Felgenbremsräder

Felgenbremsräder, commonly referred to as rim brake wheels, are a type of bicycle wheel designed to be used with rim brake systems. In this configuration, the braking surface is an integral part of the wheel's rim. The brake caliper, mounted on the bicycle frame or fork, applies friction directly to the sides of the rim through brake pads. This method of braking is prevalent in road cycling, hybrid bicycles, and many older or more budget-oriented bicycle models.

The construction of a felgenbremsrad typically involves a rim made from aluminum alloy, though carbon fiber rims are also used, often with specific braking surfaces treated to enhance friction and heat dissipation. The rim's sidewall is precisely machined to provide a consistent and flat braking track. Spokes connect the rim to a central hub, which houses bearings for smooth rotation and is where the wheel attaches to the bicycle.

Advantages of felgenbremsräder include their relatively simple design, lighter weight compared to some other brake systems, and generally lower cost of components. They are also easy to maintain and understand for many cyclists. However, their performance can be significantly affected by wet weather conditions, and prolonged braking can lead to rim wear and heat buildup, potentially compromising braking power and damaging the rim. Despite the rise of disc brakes, felgenbremsräder remain a popular choice for many applications due to their established technology and accessibility.