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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.
How does a hook rim work?
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.
Problems with hook rims
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.
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Mini-Akku-Kompressoren: Kompakte Power für unterwegs
Wer regelmäßig mit dem Fahrrad oder E-Bike unterwegs ist, kennt das Problem: Ein platter Reifen kommt immer ungelegen. Doch während klassische Handpumpen mühsam sind und oft wenig Druck liefern, bieten elektrische Mini-Pumpen eine komfortable und effiziente Lösung. Die kleinen Akku-Kompressoren passen in jede Fahrradtasche, sind schnell einsatzbereit und machen das Nachpumpen fast zum Vergnügen.
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Walchensee Radtour – Traumhafte Ausfahrt im bayerischen Voralpenland
Die Walchensee Radtour gehört zu den schönsten Routen im bayerischen Voralpenland. Kristallklares Wasser, eindrucksvolle Bergpanoramen und idyllische Badeplätze machen die Strecke zu einem echten Erlebnis – egal ob mit E-Bike, Gravelbike oder Mountainbike. Von Geretsried aus erreicht man den Startpunkt schnell und kann direkt in die Natur eintauchen.
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Belt drive vs. chain drive on an e-bike: Which is better?
Anyone who buys an e-bike or is considering an upgrade will sooner or later face the question: Belt drive or chain drive? Both drive types have their advantages – but also their peculiarities. In this article, you'll learn how chain and belt drive differ, which technology suits which type of rider, and what to consider when choosing.
