Product features Use: MTB Group: XT M8100 Model: FD-M8100 Cable route type: Front Pull Gear front: 2-speed Gear rear: 12-speed Top gear teeth: 36T Total capacity: 10T Compatible Chain: CN-M8100 12-speed Mounting (choose variant)：Clamp FD-M8100-M Material: Aluminum Stainless steel Steel Scope of delivery Shimano XT FD-M8100 12-speed Front Derailleur These are OEM Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.