Gorilla Brakes · Replacement disc brake pads

Brake Pads For HAYES Dominion A4 / T4 Disc Brake Calipers

Gorilla Brakes disc brake pads are direct-fit replacements for Hayes Dominion 4-piston calipers, providing precise compatibility with Dominion A4 and Dominion T4 brake systems.

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Check fitment and compatible models

Gorilla Brakes disc brake pads are direct-fit replacements for Hayes Dominion 4-piston calipers, providing precise compatibility with Dominion A4 and Dominion T4 brake systems.

These calipers are used for trail, enduro, downhill, bike park, and eMTB riding where high braking forces, control under load, and consistency on long descents are required.

Upgrade your HAYES 4-piston braking system with Gorilla Brakes high-performance pads — engineered for powerful stopping power across downhill, enduro, and trail conditions.

✅ Compatibility Chart

  • HAYES Model: HAYES Dominion; Caliper: A4; Discipline: Downhill, Enduro, Trail
  • HAYES Model: HAYES; Caliper: T4; Discipline: Trail, All-Mountain
  • HAYES Model: HAYES; Caliper: A4-SRL; Discipline: Enduro, Trail

Choose your performance range

Find your brake pads

Enduro Pro

Our highest-performance range.

Factory Racing

Performance-focused options.

Standard Compounds

Everyday riding options.

Choose your compound

Enduro Pro Ultimate Orange focuses on braking performance and pad life for demanding descents and heavier loads. Enduro Pro Semi Metallic Blue combines versatile braking with heat management for trail riding, touring and long descents.

All Enduro Pro and Factory Racing compounds are e-bike rated. For heavy cargo, loaded touring and demanding descents, we recommend Enduro Pro Ultimate Orange or Enduro Pro Semi Metallic Blue in the correct fitment.

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Advice when you need it

Choose. Fit. Bed in.

Fitting guide Bedding-in guide Find your brake pads Ask us about your brakes

Before you order

Brake Pads For HAYES Dominion A4 / T4 Disc Brake Calipers FAQs

A little help with fitment, compounds and getting ready to ride.

How do I select the correct pad for HAYES Dominion A4 / T4 Disc?

Separate Dominion A2/T2, Dominion A4/T4 and the individual legacy Hayes fitments. Use the complete caliper name and compare the old pad outline. Check the selected product’s exact compatibility before ordering.

Which of the available compounds should I compare?

Enduro Pro Ultimate Orange focuses on braking performance and pad life for demanding descents and heavier loads. Enduro Pro Semi Metallic Blue combines versatile braking with heat management for trail riding, touring and long descents.

Which compounds are e-bike rated, and which do you recommend for heavy loads?

All Enduro Pro and Factory Racing compounds are e-bike rated. For heavy cargo, loaded touring and demanding descents, we recommend Enduro Pro Ultimate Orange or Enduro Pro Semi Metallic Blue in the correct fitment.

How should I prepare the rotor and bed in new pads?

Check the rotor’s condition, wear limit and permitted pad material. Follow the installation instructions for your caliper and our bedding-in guide, including rotor preparation when changing compounds.