Size Guides

We are here to help you get the right sized BMX bike for your situation! With so many different bikes to choose from it can be quite daunting, but don't worry- It's easy! Just pick either Freestyle or Race, measure up your height and get cracking! If you have any questions shoot us an email at help@luxbmx.com

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

A 20 inch bike is the standard adult BMX and suits riders from about 147cm up. At this wheel size the top tube is what changes the fit, so pick that by height.

Rider heightWheel sizeTop tube
60 to 91cm12"12 to 12.5"
81 to 106cm14"14 to 14.5"
96 to 122cm16"16 to 16.5"
122 to 147cm18"18 to 18.5"
147 to 157cm20"19.75 to 20.25"
157 to 168cm20"20 to 20.5"
168 to 175cm20"20.25 to 20.75"
175 to 183cm20"20.5 to 21"
183 to 190cm and up20"20.75 to 21.5"
160cm and up22"21 to 22.25"
160cm and up24"21.75 to 22"
160cm and up26"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.

Read the full buying guide

BMX race bike sizing

Race frames are sized by class, and the class you ride is set by rider height rather than age.

SizeRider heightTop tube
Micro (18" wheels)Under 120cm16.25"
Mini (20" wheels)110 to 140cm17 to 18"
Junior120 to 150cm18.25 to 18.75"
Expert130 to 170cm19.5 to 19.75"
Expert XL145 to 170cm20 to 20.75"
Pro150 to 175cm20.25 to 20.75"
Pro XL165 to 180cm21 to 21.25"
Pro XXL170 to 185cm and up21.5 to 21.85"
Pro XXXL175cm and up22"
Pro XXXXL180cm and up22.5"
Cruiser (24" wheels)175cm and up21.5" 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.

Read the full buying guide

Buying a part?
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A gray and black Chase Element Expert Race Bike (2027) with thin tires, straight handlebars, and “CHASE” branding on the frame, crafted from a lightweight 7005 T6 alloy for enhanced durability and performance. This pro-level BMX bike—part of the acclaimed Chase Element lineup—is shown on a white background. A rear left view of the Chase Element Expert Race Bike (2027), a pro-level BMX featuring a lightweight 7005 T6 alloy frame, flat seat, and knobby tires in a striking black and white color scheme—drawing inspiration from the renowned Chase Element series.
Chase Element Expert Race Bike (2027)

$2,299.99 AUD

Grey/Light Grey
Purple/Light Blue
20 - Right Hand Drive
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A Chase Edge Mini CF Race Bike (2027) in blue with black tires and a prominent “CHASE” logo on the frame, equipped with a lightweight carbon fork, displayed from a front-side angle against a white background. A Chase Edge Mini CF Race Bike (2027) in beige, featuring a carbon Chase Edge CF fork, black handlebars, seat, wheels, and chain, is displayed at a slight left-facing angle against a white background.
Chase Edge Mini CF Race Bike (2027)

$1,799.99 AUD

Dark Midnight
Gold Sand/Dark Grey
17.25 - Right Hand Drive
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Chase Edge Pro XL CF Race Bike (2027), a blue and black BMX race bike featuring thick tires, a black seat, carbon fork, and “CHASE” branding on the frame, is shown from a front-side angle on a white background. Chase Edge Pro XL CF Race Bike (2027) in blue, shown in profile on a white background, features black wheels, a minimalist frame design, and a Chase Edge CF carbon fork.
Chase Edge Pro XL CF Race Bike (2027)

$1,799.99 AUD

21 - Right Hand Drive
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The Chase Edge Pro XXL Race Bike (2027) features a sturdy hydroformed 6061 aluminum Edge frame, thick tires, and bold “Chase” branding on the side, all presented against a white background. A Chase Edge Pro XXL Race Bike (2027) with a hydroformed 6061 aluminium Edge frame, black finish, compact design, 20-inch wheels, single gear, flat pedals, and a straight handlebar is displayed on a white background.
Chase Edge Pro XXL Race Bike (2027)

$1,499.99 AUD

Black/Grey
21.5 - Right Hand Drive
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The Chase Edge Expert XL Race Bike (2027) is a black BMX with “CHASE” emblazoned on its hydroformed 6061 aluminium frame, equipped with thick tires, upright handlebars, and a compact seat. Positioned against a white background, this lightweight race bike is built for both performance and style. The Chase Edge Expert XL Race Bike (2027) is shown in a side view against a white background, featuring a black and gray color scheme with thin tires, flat pedals, a compact seat, and straight handlebars. This lightweight race bike boasts a hydroformed 6061 aluminum frame inspired by the Chase Edge race bike design for optimal performance.
Chase Edge Expert XL Race Bike (2027)

$1,499.99 AUD

Black/Grey
20 - Right Hand Drive
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A blue Chase Edge Expert XL CF Race Bike (2027) with black tires, a straight handlebar, and a compact frame featuring a sleek carbon fork. The bike is positioned at an angle facing left. A tan Chase Edge Expert XL CF Race Bike (2027) with black handlebars, seat, and wheels, featuring the word “CHASE” on the frame. This model is equipped with a Chase Edge CF carbon fork for enhanced performance and control.
Chase Edge Expert XL CF Race Bike (2027)

$1,799.99 AUD

Dark Midnight
Gold Sand/Dark Grey
20 - Right Hand Drive
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A beige Chase Edge Junior CF Race Bike (2027) is displayed on a white background, featuring a carbon fork, black handlebars, seat, and tires. The bike showcases “Chase” branding and is designed with a lightweight frame and thin, knobby tires ideal for BMX racing. Chase Edge Junior CF Race Bike (2027) in blue, featuring black handlebars, seat, and tires, is shown angled from the front left side. The frame displays “CHASE” in white lettering and includes a lightweight carbon fork for enhanced performance—ideal for serious BMX racers.
Chase Edge Junior CF Race Bike (2027)

$1,799.99 AUD

Dark Midnight
Gold Sand/Dark Grey
18.75 - Right Hand Drive
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A black Chase Edge Pro XL Race Bike (2027) BMX bicycle with “CHASE” branding on the frame, featuring an integrated head tube, hydroformed 6061 aluminium construction, knobby tires, straight handlebars, and a single gear. The Chase Edge Pro Race Bike (2027) is shown in a side view on a white background, featuring an integrated head tube, lightweight hydroformed 6061 aluminium frame, black finish, knobby tires, flat pedals, and straight handlebars.
Chase Edge Pro XL Race Bike (2027)

$1,499.99 AUD

Black/Grey
21 - Right Hand Drive
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Chase Edge Micro 18 Race Bike (2027) in black, featuring a lightweight frame, flat handlebars, and thin tires, photographed on a white background. A Chase Edge Micro 18 Race Bike (2027) in black, featuring a lightweight frame, flat handlebars, single gear, and thin tires, shown from the side on a white background.
Chase Edge Micro 18 Race Bike (2027)

$1,499.99 AUD

Black/Grey
16.25 - Right Hand Drive
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The Chase Edge Expert Race Bike (2027), featuring a lightweight aluminium frame, flat handlebars, thin tires, and an integrated head tube in black and blue, is shown against a white background. The Chase Edge Expert Race Bike (2027) is shown in profile on a white background, featuring a lightweight aluminum frame, integrated head tube, flat handlebars, single gear, and 20-inch wheels in a sleek black finish.
Chase Edge Expert Race Bike (2027)

$1,499.99 AUD

Black/Grey
19.75 - Right Hand Drive
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Chase Edge Pro Cruiser Race Bike (2027) in black with bold white “CHASE” branding, equipped with thick tires and straight handlebars, showcasing an integrated head tube and a hydroformed 6061 aluminum frame, is positioned at an angle on a white background. A side view of the Chase Edge Pro Cruiser Race Bike (2027) in black, featuring a hydroformed 6061 aluminium frame, thick tires, flat handlebars, and an integrated head tube. Shown against a white background, this race bike showcases its lightweight design with no visible suspension for optimal performance.
Chase Edge Pro Cruiser Race Bike (2027)

$1,499.99 AUD

Black/Grey
21.5 - Right Hand Drive
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The Chase Edge Junior Race Bike (2027) features a hydroformed aluminum frame in black with “CHASE” printed on it, thin tires, a raised seat, straight handlebars, and an integrated head tube for a sleek design. The Chase Edge Junior Race Bike (2027) is a black and gray BMX race bike featuring thin tires, upright handlebars, a narrow seat, and prominent “CHASE” branding on its hydroformed aluminium frame with an integrated head tube, displayed in profile against a white background.
Chase Edge Junior Race Bike (2027)

$1,499.99 AUD

Black/Grey
18.75 - Right Hand Drive
Sold out
The Chase Edge Pro Race Bike (2027) is a black and gray BMX with thick tires, a padded seat, an integrated head tube, and “CHASE” branding on its hydroformed 6061 aluminum frame, shown on a white background. The Chase Edge Pro Race Bike (2027) is shown in a side view on a white background, featuring an integrated head tube, lightweight hydroformed 6061 aluminium frame, black finish, knobby tires, flat pedals, and straight handlebars.
Chase Edge Pro Race Bike (2027)

$1,499.99 AUD

Black/Grey
20.5 - Right Hand Drive
Sold out
The Chase Race Series Mini Race Bike (2027), featuring a black BMX-style frame, blue handlebars, narrow tires, and a lightweight build—ideal as an entry-level BMX—is displayed on a white background. Side view of a Chase Race Series Mini Race Bike (2027) in black, showcasing thin tires, a sloped top tube, straight handlebars, and minimal accessories on a plain white background—ideal as an entry level BMX.
Chase Race Series Mini Race Bike (2027)

$899.99 AUD

Gradient Galaxy
Dark Grey/Holographic
17.25 - Right Hand Drive
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A Chase Race Series Junior Race Bike (2027) featuring a blue and pink gradient frame, black wheels, and blue handlebar grips, displayed on a white background. The Chase Race Series Junior Race Bike (2027), a black BMX-style bicycle featuring a padded seat, straight handlebars, and slim tires, is displayed on a white background.
Chase Race Series Junior Race Bike (2027)

$899.99 AUD

Gradient Galaxy
Dark Grey/Holographic
18.75 - Right Hand Drive
Sold out
A Chase Race Series Pro Race Bike (2027) in black, featuring “CHASE” branding, two large tires, a straight handlebar, and a padded saddle is displayed on a white background. This entry-level model from the Chase Race Series Pro line is designed for riders ready to begin their BMX racing journey. Side view of the Chase Race Series Pro Race Bike (2027) in black, featuring a lightweight frame, thick tires, and straight handlebars, displayed against a plain white background—an ideal entry-level BMX racing bike for aspiring riders.
Chase Race Series Pro Race Bike (2027)

$899.99 AUD

Gradient Galaxy
Dark Grey
20.5 - Right Hand Drive
Sold out
Chase Race Series Expert Race Bike (2027) in black, featuring blue handlebar grips, a padded seat, and thin tires, displayed at a slight angle on a white background—an ideal entry-level race bike for aspiring riders. A Chase Race Series Expert Race Bike (2027) in black, featuring a lightweight frame, thin tires, flat handlebars, and a single gear, is shown in side profile on a white background—an excellent entry-level race bike for aspiring riders.
Chase Race Series Expert Race Bike (2027)

$899.99 AUD

Gradient Galaxy
Dark Grey/Holographic
19.75 - Right Hand Drive
Sold out
Certainly! Here’s a revised version of the sentence using your product data: The Chase Race Series Micro 18 Race Bike (2027) is an 18-inch BMX bike featuring a gradient blue and pink frame, black wheels, blue handlebar grips, and a black seat—all displayed on a white background—making it perfect as a kids’ BMX race bike. The Chase Race Series Micro 18 Race Bike (2027) is displayed at an angle on a white background, featuring a black and gray color scheme, lightweight frame, large tires, and a padded seat. Designed as an ideal BMX race bike for kids, this model delivers the speed and durability young riders need for the track.
Chase Race Series Micro 18 Race Bike (2027)

$899.99 AUD

Gradient Galaxy
Dark Grey/Holographic
16.25 - Right Hand Drive
New
The Inspyre EVO-C Pro Cruiser Race Bike (2027), featuring a silver and black design with flat handlebars, front and rear wheels, a lightweight EVO-C frame, and SD B-85 cranks, is displayed on a plain white background. The Inspyre EVO-C Pro Cruiser Race Bike (2027), featuring a silver and black BMX-style design with a lightweight frame, flat handlebars, thick tires, and an advanced carbon Pride fork, is shown in side view against a white background.
Inspyre EVO-C Pro Cruiser Race Bike (2027)

$2,299.99 AUD

Black/Grey
21.85 - Right Hand Drive
New
The Inspyre EVO-C Pro XXL Race Bike (2027) is a silver BMX bike with black handlebars, seat, and tires, shown from a front-side angle on a plain white background. Featuring an advanced carbon Pride fork and SD B-85 cranks, this model delivers both strength and style for any rider. The Inspyre EVO-C Pro XXL Race Bike (2027) is showcased from an angled side view, featuring a black and silver color scheme, straight handlebars, thick tires, a lightweight frame with SD B-85 cranks, and a carbon Pride fork.
Inspyre EVO-C Pro XXL Race Bike (2027)

$2,299.99 AUD

Black/Grey
21.85 - Right Hand Drive
New
The Inspyre EVO-C Expert Race Bike (2027) is displayed against a plain white background, featuring a black and silver frame, thick tires, a small seat, straight handlebars, and a single gear. Equipped with SD B-85 cranks and a carbon Pride fork, this model combines sleek style with high-performance functionality. The Inspyre EVO-C Expert Race Bike (2027), a BMX-style bicycle featuring a lightweight frame, SD B-85 cranks, black tires, a carbon Pride fork, and straight handlebars in black and white colors, photographed on a plain white background.
Inspyre EVO-C Expert Race Bike (2027)

$2,299.99 AUD

Black/Grey
19.5 - Right Hand Drive
Sold out
The Inspyre EVO-C Pro L Race Bike (2027), featuring a black and silver compact frame with thick tires, flat handlebars, and SD B-85 cranks, is displayed against a plain white background. A black and silver Inspyre EVO-C Pro L Race Bike (2027) with thick tires, a raised seat, and straight handlebars is displayed against a white background. This BMX bike features an Inspyre EVO-C frame paired with robust SD B-85 cranks for powerful pedaling.
Inspyre EVO-C Pro L Race Bike (2027)

$2,299.99 AUD

Black/Grey
20.5 - Right Hand Drive
New
The Inspyre EVO-C Pro L Race Bike (2027), featuring a black and silver compact frame with thick tires, flat handlebars, and SD B-85 cranks, is displayed against a plain white background. The Inspyre EVO-C Pro L Race Bike (2027) is displayed on a white background, featuring a silver and black BMX design with a straight top tube, black handlebars, and black tires. It comes equipped with SD B-85 cranks and a sleek carbon Pride fork for enhanced performance.
Inspyre EVO-C Pro XL Race Bike (2027)

$2,299.99 AUD

Black/Grey
21.25 - Right Hand Drive
Sold out
A silver Inspyre EVO Pro L Race Bike (2027) with black handlebars, wheels, and seat is set against a plain white background. The aluminium 6061-T6 frame features yellow and green accents. Inspyre EVO Pro L Race Bike (2027) in red, featuring a lightweight aluminium 6061-T6 frame, black seat, black handlebars, and black wheels, displayed on a white background.
Inspyre EVO Pro L Race Bike (2027)

$1,499.99 AUD

20.5 - Right Hand Drive

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