18 Inch Bikes
18 inch BMX bikes are perfect for the rider that isn't quite big enough to throw around a full sized BMX bike. 18 inch bikes are generally suited best for riders that are around 122cm - 147cm tall and 7-11 years of age. This is the size where the big tricks start happening so it is important to get the bike that most matches your style! Make sure you know what you're shopping for and read our Size Guide.
This range of high end 18-inch BMX bikes here at LUXBMX in Brisbane, Australia are designed for BMX freestyle. They typically have a smaller frame and wheels than traditional BMX bikes, which makes them more agile and easier to manoeuvre. They are also designed with stronger components to withstand the demands of performing tricks and shredding. We stock bikes from brands that we trust, so these aren't your typical department store bikes, these are designed with BMX in mind which means that they are much better and of a higher quality. Whether you are looking for an 18 inch boys bike or an 18 inch girls bike- we have you covered.
Enter the rider's height and every bike that fits them shows up below. Measure standing against a wall in riding shoes.
Bike size guide
An 18 inch bike suits a rider of about 122 to 147cm, usually 7 to 11 years old, on an 18 to 18.5 inch top tube. It is the last step before a full size 20 inch.
| Rider height | Wheel size | Top tube |
|---|---|---|
| 60 to 91cm | 12" | 12 to 12.5" |
| 81 to 106cm | 14" | 14 to 14.5" |
| 96 to 122cm | 16" | 16 to 16.5" |
| 122 to 147cm | 18" | 18 to 18.5" |
| 147 to 157cm | 20" | 19.75 to 20.25" |
| 157 to 168cm | 20" | 20 to 20.5" |
| 168 to 175cm | 20" | 20.25 to 20.75" |
| 175 to 183cm | 20" | 20.5 to 21" |
| 183 to 190cm and up | 20" | 20.75 to 21.5" |
| 160cm and up | 22" | 21 to 22.25" |
| 160cm and up | 24" | 21.75 to 22" |
| 160cm and up | 26" | 22 to 23" |
Sizes overlap on purpose, so personal preference comes into it. If your rider is near 147cm and still growing, look at a 20 inch instead: it is the size they will keep riding.
How to measure
Stand your rider against a wall in the shoes they ride in, heels flat, and mark the top of their head. Measure from the floor to the mark.
- Between an 18 and a 20? Take the 20. It is the size they will keep riding, and an 18 gets outgrown quickly.
- They should be able to stand over the top tube with both feet flat on the ground.
Not sure? Send us their height and we will tell you what we would put them on.
Bike size guide
An 18 inch bike suits a rider of about 122 to 147cm, usually 7 to 11 years old, on an 18 to 18.5 inch top tube. It is the last step before a full size 20 inch.
| Rider height | Wheel size | Top tube |
|---|---|---|
| 60 to 91cm | 12" | 12 to 12.5" |
| 81 to 106cm | 14" | 14 to 14.5" |
| 96 to 122cm | 16" | 16 to 16.5" |
| 122 to 147cm | 18" | 18 to 18.5" |
| 147 to 157cm | 20" | 19.75 to 20.25" |
| 157 to 168cm | 20" | 20 to 20.5" |
| 168 to 175cm | 20" | 20.25 to 20.75" |
| 175 to 183cm | 20" | 20.5 to 21" |
| 183 to 190cm and up | 20" | 20.75 to 21.5" |
| 160cm and up | 22" | 21 to 22.25" |
| 160cm and up | 24" | 21.75 to 22" |
| 160cm and up | 26" | 22 to 23" |
Sizes overlap on purpose, so personal preference comes into it. If your rider is near 147cm and still growing, look at a 20 inch instead: it is the size they will keep riding.
How to measure
Stand your rider against a wall in the shoes they ride in, heels flat, and mark the top of their head. Measure from the floor to the mark.
- Between an 18 and a 20? Take the 20. It is the size they will keep riding, and an 18 gets outgrown quickly.
- They should be able to stand over the top tube with both feet flat on the ground.
Not sure? Send us their height and we will tell you what we would put them on.
$364.99 AUD
Regular price$398.99 AUD
or $91.24 a fortnight$699.99 AUD
or $174.99 a fortnight$799.99 AUD
Regular price$859.99 AUD
or $199.99 a fortnight$719.99 AUD
Regular price$748.99 AUD
or $179.99 a fortnightLUXBMX carries Australia's biggest range of Freestyle & Race BMX Bikes, we stock all brands and models that we believe in, and truly stand by every Bike you see listed. We have Bikes available for every budget, and be sure to reach out if you need any further expert advice...
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