Bicycle forks

What is the bicycle fork for

The fork connects the front wheel to the frame and allows steering. On suspension forks, it also performs another function: it absorbs bumps and irregularities in the terrain, keeps the wheel in contact with the ground, and reduces fatigue in the arms and wrists. It is therefore a component that impacts safety, comfort, and handling precision.

Rigid or suspension fork: the differences

Rigid fork

It is a single element, without suspension, made of carbon, aluminum, or steel. It is lightweight, requires no maintenance, and provides a direct response. It is the typical choice for road bikes, gravel bikes, and city bikes.

Suspension fork

It contains a suspension system consisting of a spring and a hydraulic damper. The spring can be air-sprung, which is lighter and adjustable via pressure, or coil-sprung in steel, which is heavier and offers a very linear response. The damper controls the speed at which the fork compresses and the speed at which it returns to position (rebound). It requires periodic maintenance, with intervals specified by the manufacturer.

Forks for gravel

On a gravel bike, the most common fork is a rigid one made of carbon or aluminum, chosen for its lightness and precision. For long or rough unpaved sections, one may opt for a short-travel suspension fork, typically with 30 to 50 mm of travel (the suspension travel), which increases comfort and control. In either case, check the available space for wide tires and compatibility with the frame.

How to choose the right fork

Start with the type of bike and its intended use, then check these details in the product specifications:

• Bike type and terrain: road and city bikes favor rigid forks; gravel bikes can use either rigid or short-travel suspension forks; trekking and MTB generally require a suspension fork.
• Travel: for MTBs, typically 100-120 mm for cross country, 130-150 mm for trail and all mountain, and 160-180 mm for enduro. Do not exceed the maximum value indicated by the frame manufacturer.
• Wheel diameter: 29" or 27.5" for MTBs; for road and gravel, check the rim size and maximum tire width.
• Axle and brakes: wheel axle standard (e.g., thru-axle) and type of disc brake mount.
• Steerer tube: straight or tapered, with a length suitable for the frame.
• Rider weight: determines air pressure or spring stiffness in suspension forks.

To complete the bike, you can also consult wheels and brakes, or return to the general page for components and spare parts.

Frequently asked questions

What fork is needed for a road bike?

A rigid fork, made of carbon or aluminum, chosen for lightness and precision. Check that it is compatible with the brake type (disc or rim), the steerer tube, and the tire width.

How much travel do gravel suspension forks have?

They have reduced travel, typically between 30 and 50 mm. They are designed to increase comfort and control on unpaved surfaces without weighing down the bike too much. Always verify the exact value for the specific model in the product specifications.

Which fork for a trekking bike and a mountain bike?

On a trekking bike, a short-travel suspension fork is used for comfort on uneven surfaces. On an MTB, the travel depends on the use: typically 100-120 mm for cross country, 130-150 mm for trail and all mountain, and 160-180 mm for enduro.