Frog Gravel 53

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SKU
L-FRG53
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Why buy Frog Gravel 53

Kids Gravel Bikes

Frog Gravel 53 | The ideal kids’ gravel bike for adventurous kids

Lightweight Confidence-boosting Easy handling Build to last

Discover the Frog Gravel 53 Kids Gravel Bike – a lightweight 20-inch adventure bike for children aged 5 to 7, built for gravel riding, cyclocross and off-road exploration with durable design and youth-specific gears.

Quick Specs

Age Range5-7 years
Wheel Size20" inch
Inside Leg49-64 cm
Weight8.65 kg
Gears9-speed

Looking for the perfect kids’ gravel bike for your child?

The Frog Gravel 53 is the perfect 20-inch kids’ gravel bike for young riders aged 5 to 7, designed for off-road exploration, gravel riding, cyclocross, and bike-packing. Lightweight and durable, it features knobbly tyres that offer superior grip and stability on various terrains. The kids’ gravel bike features child-friendly, narrow, short-drop handlebars for easy control, dual braking for added safety, and Frog’s patented cranks for efficient pedalling. With youth-specific 9-speed shifters and FrogFit Technology® for seamless gear changes, it ensures an optimal riding experience. Designed to inspire confidence and support skill development, the Frog Gravel 53 is the ideal choice for young adventurers eager to tackle rugged terrain.

A bike that grows with your child

The Frog Gravel 53 20-inch kids’ gravel bike is designed to grow with your child, featuring an adjustable handlebar height and tool-free seat post adjustment. As your young rider develops, the bike effortlessly adapts to ensure a perfect fit, offering long-lasting comfort and confidence. This makes it an ideal choice for young riders exploring gravel paths and mixed terrains, ensuring a smooth and secure cycling experience. The Frog Gravel 53 is suitable for children with an inside leg measurement of 49-64cm.

Frog 53 Kids Gravel Bike - Seatpost

Optimised for new gravel cyclists

The Frog Gravel 53 kids’ gravel bike is specifically built for children who are just starting gravel cycling. With narrow and short-drop child-specific handlebars, the bike ensures easy handling and control for smaller hands. Perfect for young riders getting used to gravel terrain, the bike’s lightweight aluminium frame and 20" knobbly tyres provide excellent grip and stability on rough surfaces, delivering a stable and responsive ride. These versatile tyres help kids build confidence while developing essential cycling skills

Frog 53 Kids Gravel Bike - Handlebars

Dual braking control for safety

Safety and performance are central to the design of the Frog Gravel 53. Equipped with high-performance disc brakes and dual braking control, the bike delivers reliable stopping power in all conditions. Child-specific Tektro brake levers, designed for smaller hands, ensure young riders can brake securely and easily. The responsive brakes not only enhance safety but also make it quick and easy to swap between gravel and road wheels. Combined with the bike’s stable geometry, these features provide excellent control and confidence, making the Frog Gravel 53 an ideal choice for your child's cycling journey.

Frog 53 Kids Gravel Bike - Brakes

Youth-specific 9-speed gear shifters

The Frog Gravel 53 kids’ gravel bike is built to handle a wide range of terrains, from rough trails to gravel paths. It features a cassette with a wide gear range (11-38T), giving young riders the extra power they need for steep climbs and tough off-road adventures, making it easy to conquer challenging terrain with confidence. Paired with youth-specific 9-speed gear shifters that use FrogFit Technology®, the bike makes gear changes smooth and easy for smaller hands. This carefully considered design not only helps children shift gears effortlessly but also boosts their confidence, independence, and control as they explore new and more demanding routes.

Frog 53 Kids Gravel Bike - Gears & Shifters

Adventure-ready mounts

The Frog Gravel 53 bike for kids offers multiple bottle cage mounts, allowing young riders to carry two or even three bottles on longer rides. With mounts on both fork legs, there's also plenty of space for attaching extra bottles, bags, or panniers, making it a great choice for longer-distance adventures.

Frog 53 Kids Gravel Bike - Versatile Mounts

Lightweight, easy to handle, and built for comfort

Weighing only 8.65kg*, the Frog Gravel 53 20-inch kids’ bike is incredibly lightweight, allowing young riders to easily handle the bike and build confidence as they ride. Equipped with patented Frog cranks, it offers smooth, efficient pedalling for a more comfortable and less tiring gravel cycling experience. This thoughtful design promotes strength and coordination, ensuring kids enjoy every ride while staying comfortable and having fun.

Sleek, road-ready design

Not only does the Frog Gravel 53 20-inch kids’ gravel bike deliver exceptional performance, but it also has a sleek, modern design that’s ready for adventure. With mounts on both fork legs, there's also plenty of space for attaching extra bottles, bags, or panniers, making it a great choice for longer-distance adventures. It’s designed to handle the rigours of gravel cycling while maintaining a stylish, gravel-ready look.

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 Gravel 53 kids’ bike comes fully equipped with everything your child needs for a safe and enjoyable ride. It includes reflectors for enhanced visibility, ensuring your young rider is seen in low-light conditions and improving overall safety. This children’s bike is equipped with 20-inch knobbly Kenda gravel tyres, specifically designed for superior grip and durability on gravel, dirt paths, and other off-road surfaces, ensuring a smooth, stable, and reliable ride. Additionally, the included bell adds an element of fun while ensuring safety, allowing your child to alert others as they ride.

How can I adapt this bike for road cycling?

If your child is also interested in road cycling, adapting the Frog Gravel 53 is simple. Just purchase the separately available Gravel 53 to Road 53 wheel conversion kit, which includes fully built front and rear wheels with slick road tyres, quick-release skewers, discs, and a new cassette (11-34T), allowing for an easy transition from gravel riding to road cycling. Thanks to the bike’s interchangeable wheelsets, switching between grippy gravel tyres to slick road tyres is quick and easy, with no adjustments needed - just swap and go!

*Weight without pedals.

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 (R)
Bike Weight 8.65Kg without pedals (8.98kg with pedals)
Frame 6061 T6 heat treated Aluminium alloy, seat tube 28cm (11")
Fork 6061 T6 heat treated Aluminium alloy with 3 x accessory bolts per side
Front Hub KT-XSF3, high performance aluminium disc hub, sealed cartridge bearings, QR, 24 hole, 6 bolt
Rear Hub KT-XS8R, high performance aluminium disc hub, sealed cartridge bearings, QR, 24 hole, 6 bolt
Cassette free wheel Microshift CS-H093, 11-38 Teeth - 9 Speed - Black
Rim KT-DS18 Aluminium, 20", double wall, disc-specific
Seat Clamp Aluminium, QR
Headset Neco, 1"1/8 semi-integrated threadless with sealed cartridge bearings, aluminium Frog Bikes top cap
Stem Aluminium, 1"1/8, 38mm, 4 bolt clamp
Grips/Bar Tape Black bar tape
Brakes (F&R) Tektro Mira, Mechanical Disc calliper MD-C400 with Tektro TR160-52 rotors 160mm/160mm
Tyres Kenda K-1047, 20"x1.5", knobbly off road, (ETRTO/ISO 40-406)
Accessories Included Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters, frame protector patches
Crankset/Chainring Frog Bikes Patented,114mm, Aluminium straight arm cranks, 32T chainring, black
Bottom Bracket Neco, square taper, 68/107.5, cartridge bearings
Pedals Frog Bikes, eco-friendly rice husk & plastic composite, with reflectors, 9/16"
Chain KMC X9, 9-speed
Handlebar 6061 Aluminium, custom drop bar, 340mm
Brake Levers Integrated to gear shifters & Tektro RL570 auxillary levers
Saddle Frog Bikes, child specific slimline saddle (medium), steel rails
Seat Post Aluminium, micro adjust, 27.2mm
Gear Shifter Microshift Advent - SB-M090(S)
Rear Derailleur Microshift Advent - Short Cage - 9 speed - RD-M6195S
More Information
Product geometry diagram
Bike geometry chart with frame measurements
A - Wheelbase (mm) 850
B - Seat Tube Angle (°) 74
C - Head Tube Angle (°) 71
D - Effective Top Tube (mm) 440
E - Head Tube Length (mm) 100
F - Chain Stay Length (mm) 360
G - Seat Tube Length (mm) 280
H - Bottom Bracket to Floor (mm) 220
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