D1-307 Girodisc Toyota GR Supra, BMW 348mm Front Replacement Rings 1 "a"

$1,248.00

D1-307 Girodisc Toyota GR Supra, BMW 348mm Front Replacement Rings

$1,248.00

D1-307 Girodisc Toyota GR Supra, BMW 348mm Front Replacement Rings

Price: $880.00

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

Vehicle Fitment

  • Toyota GR Supra 3.0 – Front (for A1-307 kits)
  • BMW G-chassis with 348 mm front rotors – Front (for A1-307 kits)

Quick Refresh, Track-Ready

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

Features

  • Replacement rings only; hardware included
  • Direct fit for Girodisc A1-307 front rotor kits
  • High-carbon iron; USA-poured and machined
  • Curved-vane cooling geometry
  • Sold/priced per pair

D1-307 FAQs

Minimum thickness? Follow A1-307 service spec (34 mm) or replace sooner if any crack reaches the outer edge.

Can I reuse old hardware? No — use the supplied new hardware and torque per instructions.

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