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

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delivery

Olpran Agilis boy 20" light green/orange/black

1×

4,790,-

In stock > 5 pcs

2 colors

Children's Bike - children's bike 20" wheel, front suspension fork, meant for recreational use, steel frame, frame size: M, with Without theme theme, light weight, pedals included,...

Added to cart

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AUTHOR Limit 24 2026 12.5" Matt Titanium/Black/Red

10,990,-

In stock 3 pcs

3 colors

Add AlzaPlus+ and save instantly 9,891,-

Children's Bike - children's bike 24" wheel, without suspension, meant for sports use, aluminium frame, frame height: 318mm, frame size: XS, with Plain theme, light weight, pedals...

Added to cart

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Dino Bikes Barbie 16"

3×

3,290,-

In stock > 5 pcs at the supplier's

Children's Bike - children's bike 16" wheel, for girls from the age of 5 years, without suspension, meant for recreational use, steel frame, freewheel, for beginners, pedals...

Added to cart

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ACADEMY S-GRADE Trail 4 Amber

19,790,- 23,290,-

In stock 3 pcs

Add AlzaPlus+ and save instantly 17,811,-

Children's Bike - trail bike 20" wheel from the age of 6 years, front suspension fork, meant for sports use, aluminium frame, frame height: 240mm, with Without theme theme, for...

Added to cart

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Dino Bikes Flappy Girls bike 14" with accessories

2,499,-

In stock > 5 pcs at the supplier's

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

Added to cart

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Free
delivery

Olpran Agilis boy 20" dark green/orange

1×

4,790,-

In stock > 5 pcs

2 colors

Children's Bike - children's bike 20" wheel, front suspension fork, meant for recreational use, steel frame, frame size: M, pedals included, for children weighing up to 60kg

Added to cart

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Dino Bikes Barbie 12"

2,499,- 2,599,-

In stock 1 pcs

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

Added to cart

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Dino Bikes Sonic 12"

3,719,- Save 463,-

In stock 2 pcs

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

Added to cart

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Dino Bikes 204R-UN - Girl Unicorn 20"

4,650,-

In stock > 5 pcs at the supplier's

Children's Bike - children's bike 20" wheel, for girls from the age of 6 years, without suspension, steel frame, frame height: 370mm, with Unicorn theme, freewheel, pedals...

Added to cart

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Dino Bikes Minnie Children's Bike

3,199,-

In stock > 5 pcs at the supplier's

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

Added to cart

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Rock Machine Thunder 20 VB Jade Blue 20 × 9.0"

7,989,-

In stock 1 pcs

Children's Bike - children's bike 20" wheel, without suspension, meant for recreational use, aluminium frame, frame height: 255mm, with Without theme theme, light weight, pedals...

Added to cart

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Toimsa T1495 Peppa Pig 14

4,608,-

In stock 5 pcs at the supplier's

Children's Bike - children's bike, without suspension, meant for recreational use, steel frame, for children weighing up to 34kg

Added to cart

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Free
delivery

Olpran Papilio Disc girl blue/red 20"

5,790,-

In stock > 5 pcs

Children's Bike - children's bike 20" wheel, front suspension fork, meant for recreational use, steel frame, frame size: M, with Without theme theme, for beginners, pedals...

Added to cart

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AUTHOR Cosmic 20 2026 10" Blue/White

8,990,-

In stock > 5 pcs

3 colors

Add AlzaPlus+ and save instantly 8,091,-

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, with...

Added to cart

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Dino Bikes Superman 14"

1×

2,999,-

In stock > 5 pcs at the supplier's

Children's Bike - children's bike 14 " wheel from the age of 4 years, without suspension, meant for recreational use, steel frame, light weight, balance wheels, for children...

Added to cart

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Toimsa T1280 Paw Patrol purple 12

4,261,-

In stock 4 pcs at the supplier's

Children's Bike - children's bike 12" wheel, without suspension, meant for recreational use, steel frame, with PAW Patrol theme, for children weighing up to 30kg

Added to cart

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Volare Spiderman 20", black

4,599,-

In stock > 5 pcs at the supplier's

Children's Bike - children's bike 20" wheel, for boys from the age of 7 years, without suspension, meant for recreational use, steel frame, for beginners, mudguard and with stand,...

Added to cart

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Dino Bikes Dino Boys bike 16" Dinosaur Adventuri

2,679,-

In stock 2 pcs at the supplier's

Children's Bike - children's bike 16" wheel, for boys, without suspension, meant for recreational use, steel frame, with Dinosaurus theme, balance wheels and mudguard, for children...

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

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

Dino Bikes 144R-PRI - Princess 14"

4,479,-

In stock 2 pcs at the supplier's

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

Added to cart

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Volare Wish 12", purple CB

2,499,-

In stock > 5 pcs at the supplier's

4 variants

Children's Bike - children's bike 12" wheel, for girls 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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Toimsa T1695 Peppa Pig 16

3,799,-

In stock > 5 pcs at the supplier's

Children's Bike - children's bike 16" wheel, without suspension, meant for recreational use, steel frame, for children weighing up to 37kg

Added to cart

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Toimsa T1297 My Little Pony 12

4,285,-

In stock 4 pcs at the supplier's

3 sizes

Children's Bike - children's bike 12" 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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Volare Stitch 16", pink

3,599,-

In stock > 5 pcs at the supplier's

3 variants

Children's Bike - children's bike 16" wheel, for girls from the age of 4 years, without suspension, meant for recreational use, steel frame, for beginners, balance wheels and...

Added to cart

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In the category Kids' Bicycles on Alza.cz, we currently have a total of 244 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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