Front Slotted Rotor Rings, Girodisc - E9X 335d/335i, E84 X1 35i

Replacement friction rings for Girodisc brake assembly

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Price:
$649.99

Replacement rotor friction rings with hardware for the front Girodiscs on E9X 335d, 335i, and E84 X1 35i. These are the cast iron rings only and you must already have the Girodisc center hat.

Girodisc (guy-ro) rotors are made for track/race cars as part of a two-piece disc + hat assembly. Keep the aluminum hat and only replace the cast iron friction ring. New hardware is included with new rings. Girodisc rings are cast in the USA from their own proprietary cast iron, cadmium plated for corrosion resistance, and then painstakingly machined and balanced in the USA.

Two-piece rotors are standard equipment on race cars thanks to weight savings and improved cooling. The rotor has a curved inner vane configuration that works like a centrifugal pump to force air through the rotor. If you're not yet ready to jump up to a larger big brake kit, the Girodisc is the next best thing. With it's two-piece and serviceable design, you can improve on the stock braking system performance without having to commit to larger, heavier, and costlier brake kits.

Girodisc has nearly 20 years of experience as a brake disc supplier to major international race teams and series. Originally manufacturing replacement rings for racing brake kits from Brembo, StopTech, and others, they now supply direct-replacement rotor upgrades for OEM brake systems. All material and components are sourced from the USA with Girodisc doing all of their machining in-house. While also offering other niche products, rotors are their primary product which guarantees excellent quality and satisfaction.

Price is for the pair of friction rings with hardware.

BMW Fitments:

3 Series
E90 / E91 / E92 / E93 (06-13) > 335d
E90 / E91 / E92 / E93 (06-13) > 335i
E90 / E91 / E92 / E93 (06-13) > 335is
E90 / E91 / E92 / E93 (06-13) > 335xi
X1 Series
E84 X1 (2013-2015) > X1 35i xDrive
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