The Sunday Primer 16 Inch Bike (2025) in teal is a BMX bike designed for children, featuring black handlebars, pedals, and tires. Its simple frame design and robust chain drive system ensure reliability, while the Odyssey Springfield Brakes provide superior stopping power for safe riding.
The Sunday Primer 16 Inch Bike (2025), featuring a teal frame, black seat, black handlebars, and thick tires with Pro-Style Geometry, is parked on a concrete surface.
A close-up view of the handlebars and front of a blue Sunday Primer 16 Inch Bike (2025) on a concrete surface. "Sunday" is printed on the handlebars, showcasing its Odyssey Springfield Brakes.
Close-up of a black bicycle handlebar and stem with four bolts and a cap on the Sunday Primer 16 Inch Bike (2025). The teal bike frame stands out against the gray pavement in the background, showcasing precision components like the Odyssey Springfield Brakes.
Close-up of a BMX bike wheel hub bearing the "Sunday" logo. The black hub and spokes connect to a teal frame. The wheel, which is part of the 2025 Sunday Primer 16 Inch Bike, rests on a gray concrete surface.
Close-up image of a black chainring and crankarm on the Sunday Primer 16 Inch Bike (2025), attached to a teal frame with Odyssey Springfield Brakes and a section of the tire visible in the background.
Close-up view of the turquoise frame on the Sunday Primer 16 Inch Bike (2025), highlighting the branding "Primer" and "Sunday," with a focus on the chain and Odyssey Springfield Brakes.
Close-up of a black wheel hub labeled "Sunday," with spokes radiating outward on the Sunday Primer 16 Inch Bike (2025). The blurred background emphasizes its pro-level BMX quality, perfect for 16” bikes.
Close-up of the Odyssey Springfield Brakes on the rear of a Sunday Primer 16 Inch Bike (2025) in teal, mounted over a black tire—ideal for pro-level BMX performance.
Close-up of a black seat with "Sunday Bikes" logo on a turquoise Sunday Primer 16 Inch Bike (2025), perfect for pro-level BMX riders.
Close-up of the black front wheel hub and spokes on the Sunday Primer 16 Inch Bike (2025), with "Sunday" in white lettering on the fork, showcasing pro-level BMX features.
Close-up of a black "wellgo" pedal with a yellow reflector, attached to a black crank arm on light concrete—perfect for pro-level setups like the 2025 Sunday Primer 16 Inch Bike.
Close-up of a bicycle handlebar with a black grip and brake lever, showing part of the turquoise Sunday Primer 16 Inch Bike (2025) frame—perfect for upgrading your 16” BMX with Odyssey Springfield Brakes.

Highlights

  • Pro style geometry, scaled to 16"
  • Fully sealed 10T cassette hub
  • Odyssey Springfield U-brakes
  • 3 piece chromoly cranks, 127mm

Description

The Sunday Primer 16" is better than ever and suits younger riders who already have plenty of tricks up their sleeve. It rides like a pro level bike scaled down to what smaller BMXers need, and Sunday's own geometry helps them adapt quickly as they grow onto bigger bikes.

The parts kit backs that up. Odyssey Springfield U-brakes, a fully sealed 10T cassette hub, an FSA integrated headset and a KMC S1 chain give you reliability you can count on, all rolling on Sunday Current 16 x 2.1" tyres.

Features
  • Pro style geometry, scaled to 16". Sunday's own geometry means younger riders adapt quickly when it is time to move onto a bigger bike.
  • Fully sealed 10T cassette hub. A sealed rear hub on a 14mm axle keeps the drive turning reliably ride after ride.
  • Odyssey Springfield U-brakes. Proper aftermarket brakes with an alloy lever and Odyssey Quik Slic cable, so stopping is never the weak point.
  • 3 piece chromoly cranks, 127mm. A sealed 19mm mid bottom bracket and a 25T steel Sabertooth v2 sprocket back them up.
  • Light and easy up front. A 40mm top load stem, 2 piece Sunday bars and Velo Junior grips keep the cockpit manageable for small hands.

Specifications
  • Size: 16" wheels, 16.5" top tube
  • Frame: Sunday Primer, 16.5" top tube, integrated 1-1/8" head tube
  • Top tube: 16.5"
  • Fork: Sunday Primer, 16", 2 piece steerer tube with welded pre-load
  • Headset: FSA integrated 1-1/8" with FSA aluminium cap
  • Stem: Top load, aluminium, 40mm
  • Bars: Sunday, 2 piece
  • Grips: Velo Junior
  • Brakes: Odyssey Springfield U-brake with Odyssey Quik Slic cable
  • Brake lever: Aluminium, U-brake compatible
  • Cranks: 127mm, 3 piece, chromoly
  • Bottom bracket: Sealed, mid, 19mm
  • Sprocket: Sunday Sabertooth v2, 25T, steel
  • Chain: KMC S1
  • Pedals: Wellgo Junior platform, plastic
  • Front hub: Sunday, 20H, low flange, loose ball, 3/8" axle
  • Rear hub: Sunday, 20H, sealed, 14mm axle with 10T driver
  • Spokes: 14g steel, black
  • Rims: P-7X aluminium, 16", 20H
  • Tyres: Sunday Current, 16 x 2.1", front and rear
  • Seat: Sunday Badge, seat and post combo
  • Seat post: Integrated
  • Seat clamp: Sunday
  • Weight: 10.6 kg approx.

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 16 Inch Bike (2025)

Brand: Sunday SKU:

From

$799.99 AUD

 $839.99 AUD

Or 4 payments of $199.99 AUD with

Recommended Rider Height: 96 to 122 cm

Colour - Turquoise

Top Tube Length - 16.5

16 inch BMX sizing

A 16 inch bike suits a rider of about 96 to 122cm, usually 4 to 7 years old, on a 16 to 16.5 inch top tube. It is the size most kids learn to ride properly on.

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. At this wheel size the top tube barely changes the fit: go by height, and check they can stand over the bike flat footed.

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 wheel sizes? Go up. Kids grow into a bike far faster than they grow out of the fun.
  • They should be able to stand over the top tube with both feet flat on the ground.

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

Read the full buying guide

16 inch BMX sizing

A 16 inch bike suits a rider of about 96 to 122cm, usually 4 to 7 years old, on a 16 to 16.5 inch top tube. It is the size most kids learn to ride properly on.

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. At this wheel size the top tube barely changes the fit: go by height, and check they can stand over the bike flat footed.

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 wheel sizes? Go up. Kids grow into a bike far faster than they grow out of the fun.
  • They should be able to stand over the top tube with both feet flat on the ground.

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

Read the full buying guide

Sunday Primer 16 Inch Bike (2025) - Turquoise / 16.5

Instead of $839.99

$799.99 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 $199.99, one every two weeks, with no late fees. How it works

Bike shipping from $29.99All rates

Free in-store pickup - Brisbane

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