stuurklem

A stuurklem, often translated as a handlebar clamp or stem clamp, is a component used in cycling and other forms of steering-based machinery. Its primary function is to securely fasten the handlebars to the steering column, also known as the steerer tube. This connection is critical for transferring steering inputs from the rider to the front wheel.

Stuurklemmen come in various designs and materials. The most common type found on modern bicycles is the threadless stem clamp, which utilizes bolts to grip the steerer tube. These are typically made from aluminum alloy or carbon fiber for a balance of strength and weight. Older bicycle designs may feature quill stems, which insert into the steerer tube and are tightened by a single bolt.

The diameter of the handlebar clamp is a crucial specification, as it must match the diameter of the handlebars to ensure a secure and reliable fit. Similarly, the steerer tube clamp diameter needs to be compatible with the bicycle's fork. Stuurklemmen also vary in reach and angle, which affect the rider's position and comfort. A proper stuurklem installation is essential for safe operation, preventing slippage and ensuring effective control of the vehicle.