Wolf Tooth Post to Flat Mount Brake Adapter

Wolf Tooth Post to Flat Mount Brake Adapter Info

Wolf Tooth Post to Flat Mount Brake Adapter allows you to mount a flat mount brake caliper to a frame or fork originally designed for post mount brakes. For riders blending road and mountain components—such as installing a road groupset on a mountain frame—this adapter provides a clean, precisely machined solution.

This adapter is a +20mm configuration, meaning rotor size must increase accordingly. A 140mm native post mount frame or fork will require a 160mm rotor. A 160mm native post mount will require a 180mm rotor, and so on. Proper rotor sizing is critical for correct brake alignment and performance.

CNC machined from 6061-T6 aluminum, the Wolf Tooth Post to Flat Mount Brake Adapter delivers lightweight durability with precise tolerances. Each adapter is sold individually and includes the necessary mounting hardware for both flat mount and post mount interfaces.

Post to Flat Mount Brake Adapter Specs at a Glance

• Mount Type: Post mount frame/fork to flat mount caliper
• Offset: +20mm (requires rotor size increase)
• Material: 6061-T6 aluminum
• Weight: 17g
• Included Hardware: (2x) M5x13mm flat head bolts (flat mount caliper)
  (2x) M6x15mm socket head bolts (post mount)
• Sold: Individually

Compatibility

• Fits post mount native sizes: 140mm, 160mm, and 180mm
• Works with rotor sizes: 160mm, 180mm, and 200mm (based on +20mm offset)
• Tested with SRAM and Shimano brake systems
• Requires minimum 13mm clearance between top of brake boss and frame/fork
• Not compatible with Fox Step Cast forks

Design Benefits

1. Cross-Platform Flexibility: Enables flat mount road brakes on post mount frames or forks.
2. Precision Machining: Ensures proper caliper alignment and rotor engagement.
3. Lightweight Construction: Minimal added weight at the brake interface.
4. Complete Hardware Included: Ready for installation out of the box.

Final Take

The Wolf Tooth Post to Flat Mount Brake Adapter is a practical solution for mixed-component builds and custom setups. With its +20mm rotor offset and precision aluminum construction, it allows riders to expand brake compatibility without sacrificing alignment or performance.