Rotors are the part of the brake where the calipers bite. Each rotor has its own characteristics, therefore it must be chosen carefully and bearing in mind the frame and brake that will be used.

Key points:

· Diameter: the most popular rotor size is 160mm, but there are variants (162.5mm, 180mm, etc.) depending on the preference of every rider.

· Material: most rotors are made of still, but some of them are made of aluminium to improve performance in wet conditions.