TRP EVO PRO HD-M9040 Hydraulic Disc Brake Set – 4-Piston MTB Brakes

Powerful Braking Performance | Precision Control | Trail / Enduro / All-Mountain

Upgrade your mountain bike with the TRP EVO PRO HD-M9040 4-Piston Hydraulic Disc Brake Set, designed for riders who demand powerful stopping performance, smooth modulation, and reliable braking control.

Built for aggressive mountain biking, the EVO PRO combines a high-performance hydraulic system with a 4-piston caliper design to deliver consistent braking power on technical trails, steep descents, and challenging terrain.

Key Features

• 4-Piston Hydraulic Calipers: Powerful and controlled braking performance.

• Excellent Modulation: Smooth, predictable braking response for greater confidence.

• Ergonomic Brake Levers: Comfortable operation and precise control.

• Pad Activation Dial (PAD): Allows adjustment of brake pad engagement.

• Adjustable Lever Reach: Customize the lever position for a comfortable fit.

• Mineral Oil Hydraulic System: Designed for reliable and consistent braking.

• Trail & Enduro Ready: Ideal for mountain biking, all-mountain, and aggressive trail riding.

Product Specifications

• Brand: TRP (Tektro Racing Products)

• Series: EVO PRO

• Model: HD-M9040

• Brake Type: Hydraulic Disc Brake

• Caliper: 4-Piston

• Brake Fluid: Mineral Oil

• Required Rotor Thickness: 2.3mm

• Application: Mountain Bike / Trail / Enduro / All-Mountain

• Caliper Mounting: Post Mount

• Condition: Brand New – OEM

IMPORTANT – Brake Rotor Compatibility

This TRP EVO PRO HD-M9040 brake system MUST be used with 2.3mm-thick brake rotors.

• Designed specifically for 2.3mm-thick disc brake rotors.

• Standard 1.8mm-thick rotors are NOT recommended for this brake system.

• Please verify your existing rotor thickness before purchasing.

• If your current rotors are 1.8mm thick, you will need to upgrade to compatible 2.3mm rotors.

For proper braking performance and safety, please use the correct 2.3mm-thick rotors as specified by TRP.

Package Includes

• TRP EVO PRO Hydraulic Brake Levers

• TRP EVO PRO 4-Piston Brake Calipers

• Hydraulic Brake Hoses

Please refer to the listing photos for the exact items and accessories included. Brake rotors and adapters are not included unless specifically shown or stated.

Important OEM Product Information

These are OEM Parts, Brand New, Never Installed on a Bike, Never Used in Any Way, Just NOT in Retail Packaging.

• 100% Genuine TRP OEM Parts

• Brand New and Unused

• Never Installed or Mounted on a Bicycle

• No Original Retail Box or Retail Packaging

• Carefully Packed for Safe Shipping

Why Choose TRP EVO PRO?

Whether you're tackling technical descents, navigating rocky trails, or upgrading your mountain bike's braking system, the TRP EVO PRO HD-M9040 delivers the braking power, precision, and confidence you need.

Get reliable stopping power and take your mountain biking experience to the next level with TRP EVO PRO!