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Buying guide · Updated November 2026

Kids Cycle Size by Age: How to Choose the Right Bike for Your Child

Which size cycle for your child? Kids bike size chart by age and height (12, 16, 20 and 24 inch), safety tips and what to look for when buying.

Kids bikes are measured by wheel size, not frame size. A bike that is too big is hard to control and unsafe. A bike that is too small is uncomfortable and soon outgrown. Use this chart and the simple stand-over test below.

Kids cycle size chart

AgeChild's heightWheel size
2 – 4 years2'10" – 3'4"12 inch
4 – 6 years3'4" – 3'10"16 inch
7 – 12 years3'10" – 4'10"20 inch
10 – 14 years4'6" – 5'2"24 inch

Height matters more than age. If your child is between two sizes, choose the smaller one for a younger or less confident rider.

The stand-over test

Ask your child to stand over the bike with both feet flat on the ground. There should be a little gap between the child and the top tube. When sitting on the saddle, the tips of both feet should touch the ground. If not, lower the saddle or choose a smaller bike.

What to look for in a kids bike

  • Light frame. Aluminium kids bikes like the Giant XTC Jr 20 (Yellow) are much easier for a child to ride and lift than heavy steel cycles.
  • Good brakes. V-brakes are easy for small hands. A coaster (pedal-back) brake, like on the Specialized Riprock Coaster 20, is great for younger riders.
  • Chain cover. Keeps fingers and clothes away from the chain.
  • Gears only when ready. Children around 9–12 can learn to use gears. The Giant XTC 20 (Red) has Shimano 7-speed gears.
  • Branded quality. Branded kids bikes last for years and keep their resale value when your child moves up a size.

Safety tips

  • Always use a helmet.
  • Check brakes and tyre pressure every week.
  • Teach basic road rules before riding on the street.

Browse our kids cycles (Rs 28,000 – Rs 38,000) or send your child's height on WhatsApp 0327 3986125 and we will suggest the right size.

Questions

What size cycle for a 7 year old?

Most 7 year olds fit a 20 inch kids bike. Smaller 7 year olds may need a 16 inch bike.

What size cycle for a 12 year old?

A 20 or 24 inch bike, depending on height. Children over about 4'10" usually need a 24 inch bike.

Bikes in this guide