Rookie 18 Balance Bike

£275.00

The Rookie 18 the largest convertible bike for older children, ages 5–8+ (inseam 48–71 cm). Learn to balance first, then fit the included pedal kit to turn it into a lightweight pedal bike.

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Estimated delivery dates: Friday 16. October - Monday 19. October
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Benefits of Rookie 18 Balance Bike

Age Range

5, 6, 7 or 8 years old

Bike weight

5.5 Kg as a balance Bike
7.1 Kg as a pedal Bike

Ability

Beginner or ready to add pedals

Recommended Rider Inseam

48 - 71 cm inseam

Easy Assembly

Allen keys supplied

Wheel size

18” Alloy

Specifications

For the Rookie 18 Balance Bike
The Rookie 18 is for

Older Beginners Aged Approximately 5–8 Years

Start with the footrest fitted so your child can focus on balancing, steering, braking and controlling their speed. When your child is ready to try pedalling, the bike converts into a super lightweight pedal bike with the included pedal kit, allowing your child as much time as they need to master balance first, before progressing to pedals.

Because children learn to pedal on the same familiar bike, they do not have to adjust to a different frame, riding position or handling. That familiarity can reduce anxiety, build confidence and make the transition to independent cycling feel much more manageable.

The Rookie 18 is particularly helpful for older beginners and children who need longer to develop their coordination or confidence. Children with SEND such as dyspraxia, autism, ADHD, developmental delays tend to start learning to ride a bike later than their peers, and as such this larger convertible balance bike gives them the opportunity to learn to ride.

Age is only a guide. Check our kids’ bike size guide to measure your child’s inseam and confirm it falls within the Rookie 18’s 48–71 cm fit range.

Not sure whether your child is too old to start with a balance bike? Our Balance Bike Age Guide covers balance bikes for children aged 5–8 years.

Rookie 18 Balance Bike Features

Why Choose the Rookie 18 Balance Bike?

Using a convertible balance bike allows your child to learn to ride, at their own pace. Leave the pedal kit off while your child practises coasting, steering and stopping. Once they are comfortable and balance has been improved, you can fit the pedal kit and importantly, as no child is the same, you can easily take it off again if they need more time in balance mode.

At only 5.5 kg in balance-bike mode and 7.1 kg with the pedal kit fitted, the Rookie 18 remains light enough for children to handle and control. Every detail has been designed to give bigger, growing riders a stable, comfortable and confidence-building way to learn.

FeatureHow it helps your child
Removable footrestProvides a comfortable place for your child’s feet while coasting. Its slim shape helps prevent ankle bumps and it can be removed when you are ready to fit the pedals.
Pedal kit includedConverts the Rookie 18 from a balance bike into a lightweight pedal bike in minutes. The tools are included and there is no need to remove the wheels or rebuild the bike.
Lightweight 18-inch alloy wheelsStrong alloy rims, smooth-running Joytech hubs and sealed bearings help the bike roll freely, making it easier for children to build speed and maintain momentum.
Lock-on grips for smaller handsSoft-touch, child-sized grips provide a comfortable and secure hold. They remain firmly in position and can be replaced using a standard Allen key.
Fits a 48–71 cm inseamThe generous adjustment range provides a comfortable fit for taller and growing riders, with enough knee bend for effective balancing and pedalling.
Adjustable as your child growsThe saddle and handlebars can be adjusted to suit different heights, helping the Rookie 18 provide a comfortable fit throughout the balance and pedal stages.
Child-shaped padded saddleThe saddle is shaped for children’s narrower hips, providing comfortable support while balancing, coasting and pedalling.
Secure fixed seat clampThe Allen-key seat clamp prevents accidental adjustment and supports the bike’s compliance with pedal-bike safety requirements.
Longer 805 mm wheelbaseThe extended wheelbase gives taller riders more room and creates stable, predictable handling while they develop their balance and control.
Smooth, responsive steeringA durable 1⅛-inch threadless headset and 50 mm alloy stem provide smooth steering and reliable control without relying on plastic components.
Front and rear V-brakesLightweight aluminium V-brakes help children learn to control their speed. The short-reach, adjustable levers are designed for smaller hands.
Protected internal brake cablesThe brake cables run neatly through the frame, protecting them from everyday knocks and falls while keeping the bike’s appearance tidy. They remain replaceable when servicing is required.
What is the Rookie 18 made from?

The Rookie 18 is made from lightweight, durable materials selected to withstand everyday family life while remaining manageable for an older child learning to ride.

Material or componentWhy we chose it
6061 heat-treated aluminium frameStrong, lightweight and naturally resistant to rust, helping to keep this larger bike easy for children to control.
Double-painted, lacquered finishTwo layers of paint and a protective lacquer help the frame withstand scratches, scuffs and the occasional tumble.
Aluminium and Chromoly forkLightweight aluminium fork blades are paired with a strong Chromoly steel steerer tube. The 30 mm rake contributes to stable, responsive steering.
18 × 2.0-inch pneumatic tyresPremium Innova Compass Lite BMX tyres provide reliable grip, smooth rolling and air-cushioned comfort on paths, playgrounds and other everyday surfaces.
Black stainless-steel spokesStrong, durable and resistant to corrosion, the spokes are made to cope with regular riding and everyday bumps.
SaddleComfortable, shaped saddle designed for children’s hip spacing. Useful as a carry handle.
Child-sized 115 mm cranksThe crank length provides efficient pedalling for taller children while maintaining useful ground clearance and comfortable leg movement.
Safety-tested constructionThe Rookie 18 is tested to meet EN 71-1, EN 71-2 and EN 71-3 in balance-bike mode and ISO 8098:2014 in pedal-bike mode.

Lightweight Without Cutting Corners

From its aluminium frame and wheels to its sealed bearings and air-filled tyres, every part of the Rookie 18 has been carefully selected to keep this larger balance bike lightweight, durable and comfortable to ride.

It provides older beginners with more growing room and the stability they need to learn to ride, without the excessive weight often found on larger children’s bikes.

Balance Bike Mode

The Rookie 18 weighs just 5.5 kg in balance-bike mode, making it easy for an older beginner to handle, steer and pick up after a tumble.

With the pedals, cranks and chain removed, your child can concentrate on balance, braking and controlling an 18-inch bike. They are normally ready for the pedal kit when they can coast for sustained periods with their feet raised, steer confidently and stop using the brakes without putting their feet down.

Children can stay in balance-bike mode for as long as they need. There is no deadline and no pressure to introduce pedals before they feel ready.

Pedal Bike Mode

When your child is ready, the included pedal kit converts the Rookie 18 into a lightweight 18-inch pedal bike.

The kit can be fitted using the Allen keys supplied, without removing either wheel or rebuilding the bike. At only 7.1 kg in pedal mode, the Rookie 18 remains light enough for children to start, steer and pedal efficiently.

Because the frame, wheels, saddle position and handling remain familiar, your child can concentrate on learning to pedal rather than adapting to an entirely different bike.

Child riding a red Kidvelo Rookie 18 in pedal bike mode during Cycle Sprog testing

Tried, Tested and Recommended by Cycle Sprog

Cycle Sprog followed autistic rider Edie’s progress on the Rookie 18 for two and a half years, from her first tentative rides in balance-bike mode to confidently pedalling longer distances.

Starting without pedals gave Edie time to learn balance, steering and braking at her own pace. Once she was confidently coasting with her feet raised, the pedal kit was fitted. She was soon pedalling independently and braking smoothly on the same familiar bike.

The long-term review also found that:

  • The lightweight frame made the bike easy for Edie to move and manoeuvre herself.
  • Its wide pneumatic tyres provided a comfortable, smooth ride.
  • The balance-to-pedal design supported a gradual, confidence-building transition.
  • After regular use on grass, concrete paths and sand, the bike had no rust or structural damage.
  • Edie continued riding it until she was nine and a half, beyond its suggested age range.

Cycle Sprog awarded the Rookie 18 5/5 for quality, weight and value for money, describing it as:

“A well designed, confidence-inspiring bike” that provides a “smooth, unrushed journey into learning to pedal.”

Description

One Bike for Learning to Balance and Pedal

The Rookie 18 is a convertible balance-to-pedal bike created specifically for older and taller children. It allows them to learn balance, steering and braking first, before progressing to pedals on the same familiar frame.

This approach suits any older beginner, but it can be especially valuable for children who need more time, reassurance, or repetition to develop coordination. You can learn more about choosing bikes for children with SEND in our guide.

Buying one bike for both stages can also avoid the cost and disruption of replacing a large balance bike with a separate lightweight pedal bike.

We sell directly to families, helping us keep our convertible bikes as affordable as possible without compromising components or build quality. If you need help choosing the right size, setting the bike up or deciding when to fit the pedals, you will receive friendly support directly from the Kidvelo team.

For added peace of mind, every Rookie 18 comes with our 30-day, no-quibble money-back guarantee and a lifetime warranty on the frame and forks.

The Rookie 18 uses air-filled tyres with Schrader valves—the same type used on car tyres. You will need a bike pump suitable for Schrader valves to keep them correctly inflated.

Need help choosing? Our Complete Balance Bike Guide covers everything parents need to know, or use our Kids Bike Size Guide to find the right fit.

Rookie 18 inch balance bike geometry infographic

Additional information

WeightN/A
DimensionsN/A
Colour

Green, Blue, Red, Pink

SKU: KVR18-01 Category: Brand: Kidvelo Brand:

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