A hooked rim is a special type of bicycle rim that has a hook shape to hold the tire securely on the rim. Hooked rims are particularly common on road bikes and older bikes.
The hook shape of the rim creates a depression in the rim where the bead of the tire is clamped. This prevents the tire from coming off the rim, especially at high speeds and tight corners.
Hook rims are typically made from aluminum or steel and can come in a variety of sizes and widths. The rims can also have different heights to provide better aerodynamics or strength.
A special type of hook rims are the so-called "bevel hook rims" which became popular in the 1950s. These rims have a special bevel hook shape which provides greater lateral stiffness and improves braking in wet conditions.
While hooked rims were widely used in the past, they are less commonly used today due to safety concerns . If the rim is damaged or deteriorated, the tire can slip off the rim and cause a serious accident. Modern rims typically have a "hookless" design, where the tire is attached to the rim by other methods such as a tubeless system or a clamp.
Immer mehr Menschen steigen vom Auto aufs Fahrrad um – und das nicht nur in der Freizeit. Das sogenannte Dienstrad hat sich in den letzten Jahren als attraktive Alternative zum klassischen Firmenwagen etabliert. Insbesondere E-Bikes stehen bei Arbeitnehmern und Arbeitgebern hoch im Kurs. Warum? Sie sind nicht nur nachhaltig, sondern oft auch kostengünstiger und gesünder.
In recent years, a surprising trend has taken over the streets and beaches of the Netherlands: the fat bike. The wide-tired bikes, originally designed for sandy deserts or snowy landscapes, are now a common sight in one of the most bike-friendly countries in the world. But what is behind this boom, and why is the fat bike such a good fit for Holland?
