Cannondale Factory Flat Mount Brake Adapter 180mm Rotor | KP421/180

Cannondale Factory Replacement Flat Mount Brake Adapter – 180mm Rotor

This genuine Cannondale factory brake adapter allows the use of a standard 74mm post-mount brake caliper on Cannondale flat-mount frames when running a 180mm rotor. Precision-machined for proper alignment and braking performance, this adapter restores OEM-correct fitment on a wide range of Cannondale mountain and hybrid platforms.

Ideal for replacements, brake upgrades, or servicing factory-equipped frames.

Key Features & Benefits

• Genuine Cannondale OEM replacement part

• Adapts 74mm post-mount calipers to flat-mount frames

• Designed specifically for 180mm brake rotors

• Ensures correct caliper alignment and braking performance

• Includes all required mounting hardware

• Factory-correct solution for Cannondale frames

Kit Includes

• Flat mount brake adapter (1 pc)

• Frame mounting bolts:

  • 25mm bolts – pair

• Caliper mounting bolts:

  • 34mm bolts – pair

  • 38mm bolts – pair

Specifications

• Rotor Size Compatibility: 180mm

• Caliper Interface: 74mm Post Mount

• Frame Interface: Flat Mount

• Manufacturer Part Number (MPN): KP421/180

• Application: Front or rear (depending on frame design)

Compatible Cannondale Models (Including but Not Limited To)

• Scalpel Si

• Habit

• Bad Habit

• Beast of the East

• F-Si Alloy

• Other Cannondale flat-mount equipped frames using 180mm rotors

Always verify frame brake mount standard and rotor size before ordering.

Why Choose Genuine Cannondale Brake Hardware?

• Maintains proper braking alignment and safety

• Preserves factory geometry and braking performance

• Eliminates fitment guesswork

• Ideal for OEM restorations, warranty service, and upgrades

A factory-correct Cannondale brake adapter designed for clean installation, powerful braking, and reliable performance on flat-mount frames running 180mm rotors.