Best Kids Bike Australia 2026: Reid vs Kmart Compared

If you’ve been standing in the bike aisle at Kmart on a Saturday morning, wondering whether the $99 special is actually going to last the school year, or scrolling through Reid’s website at 10pm trying to figure out if a 16-inch or 20-inch will fit your six-year-old — you’re not alone. Choosing the right kids bike in 2026 has somehow become both easier (more options than ever!) and harder (so many options!) than it was when we were kids.

The good news? After testing, talking to dozens of Aussie mums, and chatting with bike shop owners from Brisbane to Bunbury, we’ve put together the most honest guide you’ll find. Whether you’re shopping for a balance bike for your toddler, a first “big kid” bike for your five-year-old, or considering a kids electric bike for your tween’s school commute, this guide will save you both money and Sunday-morning frustration.

We’ll compare the major Australian players — Reid Cycles, Kmart, Big W, and the rising electric options — break down sizing by your child’s height (not just age), and share which bikes have earned our mum.com.au Approved tick for 2026. Grab a cuppa, this is the one you’ll want to bookmark.

How to Choose the Right Size Kids Bike (It’s Not About Age)

Here’s the single biggest mistake Aussie parents make: buying a bike based on their child’s age. Bike sizing is actually based on wheel diameter, and what really matters is your child’s inseam (inside leg measurement) and overall height.

Grab a tape measure, have your child stand against a wall in socks, and measure from the floor to where the top of their inner thigh meets their body. That number is gold.

Kids Bike Size Chart 2026

Wheel Size	Child Height	Inseam	Typical Age	Bike Type
12″	85–100cm	35–42cm	2–4 years	Balance bike / First pedal bike
14″	95–110cm	40–50cm	3–5 years	First pedal bike with training wheels
16″	105–120cm	45–55cm	4–6 years	Confident pedaller
20″	115–135cm	55–65cm	6–9 years	School-age all-rounder
24″	130–150cm	65–75cm	8–12 years	Tween/pre-teen bike
26″+	150cm+	75cm+	12+ years	Small adult bike

Pro tip from a mum who learnt the hard way: resist sizing up “so they grow into it.” A too-big bike is genuinely dangerous — kids can’t reach the brakes properly or put their feet down at stops. It’s the number one reason kids give up on bikes.

Reid Cycles: The Aussie Specialist Brand Worth the Splurge

Reid Cycles is a Melbourne-born brand that’s become something of a cult favourite among Australian families. Their kids bikes are designed specifically for our climate and conditions, and you can feel the difference the moment you pick one up — they’re noticeably lighter than the supermarket alternatives, which matters more than you’d think.

Why lightweight matters

A typical Kmart 16″ bike weighs around 9–10kg. A Reid equivalent weighs 6–7kg. When your child is only 18–22kg themselves, that 3kg difference is the equivalent of an adult trying to ride a bike that weighs 40kg. It’s the single biggest factor in whether your child will actually enjoy riding.

Reid kids bike range 2026

Reid Explorer Balance Bike (12″) — $149. Excellent first bike, super light at 3.2kg.
Reid Cruiser 14″ — $279. Coaster brake plus hand brake, great for transitioning from balance bike.
Reid Cruiser 16″ — $329. The sweet spot for 4–6 year olds.
Reid Cruiser 20″ — $399. Six gears, perfect for school commutes.
Reid MTB Sport 24″ — $549. Proper mountain bike for tweens.

Pros

Genuinely lightweight (huge for learning)
Quality components that last multiple kids
Strong resale value on Marketplace
Australian warranty and support
Compliant with all ACCC safety standards

Cons

Significantly more expensive upfront
Limited physical stores (mostly online or capital cities)
Some assembly required

Kmart Kids Bikes: The Budget Champion (With Caveats)

Let’s be real — Kmart kids bikes are the reason most Australian kids learn to ride. They’re affordable, available, and absolutely fine for casual backyard and footpath use. In 2026, Kmart has actually lifted its game, with better paint finishes and more reliable assembly out of the box.

Kmart kids bike range 2026

Kmart 12″ Balance Bike — $39. Heavy but functional.
Kmart 14″ Kids Bike — $89. Comes with training wheels.
Kmart 16″ Kids Bike — $99. The best-seller.
Kmart 20″ Kids Bike — $129. Six-speed available for $149.
Kmart 24″ Mountain Bike — $169.

Honest pros

Unbeatable price point
Available in-store across Australia
Fine for occasional riders
Easy to replace if outgrown quickly
Returns are straightforward at Kmart

Honest cons

Heavy — sometimes too heavy for smaller kids to control
Components wear faster (brakes, bearings)
Less resale value
Assembly quality varies — always check brake alignment before first ride

Big W and Target AU sit in similar territory to Kmart, with prices and quality broadly comparable. Big W’s Huffy range ($119–$189) is slightly better built than the unbranded Kmart bikes, in our experience.

Kids Electric Bike: Is Your Child Ready?

The kids electric bike category has exploded in 2026, and we get more questions about these than almost anything else. Let’s cut through the marketing.

First, a critical legal point: in Australia, e-bikes for public road and path use are limited to 250W motors and 25km/h pedal-assist under ACCC and state regulations. Anything more powerful is classified as a motor vehicle and isn’t legal for kids on shared paths. Be very wary of cheap imports advertised as “kids e-bikes” that exceed these limits.

When a kids electric bike makes sense

Tweens (10+) commuting to school over hilly terrain
Families who want to ride together but kids can’t keep up on longer rides
Kids transitioning to high school with longer commutes

When it doesn’t

Children under 10 — they’re still developing bike-handling skills
Kids who aren’t already confident, competent riders
If your child mostly rides at the local park

Top kids electric bike options in Australia 2026

Bike	Best For	Price (AUD)	Wheel Size
Reid Blacktop E 24″	Tween commuters	$1,899	24″
Pedal Uptown E Junior	10–13 years	$1,599	24″
Lekker Jordaan Junior	School commute	$2,199	26″
Smartmotion Hypersonic Mini	Family rides	$1,799	24″

Honestly? For most Australian families, a kids electric bike isn’t necessary until late primary or early high school. Save the money and invest in a quality non-electric bike that fits properly — your child will be a stronger, more confident rider for it.

Reid vs Kmart: The Head-to-Head Comparison

Let’s do the comparison most parents are actually weighing up. Both are legitimate choices — they just suit different families.

Feature	Reid Cruiser 16″	Kmart 16″ Kids Bike
Price	$329	$99
Weight	~6.5kg	~9.5kg
Brakes	Dual hand brakes + coaster	Coaster + front hand brake
Tyres	Quality pneumatic	Basic pneumatic
Frame	Lightweight alloy	Steel
Resale value (2 yrs)	~$180	~$30
Realistic lifespan	3–4 kids	1–2 kids

The real cost comparison: If you’ve got two or three children, a Reid bike passed down works out cheaper per child than buying three Kmart bikes — and each child gets a noticeably better riding experience. If you’ve got one child who’ll outgrow it in 18 months and you’re not sure they’ll love riding, Kmart is the smart starter choice.

Don’t Forget: The Essentials Beyond the Bike

Whatever bike you choose, budget for these — they’re non-negotiable in Australia.

Helmet (legally required)

Australian law requires all riders, regardless of age, to wear an approved helmet (AS/NZS 2063 standard). Look for the sticker. Decent kids helmets start around $25 at Big W or Kmart, with quality options like Bell or Giro at Baby Bunting from $49–$89.

Lights and bell

A bell is legally required in most Australian states. If your child rides at dusk (which they will in winter), front and rear lights are essential — about $25 for a basic set.

Knee and elbow pads

Especially for new riders. A set runs around $20–$30 at Kmart or Rebel Sport.

Sun protection

A clip-on bike helmet visor or making sure the helmet has good coverage is sensible for our brutal Aussie sun. Always sunscreen up before longer rides.

mum.com.au Approved: Our 2026 Top Picks

After all the testing, talking, and reading customer reviews until our eyes blurred, here are the kids bikes we’re confidently recommending to friends in 2026.

🏆 Best Overall Kids Bike: Reid Cruiser (any size)

The lightweight build genuinely transforms how quickly kids learn and how much they enjoy riding. If you can stretch the budget, this is the one.

💰 Best Budget Kids Bike: Kmart 16″ or 20″ Kids Bike

For occasional riders or first-time learners, the value is unbeatable. Just make sure to check the assembly carefully — particularly brake tension and wheel alignment — before first ride.

🚲 Best First Balance Bike: Reid Explorer 12″

Light enough for a two-year-old to actually pick up and manoeuvre. Worth every cent.

⚡ Best Kids Electric Bike: Reid Blacktop E 24″

For older tweens who genuinely need it, this is legal, well-supported in Australia, and built to last.

🎁 Best Bike for Christmas Gifting: Big W Huffy 16″ or 20″

Reliable, available, comes in styles kids love, and won’t break the bank when there’s also Lego and a scooter on the list.

Frequently Asked Questions

What age should my child get their first bike?

A balance bike can start from around 18 months to 2 years — whenever they’re walking confidently. A first pedal bike typically suits kids from 3–4 years. But age is less important than confidence and physical readiness — some kids are ready earlier, some later, and that’s completely normal.

Are training wheels or balance bikes better?

Balance bikes, almost always. Kids who learn on a balance bike typically skip training wheels entirely and transition straight to a pedal bike, often by age 4. Training wheels teach kids to lean the wrong way and delay learning actual balance. If you’ve already got training wheels, you can simply remove the pedals and use the bike as a balance bike to start.

Where can I buy kids bikes in Australia?

Kmart, Big W, and Target AU stock the budget end. Reid Cycles (online + capital city stores), 99 Bikes, and local bike shops carry the mid-to-premium range. Baby Bunting has expanded their balance bike range significantly in 2026. For second-hand, Facebook Marketplace and Gumtree are goldmines — quality kids bikes hold their value well.

How much should I spend on a kids bike?

For a first balance bike or occasional rider: $80–$200 is plenty. For a child who rides regularly: $250–$450 gets you a quality bike that will last and be a joy to ride. For a kids electric bike: budget $1,500–$2,200 for something legal, safe, and reliable in Australia. Avoid cheap imports under $1,000 in the electric category — they often don’t meet Australian safety or regulatory standards.

Is it safe to buy a kids bike second-hand?

Absolutely, and we’d actively encourage it for younger kids who outgrow bikes quickly. Check for: rust on the frame, smooth brake operation, true (non-wobbly) wheels, and that all bolts are tight. Always buy a new helmet though — once a helmet has been in an impact, it’s no longer safe, and you can’t always tell from the outside.

The Bottom Line

The best kids bike for your family in 2026 isn’t necessarily the most expensive one — it’s the one that fits your child properly, suits how often they’ll actually ride, and fits your family’s budget without stress. A Kmart bike that gets ridden every weekend at the park is infinitely better than a premium Reid gathering dust because the wrong size made riding frustrating.

If we had to pick just one piece of advice: prioritise fit and weight over brand or price. Measure your child’s inseam, check the bike’s weight (ideally under 40% of your child’s body weight), and make sure they can put both feet flat on the ground when seated. Get those three things right, and your kid is going to have a brilliant time on two wheels.

Now — bell on, helmet clipped, sunscreen reapplied. Off you go. 🚲