Radio Saiko 18 Inch Bike, featuring red-rimmed Salt Tracer tyres and "RADIOBIKECO" branding, shown side-on against a white background. A stylish and high-performance kids BMX bike perfect for young riders.
Radio Saiko 18 Bike (2021) / Purple / 18TT
Radio Saiko 18 Bike (2021) / Black / 18TT
The Radio Saiko 18 Inch Bike, featuring a turquoise frame with black handlebars and seat, plus sleek Salt Tracer Tyres, stands out against a white background.
The Radio Saiko 18 Inch Bike is a black BMX with red-rimmed wheels, featuring a Radio Bikes sticker on the frame and equipped with durable Radio Am Chromoly Three Piece Cranks.
Close-up of the black crankset, pedal, chainring, and rear wheel with a pink rim and Salt Tracer Tyres on the Radio Saiko 18 Inch Bike, shown against a white background.
Close-up of a black bicycle front fork featuring a black tire with "Tracer 18 x 2.20" markings and a red-rimmed wheel—showcasing the Radio Saiko 18 Inch Bike with Salt Tracer Tyres.
Close-up of the black "RADIO" seat on the Radio Saiko 18 Inch Bike in teal, featuring part of the rear wheel and brake cable—ideal for young BMX fans.
Close-up of a black seat labeled "RADIO" on the frame of the Radio Saiko 18 Inch Kids BMX Bike, shown against a white background.
Close-up of the black handlebar, stem, and front brake cable on the Radio Saiko 18 Inch Bike, with "RADIOBIKES" branding on the frame and Salt Tracer Tyres visible.
Close-up of a black RADIOBIKECO. crank, chainring, and pedal beside the rear wheel on a Radio Saiko 18 Inch Bike kids BMX with Salt Tracer Tyres.
Close-up of black BMX handlebars and stem with visible cables; "RADIOBIKECO." logo partially shown on the frame, featuring Salt Tracer Tyres on the Radio Saiko 18 Inch Bike—an ideal kids BMX bike.
Close-up of the Radio Saiko 18 Inch Bike’s rear wheel, featuring a black RADIO-labeled hub, black spokes, red rim, and Salt Tracer Tyres against a white background.
Close-up of a turquoise Radio Saiko 18 Inch Bike frame featuring a black pedal crank, chainring, chain, and rear tire with Salt Tracer Tyres. The crank arm displays the "RADIOBIKECO" logo.
Close-up of the rear wheel on the Radio Saiko 18 Inch Bike, featuring a black "RADIO" hub, spokes, Salt Tracer Tyres, and a mint green frame.
The Radio Saiko 18 Inch Bike, a black BMX for kids with straight handlebars and a compact frame, is displayed in side profile on a white background.
The Radio Saiko 18 Inch Bike is a black BMX kids bike featuring teal rims, a padded seat, and standard handlebars, shown against a white background.
A Radio Saiko 18 Inch Bike in red with black tires, pedals, and handlebars is displayed in a side view on a white background.

Radio Saiko 18 Inch Bike

$799.99 AUD

Or 4 payments of $199.99 AUD with

Recommended Rider Height:

122-147cm

Colour

Top Tube Length

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The Radio Saiko 18 Inch Bike, a black BMX for kids with straight handlebars and a compact frame, is displayed in side profile on a white background.

Radio Saiko 18 Inch Bike / Black / 18

$699.99 AUD

Price match request

RABK204-26-BLK

Sold Out
Radio Saiko 18 Bike (2021) / Purple / 18TT

Radio Saiko 18 Inch Bike / Purple / 18

$799.99 AUD

Price match request

RABK142-21-PUR

Sold Out
Radio Saiko 18 Inch Bike, featuring red-rimmed Salt Tracer tyres and "RADIOBIKECO" branding, shown side-on against a white background. A stylish and high-performance kids BMX bike perfect for young riders.

Radio Saiko 18 Inch Bike / Black/Red / 18

$799.99 AUD

Price match request

RABK142-25-BKR

In Stock
The Radio Saiko 18 Inch Bike, featuring a turquoise frame with black handlebars and seat, plus sleek Salt Tracer Tyres, stands out against a white background.

Radio Saiko 18 Inch Bike / Mint / 18

$799.99 AUD

Price match request

RABK142-25-MIN

Sold Out
The Radio Saiko 18 Inch Bike is a black BMX kids bike featuring teal rims, a padded seat, and standard handlebars, shown against a white background.

Radio Saiko 18 Inch Bike / Urban Grey Metallic / 18

$699.99 AUD

Price match request

RABK204-26-GRY

Sold Out
A Radio Saiko 18 Inch Bike in red with black tires, pedals, and handlebars is displayed in a side view on a white background.

Radio Saiko 18 Inch Bike / Deep Red Metallic / 18

$699.99 AUD

Price match request

RABK204-26-RED

Sold Out

Description

This bike is absolutely psycho- just as the name suggests! Radio have outdone themselves with this formidable bike and the specs tab proves it! Some of the incredible parts installed on this beast include Salt Tracer Tyres in a nice and wide 2.2", Radio Am Hub Set, Radio Am Chromoly Three Piece Cranks, Salt Pro Headset and loads more. If you are looking for a bike for your kids to thoroughly enjoy- look no further!

Specifications
Frame - Radio 'Saiko 18' frame, Cr-Mo down tube, 1020 hi-ten
Fork - Radio 'Saiko 18' fork, 1020 hi-ten, crmo steerer, tapered legs
Handlebar - Radio 'AM' 18 bar, 1020 hi-ten
Grips - Radio 'AM' grips, flangeless , 150mm
Stem - Salt 'Junior' top loading stem, 40mm reach
Headset - Salt 'Pro' int. headset, sealed bearing
Gyro - Holes for removable tabs
Brake lever - Radio 'AM' alloy brake lever
Brake - Radio 'AM' alloy u-brake rear
Crank - Radio 'AM' 3pc crank, tubular, Cr-Mo, 152mm, 8 spline
BB - Mid size, press fit, sealed bearing
Pedals - Radio 'Pro' nylon fibreglass pedals
Chain - Salt 'AM' chain, WZ1 type
Sprocket - Radio 'Vision' steel 25T sprocket
Driver - 9T cassette driver, loose ball
Front hub - Radio 'AM' hub, alloy, loose ball, 3/8″s male axle, 36H
Rear hub - Radio 'AM' cassette hub, alloy, semi-sealed, 9T, 14mm axle, 36H
Front rim - Radio 'AM' rim, single wall
Rear rim - Radio 'AM' rim, single wall
Seat - Radio 'Century' slim padded combo seat
Seat clamp - Radio slim alloy seat camp
Tyres - Salt 'Tracer' tyres, 2.2″ front & rear
Weight - 10.62kg

Frame geometry
Top tube length - 18″
Chain stay length - 12.2″
Head tube angle - 75°
Seat tube angle - 71.5°
Bottom bracket height - 10.75″
Standover height - 7.5″

Handlebar geometry
Rise - 7.9″
Width - 26.5″
Backsweep - 10°
Upsweep - 3°

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