifications

  • Size: 20" wheels, 20.75" top tube
  • Frame: Cromo top tube, removeable brake mounts, integrated head tube, mid BB, CNC seat stay bridge, embossed logo down tube gusset
  • Top tube: 20.75"
  • Chainstay: 13.25"
  • Head tube angle: 75°
  • Seat tube angle: 71°
  • Standover: 8.25"
  • Bottom bracket height: 11.8"
  • Fork: Cromo steerer tube, integrated bearing race, tapered 1020 hi tensile steel legs
  • Headset: United integrated sealed bearing
  • Stem: United 50mm reach top load, embossed United logo on faceplate, forged detailing on sides
  • Bars: 9" x 28.5" 1020 hi tensile steel, larger radius bends, 2.5° up sweep, 11° back sweep
  • Grips: United Team grips
  • Bar ends: United bar ends
  • Brakes: 990 rear
  • Brake lever: Alloy, rear
  • Cranks: 3pc 170mm, tubular cromo, 8 spline, printed United logo
  • Bottom bracket: United sealed bearing mid
  • Sprocket: 25t steel
  • Chain: X410
  • Pedals: United Supreme PC
  • Front hub: 36h alloy, sealed bearing, female 10mm axle
  • Rear hub: 36h United Supreme sealed alloy cassette hub, 14mm axle, sealed bearing 9t driver, 4 pawl, ultra loud mechanism
  • Rims: Alloy 36h, single wall, front and rear
  • Tyres: United Direct 20 x 2.3", front and rear
  • Seat: United padded seat/post combo with custom sewn patch on rear
  • Seat post: Integrated with seat
  • Seat clamp: Alloy
  • Colour: Yellow/turquoise fade

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.

United Supreme 20 Inch Bike

Brand: United SKU: Click to copy the SKU and show the pick location

Sale priceFrom

$724.99 AUD

Regular price$849.99 AUD

Or 4 payments of $181.24 AUD with

Recommended Rider Height:

168cm+

Colour - Ribble Turquoise

Top Tube Length - 20.75

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.

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.


Discount 15%

Instead of $849.99

$724.99 AUD

Price match request

United Supreme 20 Inch Bike - Ribble Turquoise / 20.75

Metro bike shipping from $59.99

Regional and remote rates may differ

Free in-store pickup - Brisbane

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