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Discover the Frog Gravel 53 - 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.
Discover the Frog Gravel 53 - 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.
Frog Bikes

Frog Gravel 53 Kids Gravel Bike 2026 in Electric Blue

£705.00
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We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

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Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Frog Gravel 53 Kids Gravel Bike 2026 in Electric Blue

Season:2026

Brand:Frog Bikes

Code:L-FRG53 : L-FRG53-EBL

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.

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

Lightweight, easy to handle, and built for comfort
Weighing just 8.56kg*, the Frog Road 53 kids’ road bike is lightweight and easy for children to manoeuvre, making it simple for them to gain confidence as they cycle. The bike features patented Frog cranks, designed for comfortable and efficient pedalling. This innovative design ensures that cycling is smoother and less tiring for young legs, helping kids build strength, coordination, and improve their road cycling skills in a fun way.

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.

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.

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 Road Wheel 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!

Click here to see the conversion kit

Key Features & Benefits:

  • Adventure-ready mounts: The Frog Gravel 53 offers 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.
  • 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. 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

Full Specification:

  • 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
  • Number of Gears: 9
  • Gear Shifters: Microshift Advent - SB-M090(S)
  • Chainset: Frog Bikes Patented,114mm, Aluminium straight arm cranks, 32T chainring, black
  • Chainrings: 32T
  • Rear Cassette: Microshift CS-H093, 11-38 Teeth - 9 Speed - Black
  • Chain: KMC X9, 9-speed
  • Front Derailleur: N/A
  • Rear Derailleur: Microshift Advent - Short Cage - 9 speed - RD-M6195S
  • Bottom Bracket: Neco, square taper, 68/107.5, cartridge bearings
  • Pedals: Frog Bikes, eco-friendly rice husk & plastic composite, with reflectors, 9/16"
  • Rims: KT-DS18 Aluminium, 20", double wall, disc-specific
  • 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
  • Front Tyre: Kenda K-1047, 20"x1.5", knobbly off road, (ETRTO/ISO 40-406)
  • Rear Tyre: Kenda K-1047, 20"x1.5", knobbly off road, (ETRTO/ISO 40-406)
  • Brakes: Tektro Mira, Mechanical Disc calliper MD-C400 with Tektro TR160-52 rotors 160mm/160mm. Integrated to gear shifters & Tektro RL570 auxillary levers
  • Handlebars: 6061 Aluminium, custom drop bar, 340mm
  • Handlebar Grips or Tape: Black bar tape
  • Stem: Aluminium, 1"1/8, 38mm, 4 bolt clamp
  • Saddle: Frog Bikes, child specific slimline saddle (medium), steel rails
  • Seatpost: Aluminium, micro adjust, 27.2mm
  • Accessories: Bell, bike reflectors white/red, wheel reflectors orange/white, paint plasters, frame protector patches
  • Weight: 8.65Kg without pedals (8.89kg with pedals)
  • Inside Leg or Age Range: 5-7 Years

Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.

Sizing Chart for Frog Kids Bike

Frog bikes are sized by leg length rather than age, as this is the most reliable way of getting the right size of bike for each child.

Frog Bike ModelBeginner Minimum Inseam (cm)Confident Minimum Inseam (cm)Maximum Inseam (cm)Recommended Age*Wheel Size*Frame Size*
First Pedal Bikes
Frog 3838cm (15")36cm (14")41cm (16")3 - 414"9"
Frog 4444cm (17")40cm (16")53cm (21")4 - 516"9.5"
Frog 4747cm (18")43cm (17")59cm (23")4 - 618"9.5"
Hybrid Bikes
Frog 5353cm (21")50cm (20")65cm (26")5 - 720"11"
Frog 6161cm (24")57cm (22")74cm (29")8 - 1024"12"
Frog 6767cm (26")63cm (25")76cm (30")10 - 1226"14"
Frog 7474cm (29")69cm (27")91cm (36")12 - 1426"18"
City Bikes
Frog City 5353cm (21")49cm (19")65cm (26")5 - 720"11"
Frog City 6161cm (24")57cm (22")74cm (29")8 - 1024"12"
Frog City 6767cm (26")63cm (25")81cm (32")10 - 1226"14"
Mountain Bikes (MTB)
Frog MTB 6262cm (24")58cm (23")70cm (28")8 - 1024"12.5"
Frog MTB 6969cm (27")63cm (25")75cm (30")10 - 1226"15"
New Road/Gravel
Road/Gravel 5353cm (21")50cm (20")64cm (25")5 - 720"
Road/Gravel 6161cm (24")58cm (23")74cm (29")8 - 1024"
Road/Gravel 6767cm (26")63cm (25")86cm (34")10 - 1326"
Road Bikes (rim brake)
Frog Road 5858cm (23")52cm (20")63cm (25")6 - 720"11"
Frog Road 6767cm (26")62cm (24")74cm (29")8 - 1224"14"
Frog Road 7070cm (28")67cm (26")84cm (33")11 - 1426"17"
Track Bikes
Frog Track 5858cm (23")52cm (20")63cm (25")6 - 720"11"
Frog Track 6767cm (26")62cm (24")74cm (29")8 - 1224"14"
Frog Track 7070cm (28")67cm (26")84cm (33")11 - 1426"17"


Warranty Information for Frog:

Frog Bikes' offer a standard warranty for 2 years on all frames, forks, parts & paintwork. Suspension forks come with a standard warranty of 2 years and are not included in the Warranty Plus offer.
Frog offer a FREE extended warranty of 10 years on frames, handlebars, stems, seat posts, cranks and forks (excluding the suspension forks on MTBs) if you complete and submit the Warranty Plus application form within 28 days of purchase. This extended warranty is non-transferable.
For full warranty policy please visit frogbikes.co.uk

Sizing Information

Sizing Chart for Frog Kids Bike

Frog bikes are sized by leg length rather than age, as this is the most reliable way of getting the right size of bike for each child.


Current ModelsMinimum Recommended inside leg in cm (inches)Maximum Recommended inside leg in cm (inches)Approx ageWheel SizeFrame Size
Tadpole Mini23cm (9")31cm (12")1-210"
Tadpole31cm (12")38cm (15")2-312"
Tadpole Plus36cm(14")44cm(17")3-414"
Frog 4036cm(14")43cm(17")3-414"9"
Frog 4440cm(16")51cm(20")4-516"9.5"
Frog 4743cm(17")54cm(21")4-618"9.5"
Frog 5350cm(20")62cm(24")5-720"11"
Frog 6157cm(22")74cm(29")8-1024"12"
Frog 6257cm(22")65cm(26")8-1024"12"
Frog 6963cm(25")70cm(27")10-1226"14"
Frog 7367cm(26")76cm(30")12-1426"16"
Frog 7872cm (28")83cm (33")13+26"18"
Frog City 5353cm(21")62cm(24")5-720"11"
Frog City 6161cm(24")70cm(27")8-1024"12"
Frog City 6767cm (26")76cm (30")10-1226"14"
Frog Road/Track 5852cm(20")59cm(23")6-720"11"
Frog Road/Track 6762cm(24")70cm(28")8-1224"14"
Frog Road/Track 7067cm(26")79cm(31")11-1426"17"
Frog MTB 6258cm (23")65cm (26")8-1024"12.5"
Frog MTB 6963cm (25")70cm (28")10-1226"15"
Frog MTB 7266cm (26")81cm (32")13+26"16"
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