CHASER Sports Ultra-Light Direct Mount Derailleur Hanger Upgrade Kit for Wilier Road Bikes

Designed specifically for Wilier high-performance road bikes, this ultra-light direct mount derailleur hanger upgrade kit is engineered for riders seeking maximum drivetrain precision, lightweight performance, and premium CNC-machined aesthetics.

Manufactured by CHASER Sports using high-strength ALU7075-T651 aluminum alloy and full CNC machining technology, this derailleur hanger significantly reduces weight while maintaining excellent rigidity and shifting stability.

Compatible only with Shimano R-Series direct mount rear derailleurs.

Not compatible with SRAM or Campagnolo rear derailleurs.

Compared to the OEM hanger weight of approximately 34.4g, this upgraded version weighs only around 14.5g including the side cover.

Features

• Ultra-lightweight design
• Precision full CNC machining
• High-strength ALU7075-T651 aluminum alloy
• Premium anodized finish
• Improved stiffness and reduced weight
• Includes side cover nut
• Designed for Shimano R-Series drivetrains
• Wilier-specific compatibility

Specifications

Models

• WILR D1TH
• UDHR D1TH

Material

ALU7075-T651 Aluminum Alloy

Manufacturing Process

Full CNC Machining

Weight

Approx. 14.5g (including side cover)

Recommended Torque

2Nm

Compatible Bike Models

WILR D1TH

Compatible with:

• 2021 Wilier ZERO / FILANTE
• 2022 Wilier ZERO / FILANTE
• 2023 Wilier ZERO / FILANTE
• 2024 Wilier ZERO / FILANTE
• 2025 Wilier FILANTE SL

UDHR D1TH

Compatible with:

• 2025 Wilier FILANTE SLR / VERTICALE
• 2026 Wilier FILANTE SLR / VERTICALE / GranTurismo

Compatible Rear Derailleurs

Compatible only with Shimano R-Series direct mount rear derailleurs.

Rear derailleur feature required:

• Extended direct mount hanger structure

Not Compatible With

• Older Shimano rear derailleurs
• SRAM rear derailleurs
• Campagnolo rear derailleurs
• Other non-compatible derailleur systems

Installation Instructions

The package includes optional 0.1mm adjustment shims.

The shims are not always required and should only be installed if needed to eliminate axial movement between the derailleur and hanger.

Installation Position

Install the shim between:

• The derailleur hanger
• The rear derailleur

After installation, please readjust and fine-tune the shifting system according to Shimano specifications.

Package Includes

• Wilier Direct Mount Derailleur Hanger ×1
• Side Cover Nut ×1
• 0.1mm Adjustment Shims × Several

Important Notes

• Please verify bike model compatibility before ordering
• Professional installation is recommended
• Rear derailleur indexing must be readjusted after installation
• Follow Shimano torque specifications during installation

Compatibility Check: Due to the complexity of original equipment manufacturer (OEM) parts' models and batches, there may be instances where this product is incompatible.

Upon receiving this product, please compare it with the OEM specifications to ensure compatibility before installation.

Torque Specifications: Install this product strictly according to the torque values specified in the OEM parts manual.Installation Issues: If you encounter any discrepancies with the OEM specifications or face difficulties at the initial stage of installation, stop immediately and contact customer service for assistance with returns or exchanges.

No Forced Installation: Do not force installation under any circumstances.Liability: Any damages resulting from forced installation or unauthorized modifications of this product (or its components) will be the sole responsibility of the buyer.

All products are photographed to accurately represent the colors you will see upon receipt.

Due to differences in lighting, angles, or screen settings, slight color variations may occur.

The actual product should be considered the standard.For "colored" and "blue" products, the coloring process may result in uneven color distribution, making each product unique.