D1-012 Girodisc BMW E46 M3 Front Replacement Rings (345×28 mm) 1 "a"

$680.00

D1-012 Girodisc BMW E46 M3 Front Replacement Rings (345×28 mm)

$680.00
Product Description:

D1-012 Girodisc BMW E46 M3 Front Replacement Rings (345×28 mm)

Rings only, sold as a pair with new hardware. Reuse your existing Girodisc aluminum hats. These rings are designed exclusively for Girodisc hats and will not fit OE or other aftermarket hats.

Vehicle Fitment

  • BMW E46 M3 (ZCP/Competition Package) – Front
  • BMW E46 M3 CSL – Front

Serviceable Two-Piece Design

High-carbon iron rings with 48 curved vanes move air efficiently to control temperatures. New drive pins, clips, and Belleville washers restore proper float and clamp force when refreshing your rotors.

Dimensions

  • Diameter: 345 mm
  • Thickness: 28 mm
  • Weight: ~17.5 lb per rotor assembly (complete A1-012)

Features

  • Replacement rings only; includes hardware
  • Direct fit for Girodisc A1-012 front rotor assemblies
  • High-carbon iron; USA-poured and machined
  • Sold/priced per pair

D1-012 FAQs

Minimum thickness? Replace at 26 mm, or sooner if a crack reaches the ring’s edge.

Caliper compatibility? Works with OEM ZCP/CSL calipers and popular swaps such as Brembo 996 and Megane RS when paired with the correct hats/brackets.

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