The Shimano BR-M9220 XTR Trail Brake Upgrade Kit is engineered for mountain biking enthusiasts seeking superior control and performance on challenging trails. With its advanced ergonomics, the BL-M9220 brake lever offers a powerful pull and consistent modulation, ensuring ultimate control. The kit features low viscosity mineral oil for a reliable power curve across various temperatures and terrains, while the customizable calliper options allow for a tailored setup. The rattle-free design eliminates noise, providing a quiet and focused ride. This upgrade kit is perfect for riders who demand precision and reliability in their braking system.