The M18 front rack features hand-brazed cro-mo construction and flawless finish that exemplifies fine Japanese craftsmanship and will carry light loads or handlebar bags with ease, and the included P-clamps will fit any traditional steel fork.

Can you use it on a carbon fork? No. Can you use it on an undrilled fork? Also no. 

The M18 rack is designed to be mounted behind a brake caliper using the existing brake hardware. If you're not using a front brake, you will need to use your own M6 bolt & recessed brake nut. If your fork isn't drilled for a brake, you can't use this rack.