Shimano Deore XT FD-M8100-E Front Derailleur 2x12-Speed E-Type Side Swing

Product Description
The Shimano Deore XT FD-M8100-E is a high-performance 2x12-speed mountain bike front derailleur designed for frames using Shimano’s E-Type direct-mount interface.

Shimano’s Side Swing design follows the direction of chain movement for light, efficient shifting while providing increased tire and frame clearance. The FD-M8100-E supports both standard and Boost drivetrain configurations with 48.8mm and 51.8mm chainlines, making it a versatile factory replacement for compatible XT 12-speed mountain bike setups.

Key Features

• Deore XT M8100-series front derailleur
• 2x12-speed drivetrain design
• E-Type frame mounting
• Side Swing mechanism for smooth, light shifting
• Front-pull cable routing
• Compatible with standard and Boost chainlines
• Increased tire clearance for modern MTB frames
• Designed for Shimano HG 12-speed chains
• Compatible with chainrings up to 38T

Specifications

• Brand: Shimano
• Series: Deore XT M8100
• Model: FD-M8100-E
• MPN: IFDM8100E6
• Product Type: Front Derailleur
• Front Speeds: 2
• Rear Speeds: 12
• Mount Type: E-Type, Without Bottom Bracket Plate
• Derailleur Action: Side Swing
• Cable Routing: Front Pull
• Compatible Chain: Shimano HG 12-Speed
• Chainline: 48.8mm / 51.8mm
• Rear Spacing Reference:
  • 48.8mm Chainline: 142mm O.L.D.
  • 51.8mm Chainline: 148mm Boost O.L.D.
• Maximum Chainring: 36-38T
• Total Capacity: 10T
• Chainstay Angle: 66-69°
• Base Bracket Material: Aluminum
• Outer / Inner Links: Aluminum
• Chain Guide Material: Steel
• Claimed Weight: 106g
• Color: Shimano XT Series Color

Compatibility
Designed for compatible mountain bikes using:

• Shimano 2x12-speed MTB drivetrain
• E-Type front derailleur mounting interface
• Front-pull cable routing
• 48.8mm or 51.8mm chainline
• 36-38T large chainring
• Maximum 10T difference between front chainrings

Shimano designed this derailleur to provide additional clearance for modern long-travel frames and tires up to approximately 2.3 inches on wider rims, subject to the specific frame and wheel configuration.

This is the FD-M8100-E E-Type version. It should not be confused with the FD-M8100-D direct-mount or FD-M8100-M clamp-mount versions.

Included

• Shimano Deore XT FD-M8100-E front derailleur

Condition

• New
• Non-retail packaged