microNEW Bike Front Derailleur Mountain Bike Front Derailleur 7/8/9/10/11 Speed Road Bike Front Derailleur 7/8/9/10/11 SpeedFree ShippingProduct Description: Brand: microNEW Product name: Bicycle front derailleur Model: FD M20 Material: aluminum alloy+steel Color: Black+Silver Clamp for: 34. 9mm 31. 8mm Pulling Methods: pull up and pull down Support for: 42 34 24T or rear 7 8 9 speed Model: FD M21 Material: aluminum alloy+steel Color: Black+Silver Clamp for: 34. 9mm 31. 8mm Pulling Methods: pull up and pull down Support for: 42 34 24T or rear 10 11 speed Model: FD R52B Material: