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?
651 products
Sort by
Sort by
Save $200.00
The Chase Edge Pro L Bike (2026) is a white and black BMX featuring a lightweight frame, thick tires, and elevated handlebars, displayed from a front-side angle on a white background. The Chase Edge Pro L Bike (2026) is a white and black BMX with large handlebars, a padded seat, thick tires, and a single gear, shown from a rear side angle.
Chase Edge Pro L Bike (2026)

$1,099.99 AUD

$1,299.99 AUD

Cement Grey
Slate Blue
20.5
Save $100.00
A black Wethepeople Havoc 22 Inch Bike with thick tires, straight handlebars, and a compact frame is shown in profile on a white background. This freestyle BMX is disc brake-ready for improved stopping power. The Wethepeople Havoc 22 Inch Bike, shown in black with thick tires, a padded seat, straight handlebars, and front and rear brakes against a white background, is also disc brake-ready for added stopping power.
Wethepeople Havoc 22 Inch Bike

$2,199.99 AUD

$2,299.99 AUD

Black
22.25
Sold out
Chase Element Pro XXXL Bike *scratch and dent* shown from a front angle on a white background, featuring red frame with black handlebars, seat, and tires plus Ikon carbon forks. Close-up of a red Chase Element Pro XXXL Bike *scratch and dent* frame showing a noticeable paint chip with visible white underlayer near the white logo, black design accents, and Ikon carbon forks.
Chase Element Pro XXXL Bike *scratch and dent*
$2,089.99 AUD
Black/Grey
Wine/Sand
Wine/ Sand ( Scratch and Dent )
22
The Academy Trooper 20 Inch Bike is a teal youth BMX with black tires, seat, and handlebars. "ACADEMY" is printed in white on the frame—an ideal choice for young riders trying their first BMX bike. The Academy Trooper 20 Inch Bike is a black beginner BMX with a straight top tube, thick tires, and "ACADEMY" on the frame—shown in side profile. Ideal for youth or anyone seeking a BMX bike for tricks.
Academy Trooper 20 Inch Bike

$499.99 AUD

Matte Black
Matte Orange
Sky Blue
Matte Mint
19.5
Sold out
A blue Chase Edge Junior Bike (2024) from the complete race bikes in the Chase Edge range, on a white background. A white Chase Edge Junior Bike (2024) on a white background.
Chase Edge Junior Bike (2024)

$1,194.99 AUD

Cement
Slate
18.75
Wethepeople Avenger 27.5 Inch Bike - Matt Cinnamon Metallic Wethepeople Avenger 27.5 Bike / Matt Charcoal Grey / 24.5TT
Wethepeople Avenger 27.5 Inch Bike

$1,899.99 AUD

Matt Charcoal Grey
Matt Cinnamon Metallic
24.5
Sold out
Redline PL 26 Inch Bike (2023) / Black / 22.2TT The Redline PL 26 Inch Bike is a black BMX cruiser with large tires, straight handlebars, and a minimalist chromoly steel frame, displayed against a white background.
Redline PL 26 Inch Bike

$1,499.99 AUD

Black
22.2
Save $154.00
Radio Darko 20 Bike / Neptune Green / 20.5TT Radio Darko 20 Bike / Matt Black / 20.5TT
Radio Darko 20 Inch Bike
From

$645.99 AUD

$799.99 AUD

Matt Black
Neptune Green
Magic Purple
Matte Black
White
20.521
Radio Cobalt Pro Bike / Black / 20.5TT Radio Cobalt Pro Bike / Metallic Yellow / 20.5TT
Radio Cobalt Pro Bike
$799.99 AUD
Black
Metallic Yellow
Black/White
Magic Olive Metallic
20.75
Sold out
A Radio Cobalt Mini Bike in black with a lightweight frame, front and rear brakes, and thin tires—an ideal entry level BMX race bike—shown on a white background. The Radio Cobalt Mini Bike is a blue BMX-style bicycle with a lightweight frame, black handlebars, and thin tires, shown side-on against a white background—ideal as an entry-level race bike for new BMX riders.
Radio Cobalt Mini Bike
$799.99 AUD
Black/Red
Cyan
Metallic Red
Black
Maniac Purple Metallic
17.5
Sold out
Fit Bike Co Series One 20 Inch Bike (2023) / Smoked Chrome / 20.25TT Fit Bike Co Series One 20 Inch Bike (2023) / Hot Rod Red / 20.25TT
Fit Series One 20 Inch Bike (2023)

$799.99 AUD

Smoked Chrome
Hot Rod Red
Gloss Black
Rootbeer
Slate Blue
Sunkist Pearl
20.2520.520.75
Save $193.00
The Fit CR26 Inch Bike is a mint green BMX with a cr-mo frame, black seat, handlebars, pedals, whitewall tires, and a simple frame design. The Fit CR26 Inch Bike, shown on a white background, features a black cr-mo frame, brown seat, and orange-rimmed tires.
Fit CR26 Inch Bike

$1,006.99 AUD

$1,199.99 AUD

Gloss Black
Sea Foam
23
Sold out
Fiend Type O 26 Inch Bike / Gloss Black / 22.75TT Fiend Type O 26 Inch Bike / Gloss Purple / 22.75TT
Fiend Type O 26 Inch Bike

$699.99 AUD

Gloss Black
Gloss Purple
22.75
Sold out
Fairdale Lookfar 700c Bike (2022) / Matte Black / S Fairdale Lookfar 700c Bike (2022) / Matte Black / M
Fairdale Lookfar 700c Bike
$597.99 AUD
Matte Black
Gloss Toothpaste
Nora V (Limited Edition) Matte Lavender
SMLXS
Sold out
Colony Bloody Oath 26in Bike / Gloss White / 23.85TT
Colony Bloody Oath 26 Inch Bike

$899.99 AUD

Gloss White
23.85
Sold out
Chase Element Pro 24 Cruiser (2022) / Sand / 21.5TT Chase Element Pro 24 Cruiser (2022) / Teal / 21.5TT
Chase Element Pro 24 Cruiser Bike

$2,358.99 AUD

Sand
Teal
21.5
Save $59.00
The Kink Drifter 26 inch Bike (2027) features a yellow frame, large black tires, a brown seat, and straight handlebars, all set against a white background with its sturdy chromoly build standing out. The Kink Drifter 26 inch Bike (2027), featuring a yellow frame and brown seat, is shown indoors on a wooden floor with other bicycles and gear in the background.
Kink Drifter 26 inch Bike (2027)

$1,039.99 AUD

$1,098.99 AUD

Fern Green
22.25
Sold out
The Kink Whip 20 XL Inch Bike (2027) is a silver full Chromoly BMX with black tires, black seat, and straight handlebars—perfect for beginner riders—pictured in side profile on a white background. The Kink Whip 20 XL Inch Bike (2027) is a silver full Chromoly BMX with black handlebars, seat, pedals, and tires, shown on a white background—perfect for beginner riders.
Kink Whip 20 XL Inch Bike (2027)

$899.99 AUD

Frost Silver
21
Sold out
A Kink Whip 20 Inch Bike (2027) with a silver full Chromoly frame, black tires and seat, and straight handlebars, shown from the side against a white background. The Kink Whip 20 Inch Bike (2027) is a silver BMX bike with full Chromoly construction, black handlebars, seat, pedals, and tires, shown against a white background.
Kink Whip 20 Inch Bike (2027)

$899.99 AUD

Frost Silver
20.5
Save $49.00
The Kink Setup XL 20 Inch Bike (2027), a black BMX for beginners with chromoly frame, thick tires, straight top tube, padded seat, and upright handlebars, is shown in side profile against a white background. The Kink Setup XL 20 Inch Bike (2027) is a matte tan BMX beginner bike featuring a durable chromoly frame, black tires, seat, pedals, and handlebars, displayed side-on against a white background.
Kink Setup XL 20 Inch Bike (2027)

$799.99 AUD

$848.99 AUD

Iridescent Black
Oxide Orange
21
Sold out
A Chase Edge Expert Bike (2024) on a white background. A Chase Edge Expert Bike (2024) on a white background.
Chase Edge Expert Bike (2024)

$1,194.99 AUD

Cement
Slate
19.75
Sold out
A blue Chase Edge Mini Bike (2024) on a white background. A white Chase Edge Mini Bike (2024) on a white background.
Chase Edge Mini Bike (2024)

$1,194.99 AUD

Cement
Slate
17.25
Sold out
A Chase Edge Micro 18 Bike (2024) in white and yellow on a white background. A Chase Edge Micro 18 Bike (2024) on a white background.
Chase Edge Micro 18 Bike (2024)

$1,168.99 AUD

Cement
Slate
16.25
Sunday Scout 20 Inch Bike (2023) / Matte Hot Pink / 20.75TT Sunday Scout 20 Inch Bike (2023) / Matte Sage Green / 20.75TT
Sunday Scout 20 Inch Bike

$999.99 AUD

Matte Sage Green
Matte Hot Pink
Matte Black
Matte Mustard
Gloss Pine Green
Matte Cool Mint
Matte Blue Lavender
Gloss Maroon
Gloss Metallic Dark Silver
20.7521

Showing 168 of 651