Sigma Brake Light
This brake light from Sigma is an innovative safety light for cyclists. The brake light is compatible with all cable actuated mechanical brakes. The brake light attaches to the rear brake cable using a 2.5mm hex wrench. Install the light with a little pre-tension, so the brake light illuminates with the slightest tap of the brake lever.

Features

• Attaches to all rear brake cables – requires 25mm exposed cable to fit
• Tighten up the bolt on the brake cable
• Emits an Ultra Brightred LED light each time the brake lever is pressed
• Runs on a replacableCR1025 battery
• The light measures 3cm x 3cm
• Aerodynamic design
• Water resistant housing
• Very durable
• Weight 6g
• Light will last approximately 100,000 braking actions before the battery needs to be replaced