Campagnolo Hydraulic Brake Fluid Non-Toxic If you're using hydraulic disc brakes on your bike, you'll eventually want to change the fluid in your brake line. You'll want to make sure you get the correct fluid for the type of brakes you have. Campagnolo Hydraulic Brake Fluid is a low-viscosity mineral oil used with Campagnolo hydraulic brake systems. It does not absorb water, so regular bleeding is not necessary. It is non-toxic and will not irritate the skin, and it will not damage frame finishes. Features Low-viscosity mineral oil for use with Campagnolo hydraulic brake systems Does not absorb water so regular bleeding is not necessary Non-toxic and will not irritate the skin | Campagnolo | Hydraulic Brake Fluid 50Ml