Crank

Buying advice for: Bicycle drive: Crank

• Crank types

  Bike cranks are available in different types, each offering specific advantages for different bikes and riding styles. Single cranks are usually found on mountain bikes and single speed bikes as they are known for their simplicity and reliability. Double cranks are typically found on road bikes and offer a good balance between speed and climbing ability. Triple cranks are often used on touring and trekking bikes and offer a wide gear range for different terrains. Compact cranks are designed for road bikes and offer smaller chainrings that make climbing easier.

• Crank brands

  Shimano is one of the leading brands and offers a wide range of cranks that are known for their reliability and precision. SRAM is another major manufacturer that uses innovative designs and durable materials. Campagnolo, known for its high-quality components in the road bike sector, also offers excellent cranks that are specially adapted to their groupsets. FSA (Full Speed Ahead) and Race Face are also popular brands that are appreciated for their robust and high-performance cranks.

• Materials and workmanship

  The choice of material influences the durability and performance of a crank. Aluminium is the most commonly used material as it is lightweight yet robust. High-quality cranks are often made of forged or CNC-machined aluminium, which ensures high precision and a longer service life. Carbon cranks offer even less weight and better shock absorption, but are often more expensive. Steel cranks are heavier but offer excellent durability and are often found on more affordable or touring bikes. Titanium cranks are extremely light and corrosion resistant, but more expensive.

• Technical features

  Modern bicycle cranks have a variety of technical features that improve their performance and ease of maintenance. The length of the crank arms varies and influences power transmission and riding comfort: shorter cranks are better suited to shorter riders, while longer cranks offer more leverage. Hollow crank arms and integrated axles reduce weight and increase stiffness. Compatibility with different chainrings and bottom brackets is another important feature to consider when choosing a crank.