Wheels Manufacturing Derailleur Hanger / Dropout 399 for Cannondale

All Wheels Manufacturing replacement derailleur hangers are produced in our Colorado shop to exacting tolerances.

- CNC machined 6061 aluminum
- Black anodized finish
- Attaches to frame with (1) M3 x 10 Socket Head Screw
- Fastener Included
- For 12 x 1.0 Thru Axle (Double Lead)
- Replaces Cannondale Part #K33009

NOTE: DROPOUT-399 is for M12x1 double lead threaded axles (Cannondale Speed Release). For regular M12 x 1.0 thru axles, use DROPOUT-303.

Manufacturer's Stated Fitments:
- SystemSix Carbon (with Speed Release Axle) - 2019
- SystemSix HM (with Speed Release Axle) - 2019