52 days to Christmas 2026
A first proper bike, a helmet they’ll actually wear and kit for muddy weekends. Live UK prices, plus a simple guide to getting the size right.
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Light bikes they can handle and helmets with easy fit systems. Every card shows today’s cheapest in-stock UK price and the lowest we’ve tracked.
32%offLowest we’ve trackedOur top pick
A light, sturdy 16-inch bike from Marin with brakes that small hands can use. A 16-inch wheel usually suits children of around 4 to 6, but check the retailer’s size chart against their height.
Good for: A first pedal bike after a balance bike
Save £110.00
Lowest we’ve trackedBest next step up
A 20-inch bike with a light aluminium frame and fork that’s easy to control on paths and trails. A 20-inch wheel often suits children of around 6 to 8, depending on height.
25%offLowest we’ve trackedBest for older kids
A light aluminium 26-inch bike that Ridgeback designs for riders aged 12 and up, in a height range of about 150 to 165cm. A grown-up bike without the grown-up weight.
53%offLowest we’ve trackedBest for toddlers
Bell’s toddler size, for small heads in a bike seat, trailer or on a balance bike. The no-pinch side buckle makes it easier to get on a wriggling child.
Lowest we’ve trackedBest first helmet
The kids’ size of Bell’s Lil Ripper, with the same no-pinch buckle. Bright and simple to fit, which helps when getting them to wear it at all.
53%offLowest we’ve trackedBest fun design
The same kids’ helmet in a playful print. Letting them choose the colour is half the battle.
40%offLowest we’ve trackedBest with Mips
A kids’ helmet from Trek with Mips, designed for road and trail riding.
40%offLowest we’ve trackedBest everyday youth helmet
A durable youth helmet with a tough shell and Giro’s Roc Loc dial for a quick, secure fit as they grow.
50%offLowest we’ve trackedBest for young MTBers
A light trail helmet for younger mountain bikers, with extended rear coverage and internal air channels.
36%offLowest we’ve trackedBest adjustable fit
A kids’ helmet with an integrated visor, deep side coverage and Lazer’s TurnSys dial for adjusting the fit on the go.
Lowest we’ve trackedBest for muddy weekends
A youth rain jacket with a helmet-compatible hood, a water-repellent finish and zipped pockets. Good for trail centres and wet school runs.
Kids’ bikes are sized by wheel diameter. These ages are rough guides only. Height and inside-leg matter more, so always check the retailer’s size chart before you buy.
Balance bike
12in wheels · around 2–4 years
No pedals. Teaches balance first, which makes moving to a pedal bike much easier.
14in or 16in
Around 4–6 years
The usual first pedal bike. Look for light weight and brakes small hands can reach.
20in
Around 6–8 years
Often the first bike with gears. A light frame makes a big difference at this size.
24in
Around 8–11 years
Closer to an adult bike, often with more gears and sometimes suspension.
26in or small adult
Around 11 and up
Depends on height. Some brands size these by rider height, around 150cm and taller.
Live deals from UK retailers, biggest saving first.
53%offTweeks Cycles
Save £24.00
53%offTweeks Cycles
Save £24.00
53%offTweeks Cycles
Save £24.00
53%offTweeks Cycles
Save £24.00
53%offTweeks Cycles
Save £24.00
53%offTweeks Cycles
Save £24.00
53%offTweeks Cycles
Save £24.00
53%offTweeks Cycles
Save £24.00
A child’s first good bike is one of the best presents there is. Getting it right comes down to size, weight and a helmet that fits.
Size by height, not age. Ages on size guides are only a starting point. Measure their height and inside leg, then check the brand’s chart. A bike that’s too big is harder to control and puts children off.
Lighter is better. Many cheap kids’ bikes use heavy steel frames. A light aluminium frame, like the ones above, is much easier for a small rider to pedal and steer.
Don’t buy to grow into. It’s tempting to buy a size up so it lasts longer. Most children are happier on the right size now, and a good bike holds its value if you sell it on later.
A helmet that fits is a helmet they’ll wear. Kids’ helmets are sized by head circumference, measured just above the eyebrows. A dial adjuster helps them grow into it within its size range.
Plan the big reveal. Most bikes arrive part-assembled. Fit the pedals and handlebars, set the saddle height and check the brakes before Christmas morning, or ask the retailer whether they deliver it ready to ride.
Make the gift budget go further
Don’t overpay
We record prices from UK retailers through the day. Open “Compare prices” on any pick to see every shop selling it and the lowest price we’ve tracked.
Browse today’s biggest dropsStack the saving
Many UK bike shops run newsletter, student or NHS discounts on top of their sale prices. We list the working ones per retailer.
See cycling discount codesGift finder
Every gift guide has live prices and hand-picked products.
Black Friday 2026
Buy the big gifts while the sale is on
Friday 27 November and Cyber Monday 30 November are the cheapest window for Christmas shopping.
Open the guideKids’ bikes are sized by wheel size. As a rough guide, 16-inch wheels suit around 4 to 6, 20-inch around 6 to 8, and 24-inch around 8 to 11. Height and inside-leg matter more than age, so always check the retailer’s size chart.
Usually not. A bike that’s too big is harder to control and can put a child off riding. Buy the right size now; good kids’ bikes hold their value when you sell them on.
Measure head circumference just above the eyebrows and match it to the brand’s size range. Toddler, kids’ and youth helmets each cover different ranges. A dial adjuster helps the helmet fit as they grow.
Most arrive part-assembled: you fit the pedals and handlebar and set the saddle. Check the retailer’s delivery notes, and leave time to build and check the brakes before Christmas morning.
Black Friday week. In 2026 Black Friday is Friday 27 November and Cyber Monday is Monday 30 November. That also leaves time for a size swap and assembly before Christmas Day.
Decathlon
