Reduces front derailleur clamp size from 34.9mm to 31.8mm, enabling compatibility with a wider range of bike frames for versatile setup options.
Constructed from premium, lightweight materials to ensure durability and reliable performance without adding unnecessary weight to your bike.
Engineered for precise fit and easy installation, these shim adapters allow seamless integration of Shimano front derailleurs with different seat tube diameters for optimal shifting performance.
Ideal for bike builders and cyclists seeking customization, these shims enhance compatibility between components, improving drivetrain efficiency and reducing maintenance needs.
Compatible with Shimano front derailleurs and designed for use on seat tubes ranging from 31.8mm to 34.9mm, making them perfect for road, gravel, and mountain bike applications.
Description
Front Derailleur Seat Tube Shims Derailleur = the size of the clamp on the front derailleur you have. Frame = the size of the seat tube the derailleur plus shim will fit. Item Specifications: Weight: 4, Front Derailleur Clamp: 31.8 (1-1/4"), Front Derailleur Clamp: 34.9 (1-3/8"),
