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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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217 Results
ACADEMY S-GRADE Trail 5 Amber - Children's Bike
Free delivery
to Alza branch
2 colors
ACADEMY S-GRADE Trail 5 Amber
Children's Bike - trail bike 24" wheel from the age of 7 years, front suspension fork, aluminium frame
979.01 €
From 22.52 € per month
Buy
In stock 2 pcs
Order Code: SPTacd105
Academy Grade 5 24-7S Nexus belt green - Children's Bike
4 colors
Academy Grade 5 24-7S Nexus belt green
Children's Bike - children's bike 24" wheel from the age of 7 years, without suspension, aluminium frame
729 €
From 16.77 € per month
Buy
In stock 1 pcs
Order Code: SPTacd079
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
-8 % off new 100.90 € New 109.90 €
Buy
Unsealed - in stock 1 pcs
Order Code: SPTxacr329
Rock Machine Thunder 20 VB Jade Blue 20 × 9.0" - Children's Bike
Rock Machine Thunder 20 VB Jade Blue 20 × 9.0"
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 included
396.90 €
From 9.13 € per month
Buy
In stock 1 pcs
Order Code: SPTRoMa061
Rock Machine Thunder 20 VB Gloss Red/White/Black 20 × 10.0" - Children's Bike
Rock Machine Thunder 20 VB Gloss Red/White/Black 20 × 10.0"
Children's Bike - children's bike 20" wheel, without suspension, meant for recreational use, aluminium frame, frame height: 254mm, with Without theme theme, light weight, pedals included, 2024 model
376.90 €
From 8.67 € per month
Buy
In stock 3 pcs
Order Code: SPTRoMa062
Rock Machine Blizz 20 MD Gloss Red/White/Black 20 × 10.0" - Children's Bike
2 colors
Rock Machine Blizz 20 MD Gloss Red/White/Black 20 × 10.0"
Children's Bike - children's bike 20" wheel, without suspension, meant for recreational use, aluminium frame, frame height: 250mm, with Without theme theme, light weight, pedals included, for children weighing up to 120kg, 2024 model
502.90 €
From 11.57 € per month
Buy
In stock 3 pcs
Order Code: SPTRoMa057
Rock Machine Storm 20 VB Sulfur Yellow 20 × 9,0" - Children's Bike
Rock Machine Storm 20 VB Sulfur Yellow 20 × 9,0"
Children's Bike - children's bike 20" wheel, front suspension fork, meant for recreational use, aluminium frame, frame height: 230mm, with Without theme theme, light weight, pedals included
481.90 €
From 11.08 € per month
Buy
In stock 2 pcs
Order Code: SPTRoMa059
ACADEMY S-GRADE Gravel 5 Forest - Children's Bike
Free delivery
to Alza branch
ACADEMY S-GRADE Gravel 5 Forest
Children's Bike - gravel bike 24" wheel from the age of 7 years, front suspension fork, aluminium frame
New arrival 879 €
From 20.22 € per month
Buy
In stock 1 pcs
Order Code: SPTacd111
ACADEMY S-GRADE Trail 7 RH38 Space - Children's Bike
Free delivery
to Alza branch
ACADEMY S-GRADE Trail 7 RH38 Space
Children's Bike - trail bike 27,5" wheel, front suspension fork, aluminium frame
New arrival 999 €
From 22.98 € per month
Buy
In stock 1 pcs
Order Code: SPTacd110
ACADEMY S-GRADE Trail 7 RH38 Amber - Children's Bike
Free delivery
to Alza branch
ACADEMY S-GRADE Trail 7 RH38 Amber
Children's Bike - trail bike 27,5" wheel, front suspension fork, aluminium frame
999 €
From 22.98 € per month
Buy
In stock 1 pcs
Order Code: SPTacd109
ACADEMY S-GRADE Trail 7 RH33 Space - Children's Bike
Free delivery
to Alza branch
2 colors
ACADEMY S-GRADE Trail 7 RH33 Space
Children's Bike - trail bike 27,5" wheel, front suspension fork, aluminium frame
New arrival 999 €
From 22.98 € per month
Buy
In stock 1 pcs
Order Code: SPTacd108
ACADEMY S-GRADE Trail 5 Space - Children's Bike
Free delivery
to Alza branch
2 colors
ACADEMY S-GRADE Trail 5 Space
Children's Bike - trail bike 24" wheel from the age of 7 years, front suspension fork, aluminium frame
979.01 €
From 22.52 € per month
Buy
In stock 1 pcs
Order Code: SPTacd106
ACADEMY S-GRADE Trail 4 Space - Children's Bike
Free delivery
to Alza branch
ACADEMY S-GRADE Trail 4 Space
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 €
From 21.83 € per month
Buy
In stock 1 pcs
Order Code: SPTacd104
Yedoo Koolo 16 grey - Children's Bike
4 colors
Yedoo Koolo 16 grey
Children's Bike - children's bike 16" wheel, for boys from the age of 3 years, without suspension, meant for recreational use, aluminium frame, with Without theme theme, light weight, freewheel, pedals included and low Step, for children weighing up to 50kg
Buy with code ALZADNI15 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 15 % s kódom ALZADNI15. Kliknite a kód sa uplatní automaticky. 373.15 €
439 €
From 10.10 € per month
Buy
In stock > 5 pcs
Order Code: SPTyed209
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
-10 % off new 214.90 € New 239 €
From 4.94 € per month
Buy
As good as new - in stock 1 pcs
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
-10 % off new 148.90 € New 165.90 €
From 3.42 € per month
Buy
As good as new - in stock 1 pcs
Order Code: SPTdino024
Olpran Gryllus boy grey/petrol/red 24" - Children's Bike
Free
delivery
2 colors
2.7 3×
Olpran Gryllus boy grey/petrol/red 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 90kg
Buy with code ALZADNI10 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 10 % s kódom ALZADNI10. Kliknite a kód sa uplatní automaticky. 205.11 €
-21 % off new 227.90 € New 289 €
From 5.24 € per month
Buy
As good as new - in stock 1 pcs
Order Code: SPTolp536
Olpran Ultra light 24" pink/red - Children's Bike
Free
delivery
Olpran Ultra light 24" pink/red
Children's Bike - children's bike 24" wheel from the age of 10 years, without suspension, meant for recreational use, aluminium frame, pedals included, for children weighing up to 80kg
-12 % off new 355.90 € New 409 €
From 8.19 € per month
Buy
As good as new - in stock 1 pcs
Order Code: SPTolp610
Yedoo Koolo 20 blue - Children's Bike
5.0 1×
Yedoo Koolo 20 blue
Children's Bike - children's bike 20" wheel, for boys from the age of 5 years, without suspension, meant for sports use, aluminium frame, with Without theme theme, light weight, freewheel, pedals included and low Step, for children weighing up to 70kg
Buy with code ALZADNI10 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 10 % s kódom ALZADNI10. Kliknite a kód sa uplatní automaticky. 377.91 €
-19 % off new 419.90 € New 519 €
From 9.66 € per month
Buy
As good as new - in stock 1 pcs
Order Code: SPTyed210
Canull XC 241 black/white 24" - Children's Bike
4 colors
4.0 15×
Canull XC 241 black/white 24"
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 children weighing up to 110kg, 2023 model
-6 % off new 308.90 € New 328.90 €
From 7.10 € per month
Buy
Unsealed - in stock 1 pcs
Order Code: SPTolp345
Canull XC 241 white/purple 24" - Children's Bike
4 colors
4.0 15×
Canull XC 241 white/purple 24"
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 beginners, with stand, for children weighing up to 110kg, 2023 model
325.90 €
From 7.50 € per month
Buy
Unsealed - in stock 1 pcs
Order Code: SPTolp347
Canull XC 241 black/white 24" - Children's Bike
4 colors
4.0 15×
Canull XC 241 black/white 24"
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 children weighing up to 110kg, 2023 model
-10 % off new 295.90 € New 328.90 €
From 6.81 € per month
Buy
As good as new - in stock 1 pcs
Order Code: SPTolp345
Canull XC 241 white/purple 24" - Children's Bike
4 colors
4.0 15×
Canull XC 241 white/purple 24"
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 beginners, with stand, for children weighing up to 110kg, 2023 model
-10 % off new 292.90 € New 329 €
From 6.74 € per month
Buy
As good as new - in stock 1 pcs
Order Code: SPTolp347
Academy Grade 6 26-8S Mircoshift Olive - Children's Bike
2 colors
5.0 1×
Academy Grade 6 26-8S Mircoshift Olive
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 €
From 12.63 € per month
Buy
On the way 1 pcs
Expected 04/05/2026
Order Code: SPTacd010
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Kids' Bicycles

In the category Kids' Bicycles on Alza.sk, we currently have a total of 217 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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