The Sunday Primer Park 20 Inch Bike is shown in light blue with black handlebars, seat, pedals, and tires, displayed in a side view against a white background.

Sunday Primer Park 20 Inch Bike (2023) / Matte Toothpaste / 20.5TT

A Sunday Primer Park 20 Inch Bike in mint green, with black handlebars, seat, and tires and a gyro setup, is parked on concrete in daylight.

A mint green Sunday Primer Park 20 Inch Bike with black handlebars, seat, and tires is parked on pavement near a concrete embankment and several train cars.

Close-up of the Sunday Primer Park 20 Inch Bike handlebar stem with "SUNDAY" engraving, visible bolts, partial handlebar, and elements of its BMX gyro setup.

Close-up of a black ribbed handlebar grip with "SUNDAY" embossed, set against part of the teal Sunday Primer Park 20 Inch Bike frame and tire—ideal for your next park BMX session.

Close-up of the mint green Sunday Primer Park 20 Inch Bike frame, labeled "PRIMER" and "SUNDAY," highlighting the rear tire, part of the front fork, and handlebar stem on this BMX park bike.

Close-up of a Sunday Primer Park 20 Inch Bike tire labeled "ODYSSEY," featuring Odyssey components, 35-65 PSI recommended pressure, and mounted on a black rim—ideal for BMX park riding.

The Sunday Primer Park 20 Inch Bike features a black seat designed for comfort and style, making it a great match for Odyssey components or a dedicated gyro setup.

Close-up of a "Spring Field" brake arm, an Odyssey component, mounted on a teal Sunday Primer Park 20 Inch Bike frame with a black tire.

Close-up of the Sunday Primer Park 20 Inch Bike’s handlebars and front frame with black grips, a visible brake lever, and Odyssey components, resting on cracked concrete.

Close-up of the Sunday Primer Park 20 Inch Bike’s handlebar stem and headset area, featuring Odyssey components, visible cables, and adjustment bolts on a teal frame.

Close-up of a black Sunday Primer Park 20 Inch Bike fork with "Sunday" in white, showing spokes, axle, and nut—highlighting Odyssey parts against a blurred concrete background.

Close-up of a Sunday Primer Park 20 Inch Bike crank arm and chainring, showing Odyssey components on a light blue BMX frame with black tire.

Close-up of a black stem engraved with "SUNDAY," attached to handlebars and secured by four bolts—ideal for the Sunday Primer Park 20 Inch Bike, which features top-notch Odyssey components perfect for BMX riding.

Close-up of a black pedal attached to a crank arm on the Sunday Primer Park 20 Inch Bike, shown against a blurred light gray background—perfect for BMX riding with an Odyssey components gyro setup.

Highlights

Built for park from the start
Odyssey Gyro G3 detangler
9T sealed cassette rear hub
Odyssey Path Pro 2.4" tyres

Description

If you are looking for a bike that is built specifically for park shredding then look no further. This dialled rig is equipped with a gyro setup so that you can spin your bars and whips like there is no tomorrow and the bike is loaded up with heaps of great quality parts and features resulting in a park destroyer!

Features

Built for park from the start. Park specific geometry: a 20.5" top tube, 75.5° head angle and 12.7-13" chainstays that turn on command.
Odyssey Gyro G3 detangler. Bar spins and whips stay tangle free while the Springfield U-brake keeps working off the M2 trigger lever.
9T sealed cassette rear hub. A sealed 14mm rear hub with a 9T driver rolls smoothly and keeps the gearing light.
Odyssey Path Pro 2.4" tyres. Fat rubber front and rear on 36H P-7X aluminium rims, with 14g steel spokes holding it all together.
Chromoly cranks, sealed mid BB. 160mm 3-piece chromoly cranks turn a 25T Sunday Sabertooth v2 sprocket and KMC S1 chain, all up 11.70 kg.

Specifications

Size: 20.5" top tube
Frame: Sunday Primer, integrated 1-1/8" head tube
Top tube: 20.5"
Chainstay: 12.7-13”
Head tube angle: 75.5°
Seat tube angle: 71°
Standover: 7.5"
Bottom bracket height: 11.625"
Fork: Sunday Primer, 20" fork w/ 2-piece steerer tube and welded pre-load
Headset: FSA integrated, 1-1/8", FSA aluminium cap
Stem: Sunday Freeze top load, 48mm
Bars: Sunday, 2-piece, 9" rise, 28.5" wide, 12° backsweep, 4° upsweep
Grips: Sunday Cornerstone
Brakes: Odyssey Springfield U-brake with Odyssey Gyro G3 detangler, Odyssey M2 upper and 2x single lower cables
Brake lever: Odyssey M2 Trigger
Cranks: 160mm, 3-piece, chromoly
Bottom bracket: Sealed, mid, 19mm
Sprocket: Sunday Sabertooth v2, 25T, steel
Chain: KMC S1
Pedals: Wellgo platform, plastic
Front hub: Sunday, 36H, low-flange, loose-ball, 3/8" axle
Rear hub: Sunday, 36H, sealed, 14mm axle w/ 9T driver
Spokes: 14g steel, black
Rims: P-7X aluminium, 20", 36H
Tyres: Odyssey Path Pro OEM, 20 x 2.4" (front and rear)
Seat: Sunday Badge, seat and post combo
Seat post: Integrated
Seat clamp: Sunday
Weight: 11.70 kg (with brakes)

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.

Sunday Primer Park 20 Inch Bike

Name: Sunday Primer Park 20 Inch Bike
Brand: Sunday
SKU: SUBK233-23-TOO
Price: 899.99 AUD
Availability: OutOfStock

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

$899.99 AUD

Or 4 payments of $224.99 AUD with

Colour - Matte Toothpaste

Top Tube Length - 20.5

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 height	Wheel size	Top tube
60 to 91cm	12"	12 to 12.5"
81 to 106cm	14"	14 to 14.5"
96 to 122cm	16"	16 to 16.5"
122 to 147cm	18"	18 to 18.5"
147 to 157cm	20"	19.75 to 20.25"
157 to 168cm	20"	20 to 20.5"
168 to 175cm	20"	20.25 to 20.75"
175 to 183cm	20"	20.5 to 21"
183 to 190cm and up	20"	20.75 to 21.5"
160cm and up	22"	21 to 22.25"
160cm and up	24"	21.75 to 22"
160cm and up	26"	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

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 height	Wheel size	Top tube
60 to 91cm	12"	12 to 12.5"
81 to 106cm	14"	14 to 14.5"
96 to 122cm	16"	16 to 16.5"
122 to 147cm	18"	18 to 18.5"
147 to 157cm	20"	19.75 to 20.25"
157 to 168cm	20"	20 to 20.5"
168 to 175cm	20"	20.25 to 20.75"
175 to 183cm	20"	20.5 to 21"
183 to 190cm and up	20"	20.75 to 21.5"
160cm and up	22"	21 to 22.25"
160cm and up	24"	21.75 to 22"
160cm and up	26"	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

Sunday Primer Park 20 Inch Bike - Matte Toothpaste / 20.5

$899.99 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 $224.99, one every two weeks, with no late fees. How it works

Bike shipping from $39.99All rates

Free in-store pickup - Brisbane

Availability

	20.5
Matte Toothpaste
Mat Ice Green
Gloss Berry

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

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Highlights

Description

Features

Specifications

Assembly information

Sunday Primer Park 20 Inch Bike

How to measure

How to measure

Price match request

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