BMX Race Sizing Guide
| Rider Height | Frame Size | Toptube Length | Stem Length | Bar Rise | Bar Width | Crank Length | Gearing |
|---|---|---|---|---|---|---|---|
| 4'4" & under | Micro | 15" - 16.5" | Mini: 25mm - 35mm | 2" - 2.5" | 20" - 22.5" | 145 - 155mm | 41-43 / 16 |
| 4'2" - 4'10" | Mini | 16" - 17.5" | Mini-Mini XL: 30mm - 40mm | 2" - 3.5" | 21" - 23.5" | 155 - 165mm | 41-43 / 16 |
| 4'6" - 5'1" | Junior | 17" - 18.5" | Mini XL-Expert: 40mm - 45mm | 3" - 5" | 22" - 25" | 160 - 175mm | 42-43 / 16 |
| 5'0" - 5'4" | Expert | 18.5" - 19.5" | Expert-Pro: 43mm - 48mm | 5" - 7" | 25.5" - 27" | 170 - 175mm | 42-43 / 16 |
| 5'2" - 5'6" | Expert XL | 19.5" - 20" | Expert-Pro: 43mm - 48mm | 6" - 7" | 25.5" - 27" | 170 - 175mm | 42-43 / 16 |
| 5'3" - 5'8" | Pro | 20" - 20.5" | Pro: 50mm - 55mm | 7" - 8" | 27" - 28" | 175 - 180mm | 43-44 / 16 |
| 5'7" - 6' | Pro XL | 20.5" - 21.25" | Pro XL: 50mm - 55mm | 8" + | 28" | 180 - 190mm | 44 / 16 & over |
| 6' & over | Pro XXL | 21.25" - 22" | Pro XXL: 52mm - 60mm | 8" + | 28" | 180 - 190mm | 44 / 16 & over |
BMX Freestyle Sizing Guide
| Wheel Size | Toptube Length | Recommended Rider Height (Approximate) |
|---|---|---|
| 12" | 12" - 13" | 2'4" to 3' |
| 14" | 14" - 14.5" | 2'8" to 3'6" |
| 16" | 16" - 16.5" | 3'2" to 4' |
| 18" | 18" - 18.5" | 3'10" to 4'8" |
| 20" | 18.5" - 20" | 4'8" to 5'2" |
| 20" | 20" | 5' to 5'4" |
| 20" | 20.25" | 5'2" to 5'6" |
| 20" | 20.5" | 5'4" to 5'8" |
| 20" | 20.75" | 5'6" to 6' |
| 20" | 21" | 5'8" to 6'2" |
| 20" | 21.25" | 6' + |