The Frog 53 kids' hybrid bike is one of Frog's smallest bikes with gears, designed for young riders who want a versatile, reliable bike for all kinds of adventures. Lightweight and durable, this 20-inch kids' bike handles smoothly on pavement, park paths, and light off-road trails, giving kids the freedom to explore safely and confidently.
Frog 53
Why buy Frog 53
Kids Hybrid Bikes
Frog 53 | 20-inch kids' hybrid bike
Looking for a versatile, geared bike for your young rider?
The Frog 53 kids' hybrid bike is one of Frog's smallest bikes with gears, designed for young riders who want a versatile, reliable bike for all kinds of adventures. Lightweight and durable, this 20-inch kids' bike handles smoothly on pavement, park paths, and light off-road trails, giving kids the freedom to explore safely and confidently. Built to grow with your child, the Frog 53 combines comfort, performance, and style, making it the perfect all-terrain, geared bike for everyday rides and weekend adventures. The Frog 53 is suitable for children with an inside leg measurement of 50-65cm.
Multi-purpose kids' bike that grows with your child
The Frog 53 20-inch hybrid bike is ideal for children aged 5 to 7 years, offering a versatile design perfect for roads, pavements, towpaths, and light forest trails. Designed to grow with your child, the bike features an adjustable handlebar (40mm range) and quick-release, child-specific saddle, ensuring a perfect riding position as your young rider gets taller.

Efficient pedalling with 8-speed gears
Equipped with FrogFit Technology® 8-speed gear shifters, the Frog 53 kids' hybrid bike makes changing gears effortless. Combined with patented Frog cranks (made using 75% recycled aluminium) that reduce the distance between pedals, this system provides efficient, comfortable pedalling, helping children build strength, coordination, and confidence on longer rides. The pedals are made from durable rice husks, using 50% less plastic without compromising strength, making the bike both eco-friendly and robust.

Lightweight aluminium frame
Weighing just 8.15kg, the 20-inch Frog 53 is a lightweight yet robust kids' hybrid bike. Its premium aluminium frame (made using 30% recycled aluminium) makes it easy for children to manoeuvre, while the lower bracket position and optimised frame geometry offer a safer, more ergonomic ride that accommodates growing legs.

Safe and confident riding
Safety is a top priority on the Frog 53 20-inch hybrid bike. It comes with Tektro brakes and small, easy-to-reach levers designed specifically for young hands, providing children with better control and confidence. Kenda small-block eight tyres offer maximum stability and grip across different surfaces, while full-length mudguards keep clothes clean.

Practical and versatile design
The Frog 53 kids' hybrid bike is built for versatility and everyday use. It has a mount for a kickstand to be added, and the option to attach a pannier rack for carrying school books or sports equipment. The sleek chainguard protects little fingers, while the bike's durable components and FrogFit design ensure it grows with your child, offering long-term performance and comfort.

Perfect for transitioning from first pedal bikes
When moving up from a smaller pedal bike, the Frog 53 20-inch hybrid bike provides an easy, confident transition. Its lightweight frame, adjustable components, and 8-speed gears make longer rides effortless, encouraging independence and a love of cycling.
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 53 kids' hybrid bike comes with essential safety features and practical kids' accessories, including reflectors for improved visibility, mudguards (£28 value) to keep clothes clean, and a bell to alert others as kids ride.
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
Protect their bike with warranty cover
Ride worry‑free with comprehensive coverage and optional extended protection.
2 Year Standard Warranty
Free warranty on all bikesAt 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 coverLooking 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 and CPSC 1512 (CFR 1512) |
|---|---|
| Bike Weight | 8.15kg (incl pedals) |
| Frame | 6061 T6 heat treated Aluminum alloy, seat tube 11" (280mm) |
| Fork | 6061 T6 heat treated aluminium alloy |
| Front Hub | Quando, Aluminum, sealed hub, Quick Release, 20 hole |
| Rear Hub | Quando, Aluminum, sealed hub, Quick Release, 20 hole, Shimano type 8/9spd free hub body |
| Cassette free wheel | 8-speed, 11-32t |
| Rim | Aluminium, 20", double wall, machined braking surface |
| Seat Clamp | Aluminium, Quick Release |
| Headset | Neco, 1"1/8 semi-integrated threadless, 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, Aluminum, linear pull |
| Tyres | Kenda K1047, 20"x1.5", Hybrid, (ETRTO/ISO 38-406) |
| Mudguards | Full length, resin, black |
| Accessories Included | Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters, frame protector patches |
| Crankset/Chainring | Frog Bikes Patented,114mm, Aluminum straight arm cranks, 32T chainring, black |
| Bottom Bracket | Thun Shorty-ML-SL; square taper, 68/108/107.5 |
| Pedals | Frog Bikes, eco-friendly rice husk & plastic composite, with reflectors, 9/16" |
| Chain | KMC, 8-speed |
| Handlebar | Aluminium, flat bar, 460mm |
| Brake Levers | Tektro JL510, aluminium, easy reach |
| Saddle | Frog Bikes child-specific saddle (small), steel rails |
| Seat Post | Aluminium, micro adjust, 27.2mm |
| Gear Shifter | FrogFitTechnology®️ youth-specific 8-speed with short lever travel and ultraslick gear cable |
| Rear Derailleur | Shimano Altus, M310, 8-speed |
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| A - Wheelbase (mm) | 848 | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B - Seat Tube Angle (°) | 74 | |||||||||||||||||||||||
| C - Head Tube Angle (°) | 74 | |||||||||||||||||||||||
| D - Effective Top Tube (mm) | 440 | |||||||||||||||||||||||
| E - Head Tube Length (mm) | 100 | |||||||||||||||||||||||
| F - Chain Stay Length (mm) | 361 | |||||||||||||||||||||||
| G - Seat Tube Length (mm) | 280 | |||||||||||||||||||||||
| H - Bottom Bracket to Floor (mm) | 216 |