KCNC Front Derailleur Clamp
| Article number: | 023-01-03 |
| Availability: | In stock |
KCNC Front Derailleur Clamp adapts a braze-on style front derailleur to a standard round seat tube. It is a lightweight solution for frames that do not have an integrated front derailleur braze-on tab, allowing riders to use a braze-on front derailleur with common 28.6 mm, 31.8 mm, and 34.9 mm seat tube diameters.
The clamp integrates the seat tube clamp bolt and derailleur mounting bolt into a simple, low-profile design. At approximately 15 g, it is a lighter alternative to many standard front derailleur adapter clamps.
Compatibility Note: This clamp is for braze-on style front derailleurs used on round seat tubes. Match the clamp size to your frame’s seat tube diameter and choose the correct offset for your derailleur position and chainring setup.
KCNC Front Derailleur Clamp Details
Offset Notes
The standard version uses a 3° offset, while the 0° version may work better in specific frame, derailleur, or chainring clearance situations. Choose the offset that positions the derailleur cage correctly over the chainrings.
Installation Notes
Install the clamp at the correct height and angle for the front derailleur. The derailleur mounting bolt secures both the derailleur and clamp assembly, so final placement should be checked before tightening. After installation, confirm derailleur cage height, cage angle, cable routing, and chain clearance through the full shift range.
For drivetrain setup service, pair this clamp with fresh shift cable and housing when replacing or reinstalling a front derailleur. The Alligator Slick 31-Strand Cable and Alligator Superlight Shift Housing Cable Kit are useful companion parts for front shifting refreshes.