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  • €4.00 - €438.00



Handlebar stem interface diameter

Fork tube diameter



  • €4.00 - €438.00

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The power of control: our stems, your ride.

The bicycle stem is a crucial component that connects the handlebars to the bicycle fork steerer. Here are its main characteristics and standards:

1. Function:

The bicycle stem plays a vital role in positioning the handlebars in relation to the bicycle frame and the rider. It allows you to adjust the height and distance of the handlebars to provide a comfortable and ergonomic driving position.

2. Materials:

Bicycle stems are usually made of aluminum, steel, titanium or carbon fiber. Each material has advantages in terms of weight, rigidity and resistance to mechanical stress.

3. Length:

Stem length may vary depending on bike type and rider preference. It is measured from the center of the fork steerer to the center of the part where the handlebars are attached. Standard lengths generally range from 60mm to 140mm, with options in between.

4. Angle:

Most stems are available with different angles, usually between -10 degrees and +10 degrees in 5 degree increments. The angle of the stem influences the position of the handlebars relative to the vertical axis, which can affect the rider's riding position.

5. Swivel diameter:

The stem must be compatible with the diameter of the bicycle fork pivot. The most common diameters are 1 inch (25.4 mm), 1 1/8 inch (28.6 mm), and 1 1/4 inch (31.8 mm), although other sizes are also used on some bicycle models.

6. Handlebar diameter:

The part of the stem where the handlebars attach is designed to accommodate a specific diameter of handlebars, typically 25.4mm, 31.8mm or 35mm. It is important to choose a stem whose diameter matches that of the handlebars.

7. Fixing:

The stem is attached to the fork steerer using bolts. Some models feature a screw tightening system, while others use a quick-release system for easy installation and adjustments.


There are different styles of stems, including straight stems, forward-leaning stems (downhill stems), angle-adjustable stems, and more. The choice of style depends on riding preferences and the cycling discipline practiced.

In summary, the bicycle stem is an essential component that allows you to adjust the position of the handlebars in relation to the bicycle frame and the rider. Available in a variety of materials, lengths, angles and styles, it offers riders the ability to customize their riding position for optimal comfort and performance.