Cannondale F-Si Seat Binder Wedge Kit 27.2mm OEM

Cannondale Factory Replacement Seat Binder Wedge Kit – F-Si

This Cannondale factory replacement seat binder wedge kit is designed specifically for Cannondale F-Si frames using a 27.2mm seatpost. Built to OEM specifications, it restores proper internal seatpost clamping force while maintaining the clean, lightweight design of the F-Si carbon hardtail platform.

A direct replacement for worn, damaged, or missing seat binder hardware, this kit ensures secure seatpost retention and correct torque performance.

Compatibility

✔ Cannondale F-Si Frames

• Designed for 27.2mm seatposts

• Carbon F-Si hardtail platforms

❌ Not compatible with other Cannondale models
❌ Not compatible with 25.4mm or 30.9mm seatposts

Features & Details

• Genuine Cannondale factory replacement part

• Internal wedge-style seat binder system

• Maintains clean, minimalist frame aesthetics

• Ensures correct clamping force without frame damage

• Ideal for service, replacement, or frame rebuilds

Part Information

• Cannondale Part Number: K26058

• Application: Internal seat binder wedge

• Seatpost size: 27.2mm

Recommended Use

• Replacing damaged or missing seat binder hardware

• Resolving seatpost slip or creaking

• Restoring OEM-correct seatpost retention

Why Choose OEM Cannondale Parts?

Using genuine Cannondale hardware ensures:

• Proper torque and secure clamping

• Correct frame interface and alignment

• Long-term reliability

• Preservation of frame integrity and resale value