B1 SUSPENSION

Specifications:

• Model: D4K-12 inch (modified version)
• Height: 445 mm
• Middle Head Tube Height: 180 mm
• Riser Dimensions: 28.6 mm (diameter) × 260 mm (length) × 0 mm (clearance)
• Front Fork Opening: 135 mm

Design Modifications:

• No Upper and Lower Levers: The design has been simplified by removing the upper and lower levers for reduced weight and streamlined assembly.

Material and Finish:

• Outer Tube: Anodized gold finish, providing a premium look and improved corrosion resistance.
• Inner Tube Coating: QPQ (Quench-Polish-Quench) black finish for superior wear resistance and durability.

Additional Features:

• Lower Connecting Plate: Includes an M6 threaded hole to support mudguard installation.
• Mud Plate Compatibility: Designed to allow easy mudguard mounting as needed.

This configuration enhances the aesthetic appeal with the anodized gold finish and simplifies the structure while retaining key functionality. Let me know if you need further refinements or additional details.