Avid is a sunsidiary of SRAM and was started in 1991 with the concept 'Small Details. Big Difference'. Avid works hard to bring the most dramatic improvements and make products so good you find it hard to ride without it. The Avid Dot 5.1 Fluid ensures your brakes perform at their optimum. The Avid Dot 5.1 Fluid is compatible with all Avid Disc brake seals.