Rough Bike / Frame Size Guide
Which Size Bike Does My Child Require?
Children's bikes are generally measured by wheel size, rather than by frame size. Remember children do grow very quickly and you need to take this into consideration when buying a kids bike, However, if you buy a bike that is simply too big for your child, you will compromise your child's safety, and ultimately discourage your child from cycling.
Which Size Bike Do I Require?
Adults bikes are generally measured by frame size. This is normally the measurement between the centre of the bottom bracket to the top of the seat tube.
Children's bikes are generally measured by wheel size, rather than by frame size. Remember children do grow very quickly and you need to take this into consideration when buying a kids bike, However, if you buy a bike that is simply too big for your child, you will compromise your child's safety, and ultimately discourage your child from cycling.
| Age of Child | Wheel Size |
| 2 to 4 Years | 12 inches |
| 3 to 5 Years | 14 inches |
| 4 to 7 Years | 16 inches |
| 5 to 8 Years | 18 inches |
| 6 to 10 Years | 20 inches |
| 10 to 13 Years | 24 inches |
Which Size Bike Do I Require?
Adults bikes are generally measured by frame size. This is normally the measurement between the centre of the bottom bracket to the top of the seat tube.
| Riders Average Height | Inside Leg Measurement | Mainly Off Road Use (26inch Wheels) |
Mainly On Road Use (26inch / 700c Wheels) |
Racing Bikes (700c Wheels) |
| In Feet & Inches | Inches (centimetres) | Frame Size Required | Frame Size Required | Frame Size Required |
| up to 5 feet 3 | up to 28"(71cm) | up to 14 inches | up to 15 inches / 42cm | up to 50cm |
| 5 feet 3 to 5 feet 6 | 28" to 30"(71cm to 76cm) | 14 to 16 inches | 15 to 17 inches / 40 to 46cm | 50 to 53cm |
| 5 feet 6 to 5 feet 9 | 30" to 32"(76cm to 81cm) | 16 to 18 inches | 17 to 19 inches / 44 to 50cm | 53 to 56cm |
| 5 feet 9 to 6 feet 0 | 32" to 34"(81cm to 86cm) | 18 to 20 inches | 19 to 21 inches / 48 to 54cm | 56 to 59cm |
| above 6 foot | above 34"(above 86cm) | above 20 inches | 21 inches / 52 cm | 58cm+ |