Features:Wide link design Dyna-Sys 10-speed Deore MTB front derailleurSide swing, side pull front derailleur decrease problems with tyre clearance and reduces cable frictionDesigned specifically with modern trail bikes in mind, Shimano side swing technology front derailleurs increases tyre clearance, while cable routing resulting in the lightest shifting action yetSide pull cable routingWide pivot link design for greater torsional rigidity improves shifting response and service lifeE-type frame fit for easy and accurate installation giving perfect alignmentDyna-Sys 10-speed MTB drivetrain compatibilityReinforced steel chain guide offers high strength and rigidity for improved shifting responseFor triple 40-42 tooth chainringFor 66-69 degree chainstay angle