What is a floating rotor system?

A floating rotor system uses two separate pieces: a disc ring and a hat. This allows the disc ring to expand and contract with heat independently of the hat, which can help prevent rotor warping and improve braking consistency.

What is the purpose of the swept groove finish?

The swept groove finish on this rotor ring helps to sweep away brake dust and gases that can build up between the pad and rotor surface. This helps maintain a cleaner contact patch for more consistent and reliable braking performance.

Does this replacement disc ring come with the rotor hat or mounting hardware?

This product is a replacement disc ring only. It is designed to be used with the corresponding rotor hat and any necessary mounting hardware, which are typically sold separately or are part of a complete two-piece rotor assembly.

EBC Racing 400mm Dia 36/34 Thick Floating SD-Rotor Right Replacement Disc Ring

Specifications

Brand: EBC
Part #: SGDR400X36 D80RH
UPC: 889668250749

EBC Racing 400mm Dia 36/34 Thick Floating SD-Rotor Right Replacement Disc Ring

Name: EBC Racing 400mm Dia 36/34 Thick Floating SD-Rotor Right Replacement Disc Ring
Brand: EBC
Price: 462.81 USD
Availability: InStock

$462.81

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2012-2018 BMW M6. This is the right-side replacement disc ring for a 400mm floating brake rotor, featuring a swept grooved finish.

Key Features

Fits 2012-2018 BMW M6, 2014-2018 BMW M6 Gran Coupe, 2013-2016 BMW M5, and 2019-2021 BMW M2.
This is the right-side replacement disc ring for a 400mm diameter vented floating rotor.
Features 48 curved vanes for improved airflow and cooling.
Has a swept grooved finish to help clear dust and gas from the braking surface.
New thickness is 36mm, with a minimum service thickness of 34mm.

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Product Details

What you get here is the right-side replacement disc ring for a 400mm diameter, vented, floating brake rotor assembly. This part is designed for the front right position on performance BMW models. It features 48 curved vanes to help with airflow and a swept grooved finish, which helps keep the rotor surface clean and consistent during hard braking.

EBC Racing builds these two-piece rotor assemblies with a focus on high performance. This disc ring is a key component of their fully-floating rotor system, which allows for better thermal management and pad-to-rotor contact under demanding conditions. The swept groove pattern is a notable design choice that helps clear away dust and gas, contributing to more reliable stopping power when you need it most. The new thickness is 36mm, with a minimum service thickness of 34mm.