Description
Frozen Rotors® Slotted brake rotors are designed to improve braking performance, deliver consistent stopping power, and enhance brake response. Precision CNC-machined slots help reduce brake fade caused by gas buildup between the brake pads and rotor surface while cleaning and refreshing the pad contact area for improved braking bite.
The slots are machined to the rotor's discard depth, providing a convenient wear indicator. When the slots are no longer visible, it indicates that the rotor has reached its replacement point.
Slotted rotors also improve wet-weather braking by creating channels for water to escape from the braking surface. Recommended for performance vehicles and demanding driving conditions, they provide improved braking confidence and stopping response.
Key Features & Benefits
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Precision CNC-machined slots for accuracy and balance
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Improved braking bite and stopping response
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Helps reduce brake fade by preventing gas buildup between the pads and rotor
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Cleans and refreshes the brake pad contact surface
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Improved wet-weather braking by channeling water away
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Slots machined to discard depth for convenient rotor wear indication
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Enhanced appearance
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Designed for performance and demanding driving applications
Vehicle Fitment
2016–2018 BMW X4 M40i – All models
2018 BMW X4 M40i – Models equipped with 348mm front discs and 330mm rear discs
Fitment Note
The 2018 BMW X4 M40i has an additional brake-specific application requiring 348mm front discs and 330mm rear discs. Verify your vehicle's exact brake configuration and rotor dimensions before ordering.
