In SRAM terminology, Low Direct means that this X0 2x10 Low Direct Mount Front Derailleur is an E Type without the E plate. It will bolt to a direct mount on your frame or swingarm. The easiest way to recognize this from a high direct style SRAM derailleur is that this one uses a top swing parallelogram design. The X0 2x10 Low Direct Mount Front Derailleur is specifically designed to work in conjunction with SRAM's 2x10 cranksets. As such, it's made to handle up to a 15 tooth differential between the big and little rings. Its cage is shorter and narrower than a triple specific changer. This is great news for those who fear clearance between their rear suspension and their front derailleur. The aluminum links that shape the swing of the derailleur cage have widely spaced pivots for awesome stiffness. This rigidity inherent in the parallelogram is part of what makes X0 front shifting so quick and efficient. The derailleur cage is made from steel for maximum durability and is shaped for optimum performance with their X Glide chainrings. The SRAM X0 2x10 Low Direct Mount Front Derailleur is available as either top or bottom pull and bolts straight into a E type low direct mount on your frame.