2025-2026+ BMW X3 M50 (G45) Carbon Ceramic Brake Rotors 7 Series The standard Model 3 uses

The standard Model 3 uses a 320mm front and 335mm rear

since caliper radial position is fixed

395mm 345mm 20"

On the R230

Straight physics: a cold carbon-ceramic disc bites a little less than cold iron until it warms

2025-2026+ BMW X3 M50 (G45) Carbon Ceramic Brake Rotors 7 Series The standard Model 3 usesReal Customer Builds & Reviews View All Will This Fit My Car? Direct Replacement CCB Discs (Retain Factory Calipers) for the 2025 2026+ BMW X3 M50 (G45). Factory rotor specifications and the smallest wheel that clears each trim: Trim Front Rotor (Factory) Rear Rotor (Factory) Min. Wheel Size X3 M50 374mm, 395mm 345mm 20" Keep Your Factory Calipers? The rule is simple: front factory calipers must be 4 piston or more; the rear has no limit. A 1 or 2