The Shimano SLX M671-A 10 Speed Dual Pull Front Derailleur gives you a clean cable routing to decrease problems with tyre clearance. There is also an increased suspension stroke thanks to the new slant shaped left linkage design. You can either buy it in Direct Mount or Multi Fit on the conventional swing derailleur. fitting Adding the Dual Pull feature giving you a front derailleur you can run as top pull or bottom pull, & is Dyna-Sys 10-speed MTB drivetrain compatibility.