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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178 Results
ACADEMY S-GRADE Gravel 5 Forest - Children's Bike Free delivery
to Alza branch
2 colors
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ACADEMY S-GRADE Gravel 5 Forest
Children's Bike - gravel bike 24" wheel from the age of 7 years, front suspension fork, aluminium frame
  358,490 Ft
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In stock 1 pcs
Order Code: SPTacd111
AUTHOR Cosmic 20 2025 10" Black/Orange - Children's Bike
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AUTHOR Cosmic 20 2025 10" Black/Orange
Children's Bike - city 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
Great price 122,240 Ft
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In stock 4 pcs
Order Code: SPTautko273
ACADEMY S-GRADE Trail 7 RH33 Amber - Children's Bike
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ACADEMY S-GRADE Trail 7 RH33 Amber
Children's Bike - mountain bike 27,5" wheel, front suspension fork, aluminium frame
BLACK FRIDAY -31 % 278,890 Ft 407,490 Ft
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In stock
Order Code: SPTacd107
Academy Grade 5 24-7S Nexus belt Ocean - Children's Bike
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3 colors
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Academy Grade 5 24-7S Nexus belt Ocean
Children's Bike - city bike 24" wheel from the age of 7 years, without suspension, aluminium frame
BLACK FRIDAY -34 % 202,790 Ft 309,590 Ft
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In stock
Order Code: SPTacd046
AUTHOR Cosmic 20 2026 10" Silver/Pink - Children's Bike
3 colors
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AUTHOR Cosmic 20 2026 10" Silver/Pink
Children's Bike - city bike 20" wheel, without suspension, meant for recreational use, aluminium frame, frame height: 254mm, light weight, for children weighing up to 30kg
  137,540 Ft
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In stock > 5 pcs
Order Code: SPTautko280
AUTHOR Cosmic 20 2026 10" Grey/Black/Red - Children's Bike
3 colors
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AUTHOR Cosmic 20 2026 10" Grey/Black/Red
Children's Bike - city 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, 2026 model
  137,540 Ft
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In stock > 5 pcs
Order Code: SPTautko279
AUTHOR Limit 24 2026 12.5" Matt Titanium/Black/Red - Children's Bike
3 colors
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AUTHOR Limit 24 2026 12.5" Matt Titanium/Black/Red
Children's Bike - city bike 24" wheel, without suspension, meant for sports use, aluminium frame, frame height: 318mm, frame size: XS, with Plain theme, light weight, pedals included, for children weighing up to 50kg, 2026 model
  168,140 Ft
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In stock 3 pcs
Order Code: SPTautko286
AUTHOR Record 20 2025 10" White/Silver/Red - Children's Bike
2 colors
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AUTHOR Record 20 2025 10" White/Silver/Red
Children's Bike - city 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
  152,840 Ft
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In stock > 5 pcs
Order Code: SPTautko275
AUTHOR Record 16 2025 9" Lime/Blue - Children's Bike
3 colors
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AUTHOR Record 16 2025 9" Lime/Blue
Children's Bike - city bike 16" wheel from the age of 3 years, without suspension, meant for recreational use, aluminium frame, frame height: 229mm, frame size: XS, with Plain theme, light weight, freewheel, for children weighing up to 30kg, 2025 model
  122,240 Ft
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In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: SPTautko270
AUTHOR Limit 24 2026 12.5" Silver/Yellow - Children's Bike
3 colors
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AUTHOR Limit 24 2026 12.5" Silver/Yellow
Children's Bike - city bike 24" wheel, without suspension, meant for sports use, aluminium frame, frame height: 318mm, frame size: XS, with Plain theme, light weight, pedals included, for children weighing up to 50kg, 2026 model
  168,140 Ft
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In stock 4 pcs
Order Code: SPTautko284
AUTHOR Limit 26 2025 13.5" Blue/Lime - Children's Bike
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AUTHOR Limit 26 2025 13.5" Blue/Lime
Children's Bike - city bike 26" wheel from the age of 8 years, without suspension, meant for sports use, aluminium frame, frame height: 343mm, with Plain theme, light weight, for children weighing up to 50kg, 2025 model
  183,440 Ft
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In stock 4 pcs
Order Code: SPTautko277
AUTHOR Record 20 2025 10" Grey/Lime/Red - Children's Bike
2 colors
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AUTHOR Record 20 2025 10" Grey/Lime/Red
Children's Bike - city 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
  152,840 Ft
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In stock > 5 pcs
Order Code: SPTautko276
ACADEMY S-GRADE Pump 6 Plum - Children's Bike Free delivery
to Alza branch
2 colors
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ACADEMY S-GRADE Pump 6 Plum
Children's Bike - mountain bike 26" wheel from the age of 10 years, front suspension fork, aluminium frame
  366,690 Ft
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In stock 1 pcs
Order Code: SPTacd119
ACADEMY S-GRADE Pump 5 Frost - Children's Bike Free delivery
to Alza branch
2 colors
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ACADEMY S-GRADE Pump 5 Frost
Children's Bike - mountain bike 24" wheel from the age of 7 years, front suspension fork, aluminium frame
  346,290 Ft
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In stock 1 pcs
Order Code: SPTacd118
ACADEMY S-GRADE Pump 5 Plum - Children's Bike Free delivery
to Alza branch
2 colors
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ACADEMY S-GRADE Pump 5 Plum
Children's Bike - mountain bike 24" wheel from the age of 7 years, front suspension fork, aluminium frame
  346,290 Ft
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In stock 1 pcs
Order Code: SPTacd117
Joiride ultra light 20" medová/černá - Children's Bike
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2 sizes
4.0 2×
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Joiride ultra light 20" medová/černá
Children's Bike - city bike 20" wheel from the age of 7 years, without suspension, meant for recreational use, aluminium frame, frame size: M, pedals included, for children weighing up to 65kg
-6 % off new 136,290 Ft New 144,990 Ft
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Unsealed - in stock 1 pcs
Order Code: SPTjoir008
Joiride ultra light 20" medová/černá - Children's Bike
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2 colors 2 sizes
4.0 2×
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Joiride ultra light 20" medová/černá
Children's Bike - city bike 20" wheel from the age of 7 years, without suspension, meant for recreational use, aluminium frame, frame size: M, pedals included, for children weighing up to 65kg
-11 % off new 128,990 Ft New 144,990 Ft
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As good as new - in stock 1 pcs
Order Code: SPTjoir008
Rock Machine Blizz 20 MD Orange 20 × 10.0" - Children's Bike
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Rock Machine Blizz 20 MD Orange 20 × 10.0"
Children's Bike - city bike 20" wheel, without suspension, meant for recreational use, aluminium frame, frame height: 250mm, with Plain theme, light weight, pedals included, for children weighing up to 120kg, 2024 model
BLACK FRIDAY -26 % 134,290 Ft 181,690 Ft
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In stock
Order Code: SPTRoMa056
Olpran Vipera 20" mint/sand - Children's Bike
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3 colors
5.0 1×
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Olpran Vipera 20" mint/sand
Children's Bike - mountain bike 20" wheel, full suspension, meant for recreational use, steel frame, frame height: 280mm, frame size: S, with Plain theme, pedals included, for children weighing up to 70kg
BLACK FRIDAY -36 % 64,190 Ft 101,560 Ft
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In stock
Order Code: SPTolp615
Olpran Felis 20" pink/mint - Children's Bike
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3 colors
5.0 3×
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Olpran Felis 20" pink/mint
Children's Bike - mountain bike 20" wheel, for girls, without suspension, meant for recreational use, steel frame, frame height: 330mm, frame size: S, with Plain theme, pedals included, for children weighing up to 70kg
BLACK FRIDAY -27 % 59,690 Ft 81,890 Ft
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In stock
Order Code: SPTolp616
Yedoo Koolo 20 blue - Children's Bike
3 colors
4.5 2×
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Yedoo Koolo 20 blue
Children's Bike - city bike 20" wheel, for boys from the age of 5 years, without suspension, meant for sports use, aluminium frame, with Plain theme, light weight, freewheel, pedals included and low Step, for children weighing up to 70kg
New arrival 183,210 Ft
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In stock 1 pcs at the supplier's
Order Code: SPTyed210
Yedoo Koolo 16 pink - Children's Bike
3 colors
5.0 2×
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Yedoo Koolo 16 pink
Children's Bike - city bike 16" wheel, for girls from the age of 3 years, without suspension, meant for recreational use, aluminium frame, with Plain theme, light weight, freewheel, pedals included and low Step, for children weighing up to 50kg
  177,290 Ft
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SPTyed208
ACADEMY S-GRADE Trail 4 R Amber - Children's Bike Free delivery
to Alza branch
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ACADEMY S-GRADE Trail 4 R Amber
Children's Bike - mountain bike from the age of 6 years, front suspension fork, aluminium frame
  325,890 Ft
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In stock 1 pcs
Order Code: SPTacd121
ACADEMY S-GRADE Pump 6 Frost - Children's Bike Free delivery
to Alza branch
2 colors
Watch Price/Availability
ACADEMY S-GRADE Pump 6 Frost
Children's Bike - mountain bike 26" wheel from the age of 10 years, front suspension fork, aluminium frame
  366,690 Ft
Buy
In stock 1 pcs
Order Code: SPTacd120
 

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