Shimano Deore LX T670 3 x 10 Speed Front Derailleur - Dual Pull - 34.9mmShimano Deore LX T670 3 x 10 Speed Front Derailleur Dual Pull 34. 9mm The Shimano Deore LX T670 front derailleur is perfect for trekking hybrid bikes and bikes with 3 x 10 speed drivetrains and provides precise, light action shifting. Wide link design for increased rigidity and improved shifting response Top swing (low derailleur band mount) Max tooth capacity: 44t 48t Chainstay angle: 63 66 degree Maximum capacity 22t Top to middle difference: 12t