Wheel Manufacturing Hanger 303 Cannondale
What Is It?
The Wheel Manufacturing Hanger 303 is a precision CNC-machined replacement derailleur hanger designed for selected Cannondale road, gravel, and cyclocross bicycles. It provides a secure mounting point for the rear derailleur while acting as a sacrificial component that protects the bicycle frame by bending or breaking during an impact.
Manufactured in Colorado from 6061 aluminium, the Hanger 303 is finished with a durable black anodised coating and is designed as a direct replacement for Cannondale part numbers KP419 and K33049.
Key Features
- Precision CNC-machined from 6061 aluminium
- Black anodised finish for durability and corrosion resistance
- Direct replacement for Cannondale KP419 and K33049
- Designed for 12 × 1.0 mm single-lead thru-axles
- Includes M3 × 10 mm socket head mounting screw
- Restores accurate derailleur alignment for precise shifting
- Lightweight yet strong construction
- Manufactured in the USA by Wheels Manufacturing
- Easy installation using standard workshop tools
Specifications
| Specification |
Details |
| Brand |
Wheels Manufacturing |
| Model |
Derailleur Hanger 303 (DROPOUT-303) |
| Material |
CNC-machined 6061 Aluminium |
| Finish |
Black Anodised |
| Mounting Hardware |
1 × M3 × 10 mm Socket Head Screw (included) |
| Thru-Axle Compatibility |
12 × 1.0 mm Single-Lead Thread |
| Replaces Cannondale Part Numbers |
KP419, K33049 |
| Compatibility |
Selected Cannondale road, gravel, cyclocross and e-bike models |
| Made In |
USA |
Important: This hanger is designed for 12 × 1.0 mm single-lead thru-axles and is not compatible with the Speed Release double-lead axle used on 2019+ Cannondale SystemSix models.
Compatible Cannondale Models
The Hanger 303 is compatible with selected Cannondale models, including:
- Beast of the East (2016–2017, DT M12×1 thru-axle)
- SuperX (2017–2018, DT M12×1 thru-axle)
- Synapse Carbon Disc (2018–2019)
- Synapse Hi-MOD Disc (2018–2019)
- Synapse Neo Alloy (2019)
- Topstone (2019)
Compatibility depends on the exact frame model and year, so always verify your bike before purchasing.
Who Is It Suitable For?
- Cannondale road bike owners
- Gravel riders
- Cyclocross riders
- E-bike riders with compatible Cannondale models
- Home mechanics
- Professional bicycle workshops
- Riders carrying a spare derailleur hanger
Who Should Use It?
- Riders replacing a bent or broken derailleur hanger after a crash
- Cyclists experiencing poor shifting caused by a misaligned hanger
- Home mechanics performing drivetrain repairs and maintenance
- Bicycle workshops servicing compatible Cannondale bicycles
- Riders who carry a spare hanger for races, bikepacking trips, or long-distance rides
- Anyone with a compatible Cannondale bicycle looking for a high-quality CNC-machined replacement hanger that restores precise shifting while helping protect the frame from derailleur impacts.
