Is a 20 inch bike good for a 6 year old?
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A 20 inch bike is generally the best fit to buy for 6 and 7-year-olds. If your child is already 8 or is a very tall 7-year-old, also consider 24-inch bikes as they would offer more room for growth.
What does a 20 inch bike mean?
The ’20 inch’ refers to the size of the wheels. Traditionally it is a common size and follows on from 14” and 16”, and then comes before 24”, 26” and beyond. It is also the wheel size of choice for the vast majority of BMX bikes.

What height is a 20-inch bike for?
Kids Bike Sizes Chart
Wheel Size | Age | Height |
---|---|---|
14″ | 2 – 4 years | 37 – 44″ |
16″ | 4 – 6 years | 41 – 48″ |
20″ | 5 – 8 years | 45 – 54″ |
24″ | 8 – 11 years | 49″ – 59″ |
Is 20-inch bike for adults?
Adults can definitely ride 20-inch BMX bikes, but it is recommended that they wear appropriate safety gear to keep themselves safe. This type of bike can be more difficult for adults than other types of bikes because the smaller wheels require a lot more balance and coordination in order to ride safely.

How tall should you be for a 20-inch bike?
Kid’s Bike Size Chart
Rider Age or Height | Suggested Size | |
---|---|---|
5 – 7 years | 3′ 4″ – 4′ 0″ | 16″ wheel diameter |
7 – 9 years | 4′ 0″ – 4′ 5″ | 20″ wheel diameter |
9 – 11 years | 4′ 5″ – 4′ 9″ | 24″ wheel diameter |
11+ years | 4′ 9″+ | 26″ wheel diameter |
Is a 20-inch bike too big for a 7 year old?
Most 8 and 9-year-olds will fit on a 20-inch wheel bike. Meanwhile, a 10-year-old (or older) will likely use the 24-inch size. Keep in mind that if your 10-year-old is smaller, they may still be more comfortable with a 20-inch bike wheel.