Mountain bikers and e-bike owners, listen up! These replacement brake pads are exactly what you need to keep your rides safe and smooth. Specifically designed for Avid BB5 and similar mechanical disc brakes like the M446, these resin semi-metal pads offer the perfect balance of stopping power and durability. The hybrid material composition provides excellent heat dissipation and wear resistance, meaning they last longer and perform consistently whether conditions are wet or dry. What we love: they're virtually silent during use - no annoying squealing or grinding noises! The break-in time is short, and they deliver strong, reliable braking from the first squeeze. Each package contains 4 complete pairs (that's 8 individual pads total), so you've got plenty of replacements for both wheels plus extras for future maintenance. Installation is straightforward - if the shape and size match your current pads, these will drop right in. Perfect for downhill riding, trail adventures, or daily commuting where reliable brakes are non-negotiable. Keep several sets on hand so you're never caught with worn-out brakes before a big ride!