I've had my bike (GT Avalanche 1) for maybe four or five years now. I've changed the pads once, removed and cleaned all parts on the bike a few times now, but I've never touched the brake fluid. Does this need to be changed, and if so, why and how?
I couldn't honestly say whether performance has deteriorated over time - they still stop the bike and I don't notice any fade - I'm just curious.
Brakes are Tektro Auriga Comp.