Kids' Bicycles

When choosing an appropriate bike for your child, you should always make sure it is the right size. The size is crucial for the child to be able to control the bike properly.

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The table below shows the values that will help you decide. Individual brands vary, so please consider the values in the table only as a guidance. To be sure, put the child astride above the top tube with the feet on the ground. The gap between the crotch and the tube frame should be about 5 cm. Always set the saddle height so that the child can reach the ground.

Also observe the correct seating position of the child. The child should not be stretching on the bike and handlebars should not be too high. The ideal height of the handlebars is at the waist level of the child. Underestimating these factors can lead to bad riding habits.

Children's bicycle sizes are numbered slightly differently than the ones for adults (seat tube length) and are measured according to the wheel diameter.

Size in inches (diameter)	Child's height in cm	Approximate age of the child
12 "	90-100	2-3 years
14 "	95-105	3-4 years
16 "	100-115	45 years
18 "	110-120	5-6 years
20 "	115-130	6-9 years
24 "	125-155	9-12 years

AUTHOR Record 20 2025 10" White/Silver/Red

419.99 €

In stock > 5 pcs

2 colors

Children's Bike - city bike 20" wheel from the age of 4 years, without suspension, meant for recreational use, aluminium frame, frame height: 254mm, frame size: XS, light weight,...

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AUTHOR Record 16 2025 9" Lime/Blue

335.89 €

In stock 5 pcs

3 colors

Children's Bike - city bike 16" wheel from the age of 3 years, without suspension, meant for recreational use, aluminium frame, frame height: 229mm, frame size: XS, with Plain...

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Free delivery
to Alza branch

ACADEMY S-GRADE Trail 4 Amber

915.90 € New 949 €

Unsealed - in stock 1 pcs

Children's Bike - mountain bike 20" wheel from the age of 6 years, front suspension fork, meant for sports use, aluminium frame, frame height: 240mm, with Plain theme, for...

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Volare Barbie 12", pink CB

114.90 € New 125.33 €

Unsealed - in stock 1 pcs

Children's Bike - city bike 12" wheel, for girls, without suspension, meant for recreational use, steel frame, frame height: 200mm, for beginners, balance wheels and mudguard, for...

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Joiride ultra light 24" medová/černá

2×

410.90 € New 427.90 €

Unsealed - in stock 1 pcs

2 sizes

Buy with code ALZADNI25 308.18 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 25% s kódom ALZADNI25. Kliknite a kód sa uplatní automaticky.

Children's Bike - city bike 24" wheel from the age of 10 years, without suspension, meant for recreational use, aluminium frame, frame size: M, pedals included, for children...

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ACADEMY S-GRADE Trail 4 R Space

590.90 € New 799 €

As good as new - in stock 1 pcs

Children's Bike - mountain bike from the age of 6 years, front suspension fork, aluminium frame

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Academy Grade 3 16-1S belt Yellow

2×

339.90 € New 449 €

As good as new - in stock 1 pcs

Children's Bike - city bike 16" wheel from the age of 4 years, without suspension, aluminium frame, frame height: 26mm, for children weighing up to 30kg

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Children's Bike - city bike 12" wheel from the age of 2 years, without suspension, meant for recreational use, steel frame, frame size: S, pedals included and balance wheels, for...

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Dino Bikes Unicorn 16"

22×

118.90 € Save 4.10 €

In stock > 5 pcs at the supplier's

Children's Bike - city bike 16" wheel, for girls from the age of 4 years, without suspension, meant for recreational use, steel frame, with Unicorn theme, freewheel, for beginners,...

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Dino Bikes R88 14"

30×

110.74 € Save 8.26 €

In stock > 5 pcs at the supplier's

Children's Bike - city bike 14 " wheel, for boys from the age of 3 years, without suspension, meant for recreational use, steel frame, with Plain theme, freewheel, pedals...

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Dino Bikes Unicorn 12"

15×

83.12 € Save 5.01 €

In stock > 5 pcs at the supplier's

Children's Bike - city bike from the age of 2 years, without suspension, steel frame, frame height: 304,8mm, with Unicorn theme, for children weighing up to 40kg

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Dino Bikes MTB white 20"

15×

182.16 € Save 17.84 €

In stock > 5 pcs at the supplier's

Children's Bike - mountain bike 20" wheel from the age of 7 years, without suspension, meant for recreational use, steel frame, frame size: S, freewheel, pedals included, for...

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Dino Bikes Paw Patrol 12"

3×

102.32 € Save 7.18 €

In stock > 5 pcs

2 sizes

Children's Bike - city bike 12" wheel from the age of 3 years, without suspension, meant for recreational use, steel frame, with PAW Patrol theme, for beginners, balance wheels,...

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Dino Bikes 204RU 20"

9×

181.74 €

In stock > 5 pcs at the supplier's

2 colors

Children's Bike - city bike 20" wheel, for girls from the age of 6 years, without suspension, meant for recreational use, steel frame, for beginners, pedals included and with...

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Dino Bikes Cars 12"

2×

100.26 € Save 38.74 €

In stock 3 pcs at the supplier's

Children's Bike - city bike 12" wheel, for boys from the age of 2 years, without suspension, meant for recreational use, steel frame, with Cars theme, for beginners, for children...

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Academy Grade 3 16-1S Red

9×

429 €

In stock 5 pcs

2 colors

Children's Bike - city bike 16" wheel from the age of 4 years, without suspension, aluminium frame, for children weighing up to 30kg

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2 colors

Children's Bike - city bike 20" wheel from the age of 6 years, without suspension, meant for recreational use, steel frame, pedals included and with basket, for children weighing...

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Dino Bikes Bmx 14"

5×

113.46 € Save 6.04 €

In stock > 5 pcs at the supplier's

2 sizes

Children's Bike - city bike 14 " wheel from the age of 4 years, without suspension, meant for recreational use, steel frame, freewheel, balance wheels, mudguard and low Step, for...

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Dino Bikes Bmx 12"

5×

84.62 € Save 34.88 €

In stock > 5 pcs at the supplier's

2 sizes

Children's Bike - city bike 12" wheel from the age of 3 years, without suspension, meant for recreational use, steel frame, balance wheels, mudguard and low Step, for children...

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Academy Grade 4 20-8S Microshift ocean

5×

489 €

In stock 1 pcs

4 colors

Children's Bike - city bike 20" wheel from the age of 6 years, without suspension, aluminium frame

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Children's Bike - city bike 16" wheel from the age of 4 years, without suspension, meant for recreational use, steel frame, with Plain theme, freewheel, pedals included and...

Added to cart

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Dino Bikes Paw Patrol 14"

3×

131.13 €

In stock > 5 pcs at the supplier's

2 sizes

Children's Bike - city bike 14 " wheel from the age of 4 years, without suspension, meant for recreational use, steel frame, with PAW Patrol theme, freewheel, for beginners,...

Added to cart

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Academy Grade 3 16-1S Blue

9×

429 €

In stock 1 pcs

2 colors

Children's Bike - city bike 16" wheel from the age of 4 years, without suspension, aluminium frame, for children weighing up to 30kg

Added to cart

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Dino Bikes Hot Wheels 12"

1×

104.90 € Save 4.60 €

In stock 5 pcs at the supplier's

Children's Bike - city bike 12" wheel, for boys from the age of 3 years, without suspension, meant for recreational use, steel frame, for beginners, balance wheels and mudguard,...

Added to cart

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In the category Kids' Bicycles on Alza.sk, we currently have a total of 204 products, which you can easily buy online and get quickly delivered. See all of your purchases and make orders on our easy-to-use app. Continue

Kids' Bicycles

Kids' Bicycles – proved brands

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