Triton Motorsports' floating brake discs bring true two-piece rotor construction to the BMW M2, M3, and M4 — a floating aluminum bell paired with a separate iron alloy disc ring, built to handle sustained track use without the drawbacks of a fixed OEM rotor.
The floating design allows the disc ring to expand and contract independently of the bell as temperatures rise, reducing warping and internal stress that a one-piece rotor can't dissipate as effectively. Combined with directional venting for improved airflow, that means more consistent heat management and a lower risk of fade during repeated hard stops, whether you're on a track day or just driving the car the way it was meant to be driven.
Key Features:
- Two-Piece Floating Construction — separate bell and disc ring reduce thermal stress and warping versus a fixed one-piece rotor
- Improved Ventilation — directional vane design supports more consistent heat dissipation under sustained braking
- Reduced Unsprung Weight — the aluminum bell trims mass at each corner compared to a fixed iron alloy rotor, supporting sharper handling response
- Built for Repeated Hard Use — engineered for durability across both street and track conditions
Front 380x36mm
Rear 370x24mm
Replace part #s BMW-34112284809, BMW-34112284810, BMW-34212284811, BMW-34212284812
Fitment: F87 BMW M2
F80 BMW M3
F82 BMW M4
Disc Material: G3500 High Carbon Iron Alloy
Hat Material: Billet Aluminum
Warranty: 1y/36000 mi (whichever comes first) against manufacturer defects.
Note: Several other machining patterns are available. Please contact us via email at info@tritonmotorsportsusa.com to discuss.
The price is for a set of discs. Pads are not included.
Turn around time ~35 days
**For replacement rotor rings, please contact us via email.
**Noise reduction/anti vibration shims are highly recommended.
#Hardware pictured is optimized for weight. If you desire Bobbin style hardware for more space, please specify via email.
##Weight reduction dependent on OE construction and may not be as significant in all applications.
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