Cannondale Single Lead Derailleur Hanger Synapse F-Si
Cannondale Single Lead Derailleur Hanger Synapse F-Si
Stage 21 Bikes
23582 Moulton Parkway
#111
Laguna Woods CA 92637
United States
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Cannondale Rear Derailleur Hanger – Single Lead
Synapse / F-Si / Topstone / Slate | OEM Replacement
The Cannondale Single Lead Rear Derailleur Hanger is a genuine factory replacement designed for select Cannondale road and mountain bikes using M12 single-lead thru-axles. This updated version replaces earlier hanger designs (such as KP419) and ensures proper axle engagement and precise derailleur alignment.
Correct threads. Clean shifting. OEM performance.
OEM Replacement for Cannondale Models
Compatible with select models including:
- 2018 Cannondale Synapse Carbon
- Cannondale F-Si
- Cannondale Topstone Alloy
- Cannondale Slate
- Other models originally using KP419 hanger
Single Lead Axle Design
- Designed for M12 single-lead thru-axles
- Ensures correct axle threading and engagement
- Maintains proper wheel alignment and drivetrain performance
Important Compatibility Note
⚠️ Single Lead Version Only
- Not interchangeable with Double Lead (Speed Release) version – K33009
- Verify your axle thread type before purchase
Updated OEM Design
- Updated version of KP419 hanger
- Improved compatibility and fit for modern Cannondale frames
- Maintains factory drivetrain alignment
Complete Kit
- Includes 1 derailleur hanger
- Includes 1 mounting screw
- Ready for installation
Specifications
- Brand: Cannondale
- Product: Rear Derailleur Hanger
- Thread Type: M12 Single Lead
- Compatibility: Synapse Carbon (2018), F-Si, Topstone Alloy, Slate
- Replaces: KP419
- Included: Hanger + mounting screw
Ideal For
✔ Cannondale road and MTB repairs
✔ Replacing bent or damaged hangers
✔ Restoring drivetrain performance
✔ Keeping a spare hanger on hand
Why Choose Cannondale Single Lead Hanger?
• Genuine OEM fit and function
• Correct threading for single-lead axles
• Updated replacement for older hanger designs
• Ensures precise shifting alignment
The Cannondale Single Lead Rear Derailleur Hanger is the correct OEM solution for maintaining drivetrain precision and axle compatibility on select Cannondale bikes.