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Not sure what sized bike is best?
Answer a few short questions and we'll make a recommendation on which size is best for you.
Find Your Size
Step 1: Measure your height
- Take off your shoes
- Stand with your back straight against a wall
- Balance a book on your head to mark your height on the wall
- Measure your height by the distance from the floor to the mark
cm
Find Your Size
Step 2: Adjust your inseam
- Based on your height, we’ve calculated a starting point.
- You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
- Inseam typically falls with 5cm of the average.
cm
Find Your Size
Your results
For the we suggest the following size.
More comfort
More speed
Height:
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Inseam:
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Adjusted Height:
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We can't make a recommendation on size for the based on your details.
Finding the right sized bike for you is important to get the most enjoyment out of your new bike. Either the size for you isn't available at your store, we don’t have the required data or your height is outside the range of this bike.
If you head instore our team will provide a free professional measure up and recommend the best bikes to suit your needs or you can reach out to our customer service team who can provide you with more guidance over the phone.
Find Your Size
We have saved your measurements.
Recommended sizes will now be highlighted on the page.
Kids bikes are safest when you buy from a reputable bike shop and have been assembled by a professional mechanic. We have a huge range of kids bikes including kids mountain bikes, BMX bikes, and balance bikes from Apollo, Radius, Rocket, Merida, and more. Choosing the right colour is important but even more important is choosing the right size. Kids bike sizes refer to the diameter of the wheels, with the most popular sizes being 12 inch, 16 inch, 20 inch & 24 inch. We recommend you visit your local 99 Bikes store for a professional bike fit and sizing, however the general recommendation on kids bikes are: 12inch wheel best for 3-5 years old or 78 to 94 cm tall, 16inch wheel best for 5-7 years old or 84 to 112cm tall, 20inch wheel is best for 7-9 years old or 108 to 129cm tall, and 24inch wheel is best for 9-12 years old or 125 to 148cm tall. The best way to determine correct bike size is to visit a 99 Bikes store.
Balance bikes are a great introduction to riding without the additional complications of pedals. Your little girl or boy will gain confidence and basic balance skills and have a great time while they're at it. These bikes are the perfect start to the world of bikes, all whilst helping your kids gain great balancing ability and set them up for a pedal bike as they build their ability.
We have a great range of girls mountain bikes for sale. Girls bicycles feature slightly different frame designs to provide a greater level of riding comfort for your girl. Our range of girls bikes also feature bright and colourful designs which ensure she'll want to ride it as often as possible.
Our range of boys bikes include wheel sizes ranging from 12 inch to 24 inch which means you’ll be able to find the perfect sized bike for your son. All of our boys bikes are built to the highest standard and we carry only the best brands, all at incredible value.
Shop the best kids bikes for your kids from quality brands like Apollo, Radius, Rocket, Merida, and more. You can be sure you're buying the best kids bike at the best price with our Perfect Ride Guarantee backed up by our Best Price Guarantee. Shop online with click & collect, and in store at your local 99 Bikes in Auckland, Christchurch & Wellington today.
