The Shimano Alivio BR-T4000 V brake system is a must for any MTB bike. This brake system uses a Magnetic Brake Technology and is able to come with a wide range of adjustments, making it perfect for all levels of cyclists. The brake system has an operating range of up to 30 spoke widths, making it perfect for all types of bicycles. The system is easy to use and comes with a built-in guide to make the adjustments needed. The brake system is designed to reduce hesitation and provide smoothness in your riding. The brake system is also dust- and mud-resistant, making it perfect for any ride.