Engineered to climb, corner and descend with efficiency and speed, a Giant road bike gives you a competitive edge. Whether you’re racing, training or going for the KOM, these men’s road bikes do it all, and do it faster. From aero road bikes that slice through the wind, through to endurance road bikes that help you ride longer, every Giant bike is designed to be fast, lightweight and efficient and help you achieve your riding goals.

Aero Road - Propel

Designed to slice through the wind and deliver ultimate speed, the Propel is our dedicated aero racing machine. Packed full of the latest technology and designed in a wind tunnel, the Propel offers aerodynamic efficiency and blazing speed thanks to its unique tube profiles, aero integration and best-in-class frame stiffness.

Featuring a full carbon frame throughout the range, and available in rim or disc brake options, the Propel is a proven winner - from Tour de France stage races, through to local Strava segments.

Performance & Race - TCR

A true performance road bike needs to be a mix of many different attributes - light, aero, comfortable and responsive, and this is what the TCR delivers in its latest iteration. It's our all-round performance model that has a whole host of famous race wins and five-star reviews to its name over three decades of innovation and development.

Offering a lightweight carbon frame, rim or disc brake options and tubeless-ready across the entire range, the TCR is a versatile performer for all levels of road riders.

Endurance Road - Defy

Also known as a ‘sportive’ bike, the Defy is a road bike specifically designed for long days in the saddle. A firm favourite amongst endurance road riders, the Defy has been a staple part of the Giant lineup since its introduction in 2008.

Featuring a lightweight carbon frame and superb climbing ability, the Defy shares similar characteristics to the TCR, just with tweaked geometry for a slightly less aggressive riding position.

Its popularity stems from its plush ride quality, smoothing out roads and letting riders spend more time in the saddle, reducing fatigue. It’s a great option to use over winter as it has clearance for wider tyres, powerful disc brakes and mounts for mudguards, making it a true all year riding companion.

All-Rounder - Contend

The Contend range starts from £625, but don't mistake this all-rounder for an entry-level bike. Taking design inspiration from both the TCR & Defy, the Contend offers a balanced and assured ride for any type of cyclist - from weekend racers, through to daily commuters, the Contend can handle anything you throw at it.

New for 2020 is the Contend AR. With more riders starting to look for paths off the beaten track, the Contend AR is the bike designed for exploring. Featuring frame clearance for up to 38mm tyres, powerful disc brakes and bump-absorbing D-fuse technology, the Contend AR still offers excellent performance on the tarmac, but with the ability to tackle rough roads and paths when the time comes.

Available with a lightweight aluminium frame, the Contend is a great starting point for riders looking to start their road riding adventures.


We offer a variety of interest-free finance options, including 36 months, on every road bike in our range, so you can spread the cost over manageable monthly payments. With no deposit needed, it’s a great way to get that dream road bike. Find out more about finance on our dedicated page.

Home Delivery / Click & Collect

If you decide to purchase your road bike from our website, there's a couple of options available. We offer free click & collect to your nearest Giant retailer, or free home delivery in certain locations. If you choose home delivery, the bike will be fully built and assembled by the Giant retailer and safety checked before it's handed over, so you can start riding as soon as it arrives.


We've put together a variety of guides around the topic of road bikes, to help you every step of the way. From explaining complex technology, through to breaking down the Giant road range, there's a guide for any burning question you may have around road cycling.

A Guide To Choosing Your First Road Bike

Aero or endurance? racing or fitness? Aluminium or carbon fibre frame? There are many factors to consider when choosing your first road bike and it can be quite a daunting experience if you’re new to the sport. Here, we’ve published a guide to offer some advice on what to look for and hopefully help make deciding a little easier.

A Guide To Tubeless Road Tyres

Many of our road bikes come with tubeless tyres as standard, due to the many benefits it brings over a classic clincher tyre with inner tube set up. The ability to run a lower tyre pressure on wider tyres, combined with the reduced chance of a puncture, means its a great option for road cyclists as they look to increase comfort during the ride. Read more about tubeless road tyres in our guide below.

A Guide To Power Meters

Carbon road bikes look great, but for real performance gains, you should consider investing in a power meter. Many bikes now come with power meters as standard, but if not, they have become much more affordable of late. A power meter can offer huge benefits when used correctly combined with the right training. We’ve put together a guide on how to get the most from your power meter.

A Guide To Endurance Road Bikes

Sometimes referred to as a 'sportive bike', the endurance road bike has increased in popularity in the UK as riders look for more comfort when tackling the poor road surfaces and adverse weather conditions. Find out more about what makes an endurance bike and why it could be a great option for your next ride, especially if you plan to ride long distances on the road.

A Guide To Road Cycling In Winter

Let’s face it – most people would always prefer cycling in the long, warm days that summer brings, but this doesn’t mean that cycling in winter has to be any less enjoyable. With the right preparation and equipment, winter cycling can be just as fun. Here’s our guide to help you get the most out of road cycling over the colder months.

A Guide To Road Bike Upgrades

Sometimes, a new bike just isn’t the answer. If you already have a nice carbon bike but fancy adding a few upgrades, then our guide to the best road bike upgrades will make sure you are spending your money in the right place to get the most performance.

A Guide To Essential Cycling Gear

The road bike is prepped and ready to ride, but what about you? Make sure you’re equipped for whatever conditions come your way with our guide to essential cycling gear.


At the heart of our bikes is our wide range of technology - as the world’s biggest manufacturer, we’ve spent the last 40 years at the forefront of bike and gear development, constantly improving to deliver the best bikes in the world. Below, you’ll find some of the common technical terms used in the specification of our road bikes.

Advanced Composite

This is our high-performance carbon fibre that we use to produce bikes that are lightweight and with a high stiffness-to-weight ratio.

Aluxx / Aluxx SL

Aluxx refers to our grade of high quality, lightweight aluminium that goes into our frames and forks. Aluxx SL is our premium grade aluminium, which is lighter and stiffer than standard Aluxx. 


D-fuse technology is featured in some of our seatpost and drop handlebars. Sporting an innovative D-shape, D-fuse is proven to absorb more shocks and bumps from the road to deliver a smoother ride quality. D-fuse is present on Defy & select Contend models. 

Aerosystem Shaping

Specifically important for our aero road bikes, this refers to frame tube shapes that are developed through CFD (Computational Fluid Dynamics) and wind-tunnel data.

Compact Geometry 

Introduced by Giant with the professional Team ONCE in the 1990s, Compact Road revolutionized the look and feel of high-performance road bikes forever. It refers to the design of the frame, with a downward sloping toptube (from the headtube to the seat tube) creating smaller front and rear triangles for a lighter, stiffer bike. 

OverDrive / OverDrive 2

Often shortened to OD & OD2, this refers to our oversized fork steerer tube. The increased size improves steering and stiffness, providing a better ride over a standard fork steerer tube. 


Our performance road bikes at pro level and above feature the ability to neatly integrate a Giant Ridesense unit into the chainstay. This unit sends wheel speed and cadence information directly to any ANT+ compatible computer, such as the Neostrack or a Garmin device, so you don’t need to purchase additional extras to start recording your riding data.