Frog 47

From US$615.00
In stock
Only %1 left
SKU
L-FH47
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Why buy Frog 47

First Pedal Bikes

Frog 47 | Best 18-inch bike for young riders

Robust Easy to Handle Skill Building Adapts 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.

Frog 47 Kids First Pedal Bike - Adjustable Seatpost

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.

Frog 47 Kids First Pedal Bike - Patented Cranks

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.

Frog 47 Kids First Pedal Bike - Lightweight Frame

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.

Frog 47 Kids First Pedal Bike - Safety Brakes

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.

Bike assembly – Quick & easy setup

Your Frog bike arrives 95% pre-assembled to ensure safe delivery and a hassle-free setup experience. Only a few simple steps are needed to get your child’s new bike ready to ride:

Assembly steps:

  • Align and secure the handlebars (pre-positioned for transit)
  • Attach the pedals (packaged separately for safety)

Tools included:

  • 5mm and 6mm hex keys (allen wrenches)
  • 15mm open-end spanner

In the box

  • Instruction manual
  • Bell for fun
  • Reflectors

Toolkit included!

95% pre-build, pre‑aligned components and included tools mean less time wrenching, more time riding.

Protect their bike with warranty cover

Ride worry‑free with comprehensive coverage and optional extended protection.

2 Year Standard Warranty

Free warranty on all bikes

At Frog Bikes, we stand by the quality of our products with a standard 2-year warranty covering all frames, forks, parts, and paintwork (excluding tyres and inner tubes). Suspension forks are also covered by a 2-year warranty but are not included in our extended warranty offer.

Warranty Plus

Free upgrade to 10‑year cover

Looking for extra peace of mind? We offer a FREE 10-year extended consumer warranty on frames and forks (excluding MTB suspension forks) when you complete and submit our Warranty Plus application within 28 days of purchase.

This frog bikes extended warranty is available for new, full-priced bikes and bikes purchased directly from our Frog Factory Outlet. For full details, please visit the Frog Bikes Warranty Plus application page below.

  • FREE 10-year frame & fork cover
  • Simple online activation
  • Extended peace of mind
  • Backed by Frog expertise

Note: The Warranty Plus offer is non-transferable.

Assembled, checked & delivered with care

Your Frog bike is built, inspected, and delivered to your door with free standard delivery to mainland UK addresses.

Free delivery

Free standard delivery is available for UK consumer orders shipping to mainland UK addresses.*

Arrives pre‑assembled

All Frog kids' bikes are carefully assembled, quality-checked, and typically dispatched within 5 business days of order confirmation.

Packaged with care

Our packaging is 82% recycled, 100% recyclable, and virtually plastic-free.

*For deliveries to non-mainland UK addresses, such as Northern Ireland, the Isle of Man, the Channel Islands, or the Scottish Highlands and Islands, additional local taxes, customs fees, or carrier surcharges may apply. These charges are the responsibility of the customer.

We're here to help

We want you to have the best experience with your new Frog Bike, so our customer service team are only a click or call away!

Need help? We're here for you

Our friendly and knowledgeable customer support team is ready to assist you with anything you need, from order updates and product questions to assembly guidance and warranty information. We're here to make your experience smooth and stress-free.

Get in touch via email or phone, and we’ll be happy to help!

Got questions?

Before reaching out, check out our Frequently Asked Questions (FAQ) page; it’s the quickest way to find clear, helpful answers to common queries. From choosing the right bike size and understanding delivery times to assembly tips and warranty info, we’ve covered all the essentials.

If you can't find what you're looking for, our support team is always just a click away.

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
More Information
AWheelbase (mm)770
BSeatube Angle (Degrees)74
CHead tube angle (degrees)71
DEffective top tube (mm)415
EHead tube length (mm)100
FChain stay length (mm)315
GSeat tube Length255
HBB to Floor (mm)190
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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