Girodisc D1-130 Front Brake Rotor Ring Pair Audi B8 S4 and S5
Girodisc D1-130 380mm rotor rings are the proper replacements for the A1-130 Rotor System. The A1-130 discs have a minimum thickness spec of 28mm, once this thickness is reached they should be replaced. This D1-130 kit includes left and right rotor rings as well as the ring to hat attachment hardware and full instructions for re-assembly.
Girodisc D1-130 Brake Disc Vehicle Fitment:
Girodisc Brake Rotor Manufacturing: The discs are made from Girodiscs own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. 10 high strength cadmium plated alloy steel drive pins along with grade 12 cap screws and hardened washers are used to attach the rotor to the hat.