When you’re choosing your child’s first bike, it’s worth looking beyond the price tag and thinking about ease of use, quality, and how long the bike will actually last. On the surface, the LittleBig and Decathlon 2-in-1 may look similar — both start as balance bikes and convert to pedal bikes — but there are some key differences that really affect your child’s experience.

Weight

Decathlon 2 in 1 bike: 6.6kg (in balance bike mode).

LittleBig 3 in 1 bike: 4.3kg as a little or big balance bike and 6.2kg as a pedal bike.

Because the Decathlon uses a steel frame and keeps the chain, bottom bracket, and drivetrain permanently attached, its “balance bike” configuration is effectively 2.3kg (around 50%) heavier than the LittleBig. That extra weight makes a big difference for small riders: it’s harder to push, steer, and lift over obstacles. It also means more effort for parents who may need to carry it home from the park. By contrast, the LittleBig’s aluminium frame and fork keeps it lightweight, strong, and rust-free.

Saddle Height Range

Decathlon bike: 41.5cm to 52.5cm (11 cm adjustment).

LittleBig bike: 30cm to 52cm thanks to the unique growing frame (22 cm adjustment).

Although both bikes reach a similar maximum saddle height, the LittleBig has a much lower starting point, making it accessible for younger and smaller riders right from the start. With double the adjustment range, the LittleBig adapts as your child grows, extending its useful lifespan by years compared to the Decathlon.

Components & Quality

The Decathlon bike is built to a simpler spec: plastic brake levers and a one-piece handlebar. By comparison, the LittleBig uses alloy components throughout, the same materials you’d expect to find on a high-quality adult bike, scaled down for kids. This means better performance, smoother braking, and durability you can rely on.

Long-Term Value

While the upfront price of the LittleBig is higher, it’s carefully designed to offer greater long-term value:

• Lighter and easier to ride in balance mode.
• Fits your child for roughly twice as long as the Decathlon 2 in 1.
• Built to last with quality parts that can withstand years of use and multiple riders.
• LittleBig is backed by free delivery, compared to Decathlon’s £12.99 shipping charge.

In short, the LittleBig isn’t just a bike that grows — it’s an investment in your child’s cycling journey, offering comfort, safety, and enjoyment for far longer than cheaper alternatives.

Comparison at a Glance

To make it easier, here’s a side-by-side comparison. This highlights the differences that matter most — weight, fit, and overall value for money.