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  1. #1
    mtbr member
    Reputation: henry9419's Avatar
    Join Date
    Nov 2010

    brakes/braking terminology

    im just starting learning more about brakes and looking for a new set of discs but im getting confused by some of the different terminology so i was hoping we could put together a list of some sort with related terms and how they affect my/your decision in buying brakes
    2009 Jamis Trail X2
    2002 Raleigh Mountain Scout
    2008 Trek fuel ex7

  2. #2
    mtbr member
    Join Date
    Aug 2011
    A start.. in simple terms

    Hydraulic Brakes: brake lever pushes fluid down the hose to the caliper causing the pistons to clamp the metal/organic brake pads down on the spinning rotor
    Cable Brakes: brake lever pulls the wire upward causing the rubber pads to camp down on the rim
    Rotor: Metal disc mounted in the center of the wheel which is gripped by the brake pads to slow the rotation of wheel
    Caliper: brake mechanism which, through moving pistons, clamps down on the rotor to slow the rotation of the wheel
    Brake Pad: Flattened material which, when pressed against the rotor, slows the rotation of the wheel.
    Bleeding: the process in which air is removed from the caliper and hose and replaced with more fluid
    Reach: the distance one must outstretch their fingers to be able to grip the lever
    Play: the distance you can pull the lever before the pistons begin to engage

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