Sizing Charts Components

MaximumBMX has put together the following suggestions to help you with sizing questions. Keep in mind that these are only guidelines. If you have an questions you can reach us at 317-462-6008.

Frame Sizing Charts

Rider
Height
Frame Size Top Tube
Length
Stem Length Bar Rise Bar Width Crank Length Gearing
4'0" & Under Micro-Mini 15" - 16" 0 - 35mm 2" - 2.5" 20" - 22.5" 150mm - 160mm 41 - 43/F16R
4'0" - 4'6" Mini 16" - 17" 35 - 45mm 2" - 3.5" 21"- 23.5" 155mm -165mm 41 - 43F/16R
4'4" - 4'10" Junior 17" - 18.5" 45 - 46mm 3" - 5" 22" - 25" 160mm -175mm 42 - 43F/16R
4'8" - 5'4" Expert 18.5" - 19.5" 46mm 5" - 7" 25.5" - 27" 170mm -175mm 42 - 43F/16R
5'4" - 5'10" Pro 20" - 20.5" 46 - 52 mm 7" - 8" 27" - 28" 175mm -180mm 43 - 44F/16R
5'10" & Over Pro XL & XXL 20.5" & Over 52 - 60mm 7" - 8" 28" 180mm -185mm 44F/16R & Up

Rim Sizing Charts

Rider Weight Rim Size
50 - 90 Pounds 20" / 24" x 1 - 1/8"
85 - 120 Pounds 20" / 24" x 1 - 3/8"
115 - 150 Pounds 20" / 24" x 1.5"
140 Pounds & Above 20" / 24" x 1.75"

Crank Arm Length Sizing Charts

Inseam Length: 19" 20" 21" 22" 23" 24" 26" 27" 28"-29" 30"-31"
Crank Length: 135mm 140mm 145mm 150mm 155mm 160mm 165mm 170mm 175mm 180mm