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

How to choose a kids' bike

AUTHOR Limit 26 2025 13.5" Blue/Lime

11,990,-

In stock 4 pcs

Children's Bike - children's bike 26" wheel from the age of 8 years, without suspension, meant for sports use, aluminium frame, frame height: 343mm, frame size: 13,5", with Without...

Added to cart

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AUTHOR Record 20 2025 10" Grey/Lime/Red

9,990,-

In stock > 5 pcs

2 colors

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

Added to cart

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Volare Sonic 12", blue CB

2,999,-

In stock > 5 pcs at the supplier's

7 variants

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

Added to cart

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Free delivery
Alzaboxes and stores

ACADEMY S-GRADE Trail 7 RH33 Amber

24,490,-

In stock 1 pcs

Buy at the price for both existing and new AlzaPlus+ members 22,041,-

Children's Bike - trail bike 27,5" wheel, front suspension fork, aluminium frame

Added to cart

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Free delivery
Alzaboxes and stores

ACADEMY S-GRADE Trail 7 RH38 Space

24,490,-

In stock 1 pcs

Buy at the price for both existing and new AlzaPlus+ members 22,041,-

Children's Bike - trail bike 27,5" wheel, front suspension fork, aluminium frame

Added to cart

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Free delivery
Alzaboxes and stores

ACADEMY S-GRADE Trail 7 RH38 Amber

24,490,-

In stock 1 pcs

Buy at the price for both existing and new AlzaPlus+ members 22,041,-

Children's Bike - trail bike 27,5" wheel, front suspension fork, aluminium frame

Added to cart

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Free delivery
Alzaboxes and stores

ACADEMY S-GRADE Trail 5 Space

23,990,-

In stock 1 pcs

2 colors

Buy at the price for both existing and new AlzaPlus+ members 21,591,-

Children's Bike - trail bike 24" wheel from the age of 7 years, front suspension fork, aluminium frame

Added to cart

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Toimsa T619 Mickey Mouse 14

3,599,-

In stock 1 pcs at the supplier's

Children's Bike - children's bike 14 " wheel, without suspension, meant for recreational use, steel frame, with Mickey Mouse theme, for beginners, pedals included, balance wheels...

Added to cart

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Toimsa Bing green/red 12" kids bike

3,931,-

In stock 4 pcs at the supplier's

Children's Bike - children's bike 12" wheel, without suspension, steel frame, balance wheels, mudguard and with drink holder, for children weighing up to 30kg

Added to cart

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Toimsa T14216 Speed Racing 14

2,909,- New 3,099,-

As good as new - in stock 1 pcs

Children's Bike - children's bike 14 " wheel, without suspension, meant for recreational use, steel frame, frame size: XXS, for children weighing up to 34kg

Added to cart

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Toimsa T1497 My Little Pony 14

3,599,-

In stock 2 pcs at the supplier's

2 sizes

Children's Bike - children's bike 14 " wheel, without suspension, meant for recreational use, steel frame, frame size: XXS, balance wheels, mudguard and with basket, for children...

Added to cart

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Toimsa T1697 My Little Pony 16

3,799,-

In stock 3 pcs at the supplier's

2 sizes

Children's Bike - children's bike 16" wheel, without suspension, meant for recreational use, steel frame, frame size: XXS, balance wheels, mudguard and with basket, for children...

Added to cart

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Toimsa T14223 Fairy Magic 14

3,099,-

In stock > 5 pcs at the supplier's

Children's Bike - children's bike 14 " wheel, without suspension, meant for recreational use, steel frame, frame size: XXS, with Fairy theme, balance wheels, mudguard and with...

Added to cart

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Free delivery
Alzaboxes and stores

AUTHOR Synergy - green-gold-matte/black

46,990,-

In stock according to variant

4 variants 2 colors

Cross Bike - karbon frame, number of speeds: 22, SHIMANO Cues 6020 rear derailleur, front suspension fork 80mm, TEKTRO HD-M530, hydraulic disc (6" rotors) brakes

Select a variant

Canull XC 241 black/white 24"

15×

7,509,- New 7,990,-

As good as new - in stock 1 pcs

2 colors

Children's Bike - mountain, children's and Cross country / XC bike 24" wheel, front suspension fork, meant for recreational and sports use, aluminium frame, frame size: S, for...

Added to cart

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Canull XC 241 white/purple 24"

15×

7,029,- New 7,990,-

As good as new - in stock 1 pcs

2 colors

Children's Bike - mountain, children's and Cross country / XC bike 24" wheel, front suspension fork, meant for recreational and sports use, aluminium frame, frame size: S, for...

Added to cart

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Free
delivery

Canull XC 220 black/white 20"

5×

6,289,- New 6,690,-

As good as new - in stock 2 pcs

Children's Bike - mountain, children's and Cross country / XC bike 20" wheel, front suspension fork, meant for recreational and sports use, steel frame, frame size: S, for...

Added to cart

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Free
delivery

Olpran Felis 20" pink/mint

3×

4,790,-

In stock 2 pcs

3 colors

Children's Bike - mountain bike 20" wheel, for girls, without suspension, meant for recreational use, steel frame, frame height: 330mm, frame size: S, with Without theme theme,...

Added to cart

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

Added to cart

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Academy Grade 3 16-1S Olive

9×

10,490,-

In stock 1 pcs

3 colors

Children's Bike - children's 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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Free
delivery

Olpran Felis 20" green

3×

4,790,-

In stock 4 pcs

3 colors

Children's Bike - mountain bike 20" wheel, without suspension, meant for recreational use, steel frame, frame height: 330mm, frame size: S, with Without theme theme, pedals...

Added to cart

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Academy Grade 2 14-1S ocean

3×

9,290,-

In stock 3 pcs

6 colors

Buy at the price for both existing and new AlzaPlus+ members 8,361,-

Children's Bike - children's bike 14 " wheel from the age of 2 years, without suspension, aluminium frame, for children weighing up to 30kg

Added to cart

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Free
delivery

Olpran Anas 20" green

2×

4,590,-

In stock 1 pcs

Children's Bike - mountain bike 20" wheel, without suspension, meant for recreational use, steel frame, frame height: 330mm, frame size: S, with Without theme theme, pedals...

Added to cart

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Academy Grade 2 14-1S Olive

3×

9,290,-

In stock 3 pcs

6 colors

Children's Bike - children's bike 14 " wheel from the age of 3 years, without suspension, aluminium frame, frame height: 21mm, for children weighing up to 30kg

Added to cart

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In the category Kids' Bicycles on Alza.cz, we currently have a total of 272 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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