Wethepeople
Kink
Sunday Bikes
Radio
Cult
Fit
Odyssey
Federal
Eclat
BSD
Meybo
Chase
Vans
Which guide do you need?
Pick the guide that matches what you are shopping for. If you are between sizes or buying for someone who is still growing, email help@luxbmx.com with their height and we will tell you what we would put them on.
Complete bikes
Freestyle bike sizing
Street, park, dirt and kids bikes. Wheel size by rider height, then top tube.
Complete bikes
Race bike sizing
Micro through to Pro XXXXL and cruiser, sized by class and rider height.
Frames
Frame sizing
Buying a frame on its own? Top tube length is the number that decides the fit.
Protective gear
Helmet sizing
Measured around the head, nothing to do with bike size.
20 inch BMX sizing
| 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 you land in two bands, riding style breaks the tie: longer for flow, trails and transitions, shorter for technical street and park.
BMX race bike sizing
| Size | Rider height | Top tube |
|---|---|---|
| Micro (18" wheels) | Under 120cm | 16.25" |
| Mini (20" wheels) | 110 to 140cm | 17 to 18" |
| Junior | 120 to 150cm | 18.25 to 18.75" |
| Expert | 130 to 170cm | 19.5 to 19.75" |
| Expert XL | 145 to 170cm | 20 to 20.75" |
| Pro | 150 to 175cm | 20.25 to 20.75" |
| Pro XL | 165 to 180cm | 21 to 21.25" |
| Pro XXL | 170 to 185cm and up | 21.5 to 21.85" |
| Pro XXXL | 175cm and up | 22" |
| Pro XXXXL | 180cm and up | 22.5" |
| Cruiser (24" wheels) | 175cm and up | 21.5" and up |
Heights overlap between classes on purpose. Where you land in two, a growing rider is usually better on the larger, and a rider who wants the bike to turn faster on the smaller. Some brands label the Pro size Pro L, with the same fit.
