Introducing the SRAM Pit-Stop 5.1 Brake Fluid. This is designed for use with Avid hydraulic brakes. The 5.1 Pit-Stop has a really high boiling point so you won't have to change the fluid as quickly as some other fluids. The small 4oz bottle is perfect for home use & even on the go. Keep on top of your brakes & make sure they are working correctly.