Sumart 254mm Post Mount Adapter

Sumart 254mm Post Mount Adapter — Front Brake Rotor Adapter

Bigger rotor. More control. Maximum braking power.

The Sumart 254mm Post Mount Adapter allows you to upgrade your front brake setup to use the Sumart 254mm rotor, unlocking increased stopping torque and improved heat management for heavy trail, enduro, or e-MTB riding. Precision-machined from high-strength alloy, this adapter ensures perfect alignment, solid mounting, and reliable braking under the most demanding conditions.

🔧 Compatibility

Designed for:

• Front brake applications using 254mm rotors

• Standard Post Mount forks and calipers

• Compatible with most 2-piston and 4-piston calipers (Shimano, SRAM, Hope, Lewis, etc.) that use post-mount spacing

Note: This adapter increases caliper spacing to correctly fit a 254mm front rotor.

⚙️ Key Features

• Precision Machined: Ensures perfect alignment and maximum stiffness.

• Lightweight Aluminum Construction: Strong yet minimal weight for performance builds.

• Anodized Finish: Durable corrosion resistance with a clean, professional look.

• Easy Installation: Includes mounting bolts; installs in minutes with standard tools.

• Exact Fit: Designed specifically for Sumart’s 254mm front brake rotor.

🚵  Ideal For

Riders upgrading to larger rotors for improved heat dissipation and stronger, more consistent braking — perfect for enduro, e-MTB, and downhill setups.

Brand: Sumart

Type: Post Mount Adapter

Rotor Size Supported: 254mm (Front)

Material: CNC Aluminum

Includes: Adapter + Mounting Bolts