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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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Lightweight Kids’ Bikes Lightweight 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' Electric Bikes Electric Bikes Bike Training Wheels Training Wheels Balance Bikes Balance Bikes Servis kola bez starostí Jak vybrat dětské kolo
 
202 Results
AUTHOR Limit 26 2026 13.5" silver/lime - Children's Bike
2 colors
AUTHOR Limit 26 2026 13.5" silver/lime
Children's Bike - children's bike 26" wheel, without suspension, meant for sports use, aluminium frame, frame height: 343mm, frame size: S, with Without theme theme, light weight, for children weighing up to 50kg, 2026 model
New arrival 183,440 Ft
Buy
In stock 4 pcs
Order Code: SPTautko288
AUTHOR Record 20 2025 10" Grey/Lime/Red - Children's Bike
2 colors
AUTHOR Record 20 2025 10" Grey/Lime/Red
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 weight, for children weighing up to 30kg, 2025 model
New arrival 152,840 Ft
Buy
In stock > 5 pcs
Order Code: SPTautko276
ACADEMY S-GRADE Gravel 7 Forest - Children's Bike Free delivery
to Alza branch
2 colors
ACADEMY S-GRADE Gravel 7 Forest
Children's Bike - gravel bike 27,5" wheel, front suspension fork, aluminium frame
New arrival 407,490 Ft
Buy
In stock 1 pcs
Order Code: SPTacd113
Academy Grade 3 16-1S belt Yellow - Children's Bike
6 colors
5.0 2×
Academy Grade 3 16-1S belt Yellow
Children's Bike - children's bike 16" wheel from the age of 4 years, without suspension, aluminium frame, frame height: 26mm, for children weighing up to 30kg
Buy at the price for both existing and new AlzaPlus+ members 172,160 Ft
191,290 Ft
Buy
In stock 1 pcs
Order Code: SPTacd036
Academy Grade 4 20-7S Nexus belt Purple - Children's Bike
6 colors
5.0 2×
Academy Grade 4 20-7S Nexus belt Purple
Children's Bike - children's bike 20" wheel from the age of 6 years, without suspension, aluminium frame
280,990 Ft
Buy
In stock 1 pcs
Order Code: SPTacd041
AUTHOR Limit 24 2026 12.5" White/Gold - Children's Bike
3 colors
AUTHOR Limit 24 2026 12.5" White/Gold
Children's Bike - children's bike 24" wheel, without suspension, meant for sports use, aluminium frame, frame height: 318mm, frame size: XS, with Without theme theme, light weight, pedals included, for children weighing up to 50kg, 2026 model
New arrival 168,140 Ft
Buy
In stock 4 pcs
Order Code: SPTautko285
AUTHOR A-Matrix 24D 2026 12.5" Matt Green-Gold/Black/Lime - Children's Bike
3 colors
AUTHOR A-Matrix 24D 2026 12.5" Matt Green-Gold/Black/Lime
Children's Bike - children's bike 24" wheel from the age of 8 years, spring fork and front suspension fork, meant for sports use, aluminium frame, frame height: 318mm, frame size: XS, light weight, with disc brakes, for children weighing up to 50kg, 2026 model
New arrival 183,440 Ft
Buy
In stock 4 pcs
Order Code: SPTautko283
AUTHOR Limit 26 2025 13.5" Blue/Lime - Children's Bike
AUTHOR Limit 26 2025 13.5" Blue/Lime
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 theme theme, light weight, for children weighing up to 50kg, 2025 model
New arrival 183,440 Ft
Buy
In stock 4 pcs
Order Code: SPTautko277
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
177,290 Ft
Buy
In stock 2 pcs
Order Code: SPTyed209
AUTHOR Record 16 2025 9" Grey/Green - Children's Bike
3 colors
AUTHOR Record 16 2025 9" Grey/Green
Children's Bike - children's bike 16" wheel from the age of 3 years, without suspension, meant for recreational use, aluminium frame, frame height: 229mm, frame size: XS, with Without theme theme, light weight, freewheel, for children weighing up to 30kg, 2025 model
New arrival 122,240 Ft
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SPTautko272
AUTHOR Record 16 2025 9" Lime/Blue - Children's Bike
3 colors
AUTHOR Record 16 2025 9" Lime/Blue
Children's Bike - children's bike 16" wheel from the age of 3 years, without suspension, meant for recreational use, aluminium frame, frame height: 229mm, frame size: XS, with Without theme theme, light weight, freewheel, for children weighing up to 30kg, 2025 model
New arrival 122,240 Ft
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SPTautko270
AUTHOR A-Matrix 24D 2026 12.5" White/Black/Blue - Children's Bike
3 colors
AUTHOR A-Matrix 24D 2026 12.5" White/Black/Blue
Children's Bike - children's bike 24" wheel, spring fork and front suspension fork, meant for sports use, aluminium frame, frame height: 318mm, frame size: XS, light weight, with disc brakes, for children weighing up to 50kg, 2026 model
New arrival 183,440 Ft
Buy
In stock 4 pcs
Order Code: SPTautko282
Joiride ultra light 24" petrolejová/mátová - Children's Bike
3 colors 4 sizes
Joiride ultra light 24" petrolejová/mátová
Children's Bike - children's bike 24" wheel from the age of 10 years, without suspension, meant for recreational use, aluminium frame, frame size: M, pedals included, for children weighing up to 80kg
193,390 Ft
Buy
In stock > 5 pcs
Order Code: SPTjoir010
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
184,590 Ft
Buy
In stock 3 pcs
Order Code: SPTRoMa057
Yedoo Koolo 20 green - Children's Bike
4 colors
5.0 1×
Yedoo Koolo 20 green
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
203,090 Ft
Buy
In stock 5 pcs
Order Code: SPTyed211
Yedoo Koolo 20 pink - Children's Bike
4 colors
5.0 1×
Yedoo Koolo 20 pink
Children's Bike - children's bike 20" wheel, for girls 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
203,090 Ft
Buy
In stock > 5 pcs
Order Code: SPTyed212
Yedoo Koolo 20 blue - Children's Bike
4 colors
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
203,090 Ft
Buy
In stock > 5 pcs
Order Code: SPTyed210
Academy Grade 2 14-1S belt blue - Children's Bike
5 colors
5.0 1×
Academy Grade 2 14-1S belt blue
Children's Bike - children's bike 14 " wheel from the age of 2 years, without suspension, aluminium frame, for children weighing up to 30kg
174,990 Ft
Buy
In stock 1 pcs
Order Code: SPTacd062
Academy Grade 3 16-1S yellow - Children's Bike
6 colors
5.0 9×
Academy Grade 3 16-1S yellow
Children's Bike - children's bike 16" wheel from the age of 4 years, without suspension, aluminium frame
Buy at the price for both existing and new AlzaPlus+ members 157,490 Ft
174,990 Ft
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SPTacd066
Academy Grade 3 16-1S purple - Children's Bike
6 colors
5.0 9×
Academy Grade 3 16-1S purple
Children's Bike - children's bike 16" wheel from the age of 4 years, without suspension, aluminium frame
Buy at the price for both existing and new AlzaPlus+ members 157,490 Ft
174,990 Ft
Buy
In stock > 5 pcs
Order Code: SPTacd065
Academy Grade 3 16-1S ocean - Children's Bike
6 colors
5.0 9×
Academy Grade 3 16-1S ocean
Children's Bike - children's bike 16" wheel from the age of 4 years, without suspension, aluminium frame
Buy at the price for both existing and new AlzaPlus+ members 157,490 Ft
174,990 Ft
Buy
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SPTacd064
Academy Grade 2 14-1S belt red - Children's Bike
5 colors
5.0 1×
Academy Grade 2 14-1S belt red
Children's Bike - children's bike 14 " wheel from the age of 2 years, without suspension, aluminium frame, for children weighing up to 30kg
174,990 Ft
Buy
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SPTacd063
Academy Grade 2 14-1S belt green - Children's Bike
5 colors
5.0 1×
Academy Grade 2 14-1S belt green
Children's Bike - children's bike 14 " wheel from the age of 2 years, without suspension, aluminium frame, for children weighing up to 30kg
Buy at the price for both existing and new AlzaPlus+ members 157,490 Ft
174,990 Ft
Buy
In stock 2 pcs
Order Code: SPTacd061
Academy Grade 2 14-1S yellow - Children's Bike
6 colors
5.0 3×
Academy Grade 2 14-1S yellow
Children's Bike - children's bike 14 " wheel from the age of 2 years, without suspension, aluminium frame, for children weighing up to 30kg
Buy at the price for both existing and new AlzaPlus+ members 139,130 Ft
154,590 Ft
Buy
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SPTacd060
Lightweight Kids’ Bikes Lightweight 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' Electric Bikes Electric Bikes Bike Training Wheels Training Wheels Balance Bikes Balance Bikes Servis kola bez starostí Jak vybrat dětské kolo
 

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In the category Kids' Bicycles on Alza.hu, we currently have a total of 202 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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