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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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205 Results
Olpran Gryllus boy mint/honey/petrol 24" - Children's Bike
Free
delivery
2 colors
2.7 3×
Olpran Gryllus boy mint/honey/petrol 24"
Children's Bike - children's bike 24" wheel, front suspension fork, meant for recreational use, steel frame, frame size: M, with Without theme theme, for beginners, pedals included, for children weighing up to 70kg
239 €
From 5.50 € per month
Buy
On the way > 5 pcs
Expected 30/04/2026
Order Code: SPTolp537
Dino Bikes Barbie 16" - Children's Bike
1.5 2×
Dino Bikes Barbie 16"
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 included, balance wheels, mudguard, with basket and low Step, for children weighing up to 45kg
165.90 €
From 3.82 € per month
Buy
On the way 4 pcs
Expected 04/05/2026
Order Code: SPTdino024
Joiride ultra light 14" medová/černá - Children's Bike
3 sizes
Joiride ultra light 14" medová/černá
Children's Bike - children's bike 14 " wheel from the age of 3 years, without suspension, meant for recreational use, aluminium frame, frame size: M, pedals included and balance wheels, for children weighing up to 50kg
Discounted -6 % 309 € 329 €
From 7.11 € per month
Buy
In stock 1 pcs
Order Code: SPTjoir002
Academy Grade 5 24-8S Microshift Blue - Children's Bike
2 colors
5.0 1×
Academy Grade 5 24-8S Microshift Blue
Children's Bike - children's bike 24" wheel from the age of 8 years, without suspension, aluminium frame, frame height: 380mm, pedals included, for children weighing up to 60kg
539 €
Currently Unavailable
Order Code: SPTacd008
Academy Grade 6 26-8S Mircoshift yellow - Children's Bike
4 colors
5.0 1×
Academy Grade 6 26-8S Mircoshift yellow
Children's Bike - children's bike 26" wheel from the age of 10 years, without suspension, aluminium frame
549 €
Currently Unavailable
Order Code: SPTacd084
Dino Bikes 204BR 20" - Children's Bike
5.0 8×
Dino Bikes 204BR 20"
Children's Bike - children's 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 up to 100kg
201.90 €
Currently Unavailable
Order Code: SPTxacr348
Olpran Culex 24" black/red ALU - Children's Bike Free
delivery
4.0 1×
Olpran Culex 24" black/red ALU
Children's Bike - mountain bike 24" wheel, full suspension, meant for recreational use, steel frame, frame height: 330mm, frame size: S, pedals included, for children weighing up to 100kg
279 €
Currently Unavailable
Order Code: SPTolp620
Dino Bikes 814 14" - Children's Bike
5.0 4×
Dino Bikes 814 14"
Children's Bike - children's bike 14 " wheel from the age of 4 years, without suspension, meant for recreational use, steel frame, with Without theme theme, for beginners, pedals included and balance wheels, for children weighing up to 45kg
126.90 €
Currently Unavailable
Order Code: SPTxacr333
Dino Bikes 812 12" - Children's Bike
4.0 1×
Dino Bikes 812 12"
Children's Bike - children's bike 12" wheel, for boys from the age of 3 years, without suspension, meant for recreational use, steel frame, for beginners, pedals included and balance wheels, for children weighing up to 40kg
102.90 €
Currently Unavailable
Order Code: SPTxacr331
Dino Bikes Dinosaur 12" - Children's Bike
5.0 3×
Dino Bikes Dinosaur 12"
Children's Bike - children's bike 12" wheel from the age of 3 years, without suspension, meant for recreational use, steel frame, with Dinosaurus theme, for beginners, balance wheels, for children weighing up to 40kg
109.90 €
Currently Unavailable
Order Code: SPTxacr329
Dino Bikes white and pink 16" - Children's Bike
4.0 1×
Dino Bikes white and pink 16"
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 included, balance wheels, mudguard, with basket and low Step, for children weighing up to 50kg
144.90 €
Currently Unavailable
Order Code: SPTdino030
Academy Grade 6 26-8S Mircoshift Red - Children's Bike
2 colors
5.0 1×
Academy Grade 6 26-8S Mircoshift Red
Children's Bike - children's bike 26" wheel from the age of 10 years, without suspension, aluminium frame, frame height: 450mm, for children weighing up to 80kg
549 €
Currently Unavailable
Order Code: SPTacd012
Dino Bikes Dinosaur 16" - Children's Bike
3.2 6×
Dino Bikes Dinosaur 16"
Children's Bike - children's bike 16" wheel from the age of 5 years, without suspension, meant for recreational use, steel frame, with Dinosaurus theme, freewheel, balance wheels, mudguard and low Step, for children weighing up to 45kg
Discounted -5 % 117.90 € 125.29 €
Currently Unavailable
Order Code: SPTdino037
Academy Grade 6 26-7S Nexus belt Ocean - Children's Bike
Academy Grade 6 26-7S Nexus belt Ocean
Children's Bike - children's bike 26" wheel from the age of 10 years, without suspension, aluminium frame
779 €
Currently Unavailable
Order Code: SPTacd052
Olpran Ultra light 20" turquoise/grey - Children's Bike
Olpran Ultra light 20" turquoise/grey
Children's Bike - children's bike 20" wheel from the age of 7 years, without suspension, meant for recreational use, aluminium frame, pedals included, for children weighing up to 65kg
369 €
Currently Unavailable
Order Code: SPTolp607
Dino Bikes white and pink 12" - Children's Bike
Dino Bikes white and pink 12"
Children's Bike - children's bike 12" wheel from the age of 3 years, without suspension, meant for recreational use, steel frame, with Fairy theme, for beginners, pedals included and balance wheels, for children weighing up to 45kg
138.90 €
Currently Unavailable
Order Code: SPTxacr330
Olpran Ultra light 14" blue/pink - Children's Bike Free
delivery
Olpran Ultra light 14" blue/pink
Children's Bike - children's bike 14 " wheel from the age of 5 years, without suspension, meant for recreational use, aluminium frame, with Without theme theme, light weight, pedals included, for children weighing up to 50kg
289 €
Currently Unavailable
Order Code: SPTolp595
Dino Bikes Barbie 12" - Children's Bike
Dino Bikes Barbie 12"
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, mudguard and with child seat, for children weighing up to 40kg
108.90 €
Currently Unavailable
Order Code: SPTxacr326
Academy Grade 6 26-7S Nexus belt Yellow - Children's Bike
Academy Grade 6 26-7S Nexus belt Yellow
Children's Bike - children's bike 26" wheel from the age of 10 years, without suspension, aluminium frame
779 €
Currently Unavailable
Order Code: SPTacd054
ACADEMY S-GRADE Trail 4 Amber - Children's Bike Free delivery
to Alza branch
ACADEMY S-GRADE Trail 4 Amber
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 children weighing up to 70kg
949 €
Currently Unavailable
Order Code: SPTacd103
Academy Grade 6 26-7S Nexus belt Purple - Children's Bike
Academy Grade 6 26-7S Nexus belt Purple
Children's Bike - children's bike 26" wheel from the age of 10 years, without suspension, aluminium frame
792.90 €
Currently Unavailable
Order Code: SPTacd053
Dino Bikes 412 12" - Children's Bike
Dino Bikes 412 12"
Children's Bike - children's bike 12" wheel from the age of 2 years, without suspension, meant for recreational use, steel frame, with Without theme theme, for beginners, pedals included and balance wheels, for children weighing up to 40kg
139.90 €
Currently Unavailable
Order Code: SPTxacr328
Dino Bikes Sonic 12" - Children's Bike
Dino Bikes Sonic 12"
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 children weighing up to 40kg
119.90 €
Currently Unavailable
Order Code: DINOkol02
Academy Grade 4 20-7S Nexus belt blue - Children's Bike
5 colors
5.0 2×
Academy Grade 4 20-7S Nexus belt blue
Children's Bike - children's bike 20" wheel from the age of 6 years, without suspension, aluminium frame
669 €
Currently Unavailable
Order Code: SPTacd074

Kids' Bicycles

Girls' Bikes Girls' Boys' Bikes Boys' Kids' Bicycles - 2 to 3 Years 2-3 Years Kids' Bicycles - 4 to 6 Years 4 to 6 Years Kids' Bicycles - 7 to 9 Years 7 to 9 Years Children's Bikes 26" Diameter 26" Children's Bikes 24" Diameter 24" Children's Bikes 20" Diameter 20" Children's Bikes 16" Diameter 16" 14" Kids’ Bikes Diameter 14" Children's Bikes 12" Diameter up to 12" Kids' Mountain Bikes Mountain Kids' Bikes with Training Wheels With Training Wheels Lightweight Kids’ Bikes Lightweight Kids' Electric Bikes Electric Bikes Bike Training Wheels Training Wheels Balance Bikes Balance Bikes How to choose a kids' bike
 

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Kids' Bicycles

In the category Kids' Bicycles on Alza.sk, we currently have a total of 205 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.
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