CRASH PLATE 'Crash 21' ', Classics Custom Dark Series. The Classics Custom Dark series chainrings are produced mechanically in Germany on a B10 alloy. Various techniques are involved in the process, both pressure and computer hammering. In addition, it has a glossy black finish that infers a spectacular image and a particular sound.

Main Features:

• 100% made in Germany
• Sound: Explosive
• B10 alloy
• Durable black finish