Durable and lightweight aluminum minimizes extra weight on your bike. Finely sculpted levers provide easy handling and maximum leverage. Jam-free mechanism. Meticulously designed to provide the safest ride. Properly installed, they will not open by themselves. Levers are shaped to avoid being snagged and opened by roots, plants and other trail debris. Rust and corrosion-resistant springs. Heavy-duty rust-free axle. Weight: 114 grams.