Girodisc Front Replacement Rotor Rings for BMW E9X M3 & E82 1M (D1-157)

Genuine Girodisc Front Replacement Rings – BMW E9X M3 & E82 1M

Keep your Girodisc braking system performing at its best with the Girodisc D1-157 Front Replacement Rotor Rings. Designed specifically for Girodisc two-piece front rotor assemblies, these premium replacement friction rings allow you to restore braking performance without replacing the original aluminium centre hats, making routine servicing both economical and efficient.

Manufactured from Girodisc's proprietary high-carbon cast iron, these replacement rings provide exceptional thermal stability, consistent braking performance, and outstanding durability for spirited road driving, track days, and motorsport applications.

Designed for Girodisc Two-Piece Rotor Systems

The D1-157 replacement rings are engineered exclusively for Girodisc A1-157 front rotor assemblies. When your existing friction rings reach their service limit, simply replace the cast iron rings while reusing your original Girodisc aluminium hats.

Each kit includes a pair of replacement rotor rings together with new mounting hardware, ensuring a straightforward rebuild of your existing Girodisc rotors.

Features

• Genuine Girodisc D1-157 replacement rotor rings
• 360mm front rotor diameter
• Direct replacement for Girodisc A1-157 front rotor assemblies
• Manufactured from proprietary high-carbon cast iron
• Includes complete replacement hardware kit
• Reuses existing Girodisc aluminium centre hats
• Restores original Girodisc braking performance
• Excellent heat dissipation and fade resistance
• Cost-effective servicing solution
• Suitable for road, fast road, track day and motorsport use
• Sold as a pair

Important Compatibility Information

These replacement rotor rings are designed only for Girodisc aluminium hats.

They are not compatible with OEM BMW two-piece rotors or rotor hats from other manufacturers. Please verify that your vehicle is already equipped with Girodisc A1-157 front rotors before ordering.

Vehicle Fitment

Compatible with vehicles fitted with the Girodisc A1-157 Front Rotor Kit, including:

• BMW E90 M3
• BMW E92 M3
• BMW E93 M3
• BMW E82 1M Coupe

Note: These replacement rings are intended for existing Girodisc rotor assemblies only and are not suitable for factory BMW brake discs.

Why Choose Girodisc Replacement Rings?

Girodisc's modular two-piece rotor design makes brake servicing significantly more cost-effective. Instead of replacing an entire rotor assembly, you simply install new friction rings while retaining the original lightweight aluminium hats.

Benefits include:

• Reduced long-term maintenance costs
• Lower unsprung and rotating mass retained
• Less waste compared to complete rotor replacement
• Restored braking performance
• Continued reliability for demanding driving conditions

Whether your BMW is driven daily, enjoys regular track days or sees competitive motorsport use, Girodisc replacement rings provide a simple way to maintain the performance your braking system was designed to deliver.

Package Contents

• 2 × Girodisc D1-157 Front Replacement Rotor Rings
• Complete replacement mounting hardware
• Ready for installation onto existing Girodisc hats