• Brembo GR-PRO +40mm brake adapter shown installed with a red caliper and disc rotor
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Brembo GR-PRO +40mm Brake Adapter | Official Brembo MTB Disc Brake Mount Adapter

Brembo GR-PRO +40mm Brake Adapter | Official Brembo MTB Disc Brake Mount Adapter

£22.99 GBP
£22.99 GBP
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£22.99

Brembo GR-PRO +40mm Brake Adapter is an official Brembo brake mount adapter for fitting larger rotor setups with Brembo GR-PRO mountain bike disc brakes.

This +40mm adapter positions the caliper for a rotor with a diameter 40mm larger than the size specified for the original frame or fork mount. The +40mm designation refers to the increase in rotor diameter, not the physical distance the caliper moves.

The Brembo GR-PRO system is designed as a complete high-performance braking package, including calipers, master cylinders, discs, pads, hoses, mounts, brackets and bleeding kit. This adapter is part of the GR-PRO mounting hardware range and helps position the caliper correctly over the rotor.

Ideal for downhill, enduro, e-bike and aggressive trail riding where riders may need the extra leverage, heat capacity and braking control of a larger rotor.

Key Features

  • Official Brembo GR-PRO +40mm brake mount adapter
  • Positions the caliper for a 40mm increase in rotor diameter
  • Designed for Brembo GR-PRO MTB brake systems
  • Suitable for selected downhill, enduro, e-bike and MTB applications
  • Helps achieve correct caliper alignment with larger disc rotors
  • Precision mounting hardware for high-performance brake setups

Compatibility

Designed for use with Brembo GR-PRO hydraulic mountain bike brake systems.

A +40mm brake adapter is commonly used when increasing rotor diameter by 40mm, depending on the original frame or fork mount size and the final rotor size being fitted.

Check the original frame or fork mount size, the intended rotor diameter and the manufacturer’s maximum permitted rotor size before ordering. The currently fitted rotor size alone does not determine the correct adapter.

Common Rotor Size Changes

  • 160mm rotor to 200mm rotor (relative to the original mount size)
  • 180mm rotor to 220mm rotor (relative to the original mount size)

Important: Brake adapters are not universal. Always confirm the correct mount type, rotor size and brake compatibility before installation.

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❓ Frequently Asked Questions

It positions the caliper for a rotor 40mm larger in diameter than the size specified for the original frame or fork mount. +40mm refers to the increase in rotor diameter, not the physical distance the caliper moves. Confirm mount, caliper and rotor compatibility before fitting.

Examples are 160mm to 200mm or 180mm to 220mm, measured from the rotor size specified for the original frame or fork mount. Check the native Post Mount size, intended rotor diameter and manufacturer’s rotor limits. The currently fitted rotor size alone does not determine the correct adapter.

Yes, this listing is for a Brembo GR-PRO +40mm brake mount adapter.

No. Confirm the original frame or fork mount type and size, the brake caliper, intended rotor diameter and manufacturer’s maximum permitted rotor size. The currently fitted rotor size alone does not establish compatibility.

A larger rotor can improve braking leverage and heat management, which is useful for downhill, enduro, e-bike and long descent riding.