Nav Menu
Bikes & Frames

Shop All Bikes

Shop Bikes on Sale

Buy New Bikes Online

Buy Used Bikes Online

Shop Bikes With AfterPay


Need Our Help?

How To Choose the Right Bike

Popular Bikes

Road

Mountain

E-Bikes

Gravel Bike

BMX

Cyclocross/CX

Triathlon & Time Trial

Touring

Lifestyle & Commuter

City E-Bikes

E-Mountain Bikes

Road E-Bikes

E-Cargo Bikes

Flat Bar Road

 

Hybrid

Fixie

Urban

Vintage

Electric Scooters

Bike Frames

Road Bike Frames

Mountain Bike Frames

Triathlon & TT Frames

Gravel Bike Frames

Popular Bike Brands

Giant

Specialized

Trek

Reid

Marin

Factor

Kids

All Kids Bikes

Balance Bikes

Kids Scooters

Kids Bikes on Sale

Guide to Buying Kids Bikes

Kids Bikes by Size (Height Range)

Kids Bikes 12" (85-100cm)

Kids Bikes 14" (95-110cm)

Kids Bikes 16" (100-115cm)

Kids Bikes 18" (100-120cm)

Kids Bikes 20" (115-135cm)

Kids Bikes 24" (130-145cm)

Kids Bikes 26" (145cm+)

Accessories

Kids Helmets

Handlebar Mirrors

Baskets

Bike Trailers

Child Seats

Scooter Parts

Popular Kids Bike Brands

ByK

Little Cycles

Cruzee

Reid

Banwood

Neo

Cyclops

Clothing

Shop All Clothing

Shop Clothing On Sale


International Shipping

Shop Cycling Emporium

Upper Body

Short Sleeve Jerseys

Long Sleeve Jerseys

Sleeveless Jerseys

Vests

Jackets

Lower Body

Shorts

Mountain Bike Shorts

Bib Shorts

Cycling Tights

Mountain Bike Pants

Essentials

Gloves

Socks

Warmers & Base Layers

Headwear

T-Shirts

Caps

Featured

Compression Garments

Jersey & Knick Sets

Body Armour

Tri Suits

Popular Clothing Brands

BBB

Fox

Mr Simple

Pearl Izumi

Santini

The Big Ring

Tineli

ZeroRH

Black Sheep Cycling

Shoes & Helmets

Shop All Shoes

Shop All Shoes On Sale

Shop All Helmets

Shop All Helmets On Sale

Shop with Afterpay


Helmet Buyer's Guide

Bike Shoe Buyer's Guide

Shoe Categories

Road

Mountain Bike

Triathlon

Commuting

Touring

Running/Multisport

Urban Bike

Popular Shoe Brands

Shimano

Specialized

Sidi

Bont

Giro

Northwave

Shoe Accessories

Cleats

Cleat Covers

Shoe Covers

Inner Soles

Helmet Categories

Road

Mountain Bike

Time Trial & Triathlon

Kids

Full Face

BMX

Helmet Spare Parts

Popular Helmet Brands

Giro

Giant

Fox

Kask

POC

Lazer

Met

Azur

Troy Lee Designs

Cortex

Accessories

Shop All Accessories

Shop All Accessories on Sale


Road Bike Accessories
Buyer's Guide

Mountain Bike Accessories
Buyer's Guide

Most Popular

Lights

Computers

Bags

Trainers

Pumps

Sunglasses

Essentials

Bottles & Cages

Body Creams & Oils

Bike Locks

Mudguards

Bells & Horns

Nutrition

Racks, Tools & Cleaning

Chain Lubricants

Cleaning Tools & Agents

Tools

Pannier Bike Racks

Car Bike Racks

Storage & Display Stands

Featured

Handlebar Mirrors

Baskets

Bike Trailers

Child Seats

Scooter Parts

Popular Brands

Wahoo

BBB

Scicon

Park Tool

Topeak

Lezyne

Ortlieb

Giant

Muc-Off

Azur

Components

Shop All Components

Shop Components on Sale


Road Bike Groupset Guide

Mountain Bike Groupset Guide

Most Popular

Pedals

Groupsets

Seats & Saddles

Brakes & Parts

Power Meters

Drive Train

Cassettes

Chains

Derailleurs

Cranksets

Bottom Brackets

Handlebars

Gear Shifters & Cables

Grips

Bar Tape

Stems

Headsets & Spacers

Popular Brands

Shimano

BBB

Campagnolo

SRAM

Selle San Marco

Hope

Azur

Giant

Bontrager

Pro

Wheels & Tyres

Shop All Wheels & Parts

Shop Wheels & Parts on Sale


Road Bike Wheels Explainede

Mountain Bike Wheels Explained

Most Popular

Road

Mountain

Triathlon & Time Tria

BMX

Gravel

Wheel Parts

Spokes

Hubs

Rims

Cranksets

Skewers

Tyres

Road

Mountain

Gravel

Commuter

Cyclocross

Tubes

Tube Sealant

Extension Valves

Tubeless Conversion Kits

Patch Kits

Pumps & C02

Popular Brands

Campagnolo

Fulcrum

Hope

DT Swiss

BBB

Reynolds

Enduro

Zipp

ENVE

Bontrager

Trainers

Shop All Trainers

Shop Trainers on Sale


Introduction To Indoor Training Guide

Indoor Trainer Buyer's Guide

Trainers Categories

Smart Trainers

Magnetic Trainers

Fluid Trainers

Exercise Bikes

Popular Brands

Wahoo

Elite

Tacx

Jet Black

Minoura

Stages

Blog

GT 20 Siren 2021

Ships within Australia
In stock. Available via Click and Collect or Buy Online

Share

Loading Facebook Like button...

GT 20 Siren 2021

Ships within Australia
In stock. Available via Click and Collect or Buy Online

Share

Loading Facebook Like button...
Powered by

© BikeExchange Australia Pty Ltd 2023