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Shimano GRX / 105 / Ultegra / Dura-Ace / Tiagra – Carbon Disc Brake Pads (L / K-Type) | Gorilla Brakes

Shimano GRX / 105 / Ultegra / Dura-Ace / Tiagra – Carbon Disc Brake Pads (L / K-Type) | Gorilla Brakes

£14.99 GBP
£14.99 GBP
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Gorilla Brakes Carbon Compound

Refined braking. Quiet operation. Built for real riding.

The Gorilla Brakes Carbon Compound is a carbon-reinforced resin brake pad designed for Shimano 2-piston flat-mount systems. It combines a proven organic base with a carbon matrix to deliver smooth modulation, low noise, and improved heat stability without pushing into premium price territory.

Why Choose Carbon Over Standard Resin?

Standard budget resin pads work well at low temperatures, but once heat builds, performance can drop off quickly. Our Carbon Compound is built to stay more consistent when things get harder, giving road and gravel riders better control on fast sections, longer descents, and repeated braking zones.

  • More stable friction under heat
  • Less fade than standard resin pads
  • Smooth, progressive braking feel
  • Very quiet when bedded in and set up correctly
  • Rotor-friendly compound for everyday riding

Key Performance Features

Quiet Braking: Engineered to minimise vibration and squeal. One of our quietest compounds when the brake system is correctly set up.

Superior Modulation: Smooth, progressive braking for riders who prefer controlled speed management rather than aggressive on/off bite.

Carbon-Reinforced Stability: Helps maintain consistent braking feel as temperatures rise, reducing fade compared with standard resin pads.

Nickel-Plated Backing Plate: Corrosion-resistant with a clean premium finish, helping protect the pad backing from rust.

Rotor Friendly: Softer carbon-resin interface helps reduce rotor wear and beds in quickly.

E-Bike Compatible: Suitable for modern e-road and e-gravel bikes where extra system weight increases braking demand.

Performance Overview

Attribute Score Recommendation
Braking Power 85/100 Strong controlled stopping for road and gravel
Modulation 95/100 Smooth, progressive lever feel
Direct Brake Feel 75/100 Linear and predictable
Heat Resistance 85/100 Improved fade resistance on longer descents
Dry Noise Level 95/100 Very quiet when bedded correctly
Wear Resistance 75/100 Reliable durability for daily use
Wet Performance 45/100 Best suited to dry and mixed conditions

Compatibility

This pad is a direct replacement for Shimano K05S, L05A, and L03A style pads.

  • Shimano Dura-Ace: BR-R9270, BR-R9170
  • Shimano Ultegra: BR-R8170, BR-R8070
  • Shimano 105: BR-R7170, BR-R7070, BR-RS505, BR-RS805
  • Shimano Tiagra: BR-4770, BR-RS405
  • Shimano GRX: BR-RX810, BR-RX600, BR-RX400
  • Shimano Flat Mount MTB: BR-M9110, BR-M8110, BR-M7110
  • Other Shimano Systems: Metrea BR-U5000, RS305, RS405

Things to Note

  • Designed mainly for road, gravel, commuting, and mixed-condition riding
  • Best performance comes after a proper bedding-in process
  • Wet performance is lower than our sintered or Enduro Pro compounds
  • For heavy mud, alpine descents, downhill, or full-power e-MTB use, choose Sintered or Enduro Pro instead
  • Brake noise is usually linked to setup, rotor condition, piston balance, contamination, or bedding-in rather than the pad alone
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❓ Frequently Asked Questions

These are L / K-Type pads designed to replace Shimano K05S, L05A, and L03A. They fit most Shimano 2-piston flat-mount road and gravel systems including GRX, 105, Ultegra, and Dura-Ace. If you’re unsure, just message us and we’ll confirm.

Standard resin pads work well at low temperatures but can fade when pushed harder. The carbon-reinforced compound improves heat stability, giving more consistent braking on longer descents with a smoother feel.

Yes — this is one of our quietest compounds. When properly bedded in and the system is set up correctly, they run very quietly. Noise is usually caused by setup issues rather than the pad itself.

They take slightly longer than standard resin pads. We recommend 15–20 controlled stops from speed to build a proper transfer layer. Once bedded in, performance becomes consistent and stable.

They perform best in dry and mixed conditions. In heavy rain or mud, braking performance will be lower than sintered pads. For regular wet riding, we’d recommend Sintered or Enduro Pro compounds.

Brake power comes from the brake system itself (caliper, pistons, fluid, rotor size). Pads control how that power is delivered. These improve modulation and consistency rather than just adding aggressive bite.

Yes — they are suitable for e-road and e-gravel bikes. The carbon compound handles the extra load better than standard resin pads. For full-power e-MTB use, a more aggressive compound is recommended.

No — they are rotor-friendly. The softer carbon-resin compound reduces rotor wear compared to harder metallic pads.

Noise is usually caused by setup issues, not the pad itself. Common causes include contamination, uneven piston movement, poor alignment, or incomplete bedding-in. Once the system is clean and properly set up, these pads run quietly.

These are ideal for road, gravel, commuting, and general riding where you want smooth, quiet, and predictable braking. For aggressive riding, downhill, or alpine descents, we recommend Enduro Pro or Sintered compounds.