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First Pedal Bikes

Frog 47 | Best 18-inch bike for young riders

RobustEasy to HandleSkill BuildingAdapts as they grow

The Frog 47 is the perfect next step for children who are ready to upgrade from smaller bikes. This premium 18-inch kids' bike is built for 4- to 6-year-olds, combining a light aluminium frame with high-quality, child-specific components to make riding smoother, easier, and more fun.

Quick Specs

Age Range4-6 years

Wheel Size18" inch

Inside Leg43-59 cm

Weight6.75 kg

GearsSingle-speed

Ready to upgrade your child to an 18-inch pedal bike?

The Frog 47 is the perfect next step for children who are ready to upgrade from smaller bikes. This premium 18-inch kids' bike is built for 4- to 6-year-olds, combining a light aluminium frame with high-quality, child-specific components to make riding smoother, easier, and more fun. With an adjustable handlebar height and quick-release seat post, the Frog 47 adapts as your child grows, meaning you won't need to size up too soon. From cycling to school and exploring park paths to weekend family adventures, this lightweight bike helps young riders develop balance, coordination, and lifelong cycling confidence. The Frog 47 is suitable for children with an inside leg measurement of 43-59cm.

Built to grow alongside your child

The Frog 47 kids' first pedal bike is fully adjustable to keep pace with your child's growth spurts. The tool-free quick-release seat post and adjustable handlebars mean you can fine-tune the fit in seconds, ensuring comfort, control, and proper riding posture as children get taller.

Effortless pedalling with patented cranks

Specially designed patented cranks (made using 75% recycled aluminium) reduce the distance between the pedals on this 18-inch first pedal bike, making riding more efficient and less tiring for little legs. This unique design helps children pedal smoothly, improve coordination, and enjoy longer rides without fatigue.

Lightweight for easy handling

Weighing just 6.75kg, the Frog 47 is one of the lightest 18-inch kids' bikes on the market. Children can lift, push, and manoeuvre it with ease, while parents will love how simple it is to carry or load into the car. The robust aluminium frame (made using 30% recycled aluminium) is built for years of adventures without weighing riders down.

Safety-first design

The Frog 47 18-inch kids' bike comes with child-friendly brake levers sized for small hands, a responsive braking system, and a stable frame geometry that keeps riders balanced. Chunky handlebar grips give extra control, while the enclosed chainguard protects clothing and fingers.

Convert to a balance bike

Not quite ready for pedals? Remove them to turn the Frog 47 18-inch first pedal bike into a balance bike, helping your child build core cycling skills at their own pace before transitioning back to full pedalling.

Built for safety, trusted by parents

Every Frog bike is rigorously tested to exceed international safety standards - because nothing matters more than your child's safety.

Ready to ride - What's included?

The Frog 47 kids' first pedal bike comes equipped with essential safety features and practical kids' bike accessories, including reflectors for improved visibility, durable mudguards (valued at £28) to keep clothes clean, and a bell for added fun on every ride. While a kickstand isn't included, it's available separately, giving you the flexibility to add extra convenience to your child's first pedal bike experience.

Frog 47

SKU: 364115376135191
£400.00Price
Color
Quantity
  • Product Safety Certifications ISO 4210-2C and CPSC 1512 (CFR 1512)
    Bike Weight 6.75kg (incl pedals)
    Frame 6061 T6 heat treated Aluminium alloy, seat tube 255mm
    Fork 6061 T6 heat treated aluminium alloy
    Front Hub Quando, aluminium, sealed hub, 5mm allen bolt internal fixing, 16 hole
    Rear Hub Quando, aluminium, sealed hub, standard freewheel thread and 5mm allen bolt internal fixing, 16 hole, drive side chain tensioner
    Cassette free wheel ATA, standard ISO thread, 18t, 4 prong removal, chrome plated/brown
    Rim Aluminium, 18", double wall, machined braking surface
    Seat Clamp Aluminium, Quick Release
    Headset Neco, 1"1/8 , threadless, safety steering stop, Frog Bikes top cap
    Stem Aluminium, 1"1/8, 38mm, 4 bolt clamp
    Grips/Bar Tape Frog Bikes specific, lock on, slim grips
    Brakes (F&R) Tektro 836AL, Aluminium, linear pull
    Tyres Kenda K1047, 16"x1.5", Hybrid, (ETRTO/ISO: 38-305)
    Mudguards Resin, black
    Accessories Included Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters, frame protector patches
    Crankset/Chainring Frog Bikes Patented, 102mm, Aluminium straight arm cranks, 32T chainring, Black
    Bottom Bracket Thun, square taper, 68/107.5, cartridge bearings
    Pedals Resin platform, 9/16" thread, w/reflectors
    Chain KMC, single speed
    Handlebar Aluminium, 30mm riser bar, 440mm
    Brake Levers Tektro JL510, Aluminium, easy reach
    Saddle Frog Bikes child-specific saddle (small), steel rails
    Freewheel/Fixed Wheel ATA, standard ISO thread, 18t, 4 prong removal, chrome plated
    Seat Post Aluminium, micro adjust, 255mm
  • A - Wheelbase (mm) 770
    B - Seat Tube Angle (°) 74
    C - Head Tube Angle (°) 74
    D - Effective Top Tube (mm) 415
    E - Head Tube Length (mm) 100
    F - Chain Stay Length (mm) 315
    G - Seat Tube Length (mm) 255
    H - Bottom Bracket to Floor (mm) 190

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