In short:
- There are three main families of road bike: aero (speed), endurance (comfort) and climbing (lightweight, often around 7 kg).
- An aluminium frame starts at around 800 euros, a carbon frame at around 1,800 euros, and the 12-speed Shimano 105 groupset is the mid-range benchmark.
- Tyres from 28 to 32 mm are now standard, compared with 23 mm ten years ago.
- Frame size matters more than weight: a badly sized bike causes discomfort and pain after just 2 hours in the saddle.
The three families of road bike
Choosing a road bike starts with identifying how you ride. Manufacturers now split their ranges into three distinct geometries, each one optimised for a specific use.
| Type | Main strength | Typical tyres | Best for |
|---|---|---|---|
| Aero | Speed on the flat, up to 30 watts saved at 40 km/h | 28 to 30 mm | Fast riders, racers, triathletes |
| Endurance | Comfort, upright position | 30 to 35 mm | Long rides, sportives, getting back into cycling |
| Climbing | Low weight and stiffness | 28 mm | Mountain riding |
The aero bike relies on shaped tubes and fully integrated cables. The endurance bike stretches the wheelbase and raises the front end to take pressure off the back. The climbing bike chases the best weight to stiffness ratio.
Frame, groupset and wheels: where to spend your budget
The frame defines the bike’s character. Aluminium remains a safe choice up to around 1,500 euros, while carbon brings lower weight and better vibration damping beyond that.
The groupset affects how precise the shifting feels. The 12-speed Shimano 105, available in mechanical or electronic (Di2) versions, is the best compromise for most riders.
Wheels are the most cost-effective upgrade: a 1,400 gram carbon wheelset transforms the acceleration of an entry-level bike.
Size comes before weight
A bike that is too big or too small cancels out every technological gain. Before buying, the guide to finding the right bike size chart helps you match your height, inseam and the frame geometry.
Riders planning to order remotely will find the key checks in the article on buying a bike online. Female riders can also read the dedicated guide to the women’s road bike.
Frequently asked questions
How do you choose the right road bike?
Choosing a road bike comes down to four criteria: riding style (aero for speed on flat roads, endurance for comfort over long distances, lightweight for the mountains), frame material (aluminium from around 800 euros, carbon from around 1,800 euros), the groupset and the right frame size. A correctly sized bike matters more than saving 500 grams.
What budget should you plan for a first road bike?
A reliable first road bike costs between 800 and 1,500 euros with an aluminium frame and a Shimano Sora, Tiagra or 105 groupset. Above 1,800 euros, a carbon frame and a 12-speed 105 groupset become the norm.
What is the difference between an aero bike and an endurance bike?
An aero bike uses shaped tubes and a lower position to cut drag at high speed. An endurance bike has a taller, shorter front end, 30 to 35 mm tyres and a more upright position for comfort on rides longer than 4 hours.