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X3 F25 StopTech Big Brake Rotors, Discs, & Friction Rings

X3 F25 StopTech Big Brake Rotors, Discs, & Friction Rings Replacement StopTech AeroRotors for Big Brake Kits. These are direct replacement discs for those used on Big Brake Kits and will not replace the rotors on your original equipment brake system. To install these you will remove the rotor/hat assembly, remove the hat from the friction disc, and assemble the new disc with the original hat. New hardware is supplied with each disc. We offer replacements in cross-drilled or slotted and in the standard finish or with an anti-corrosion zinc coating.

Click here for a detailed diagram showing disc measurements.

Click here for rotor replacement instructions.
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Wide Annulus StopTech 380x32mm Rotors for Big Brake Kits - Left & Right Pair Wide Annulus StopTech AeroRotor for big brake kits - 380mm diameter, 32mm thickness. These rotors are the wide annulus. There is more surface area to the rotor which helps in thermal capacity and more swept area for the pad. Note that you will need new brake rotor hats (smaller) and the new (larger) pads to work with these rotors. Choose from either slotted or cross-drilled. Comes with new race mounting hardware to re-use the original StopTech mounting hat. This is for a Left and Right Pair.

Size: 380x32mm
Type: Gas-Slotted or Cross-Drilled
Fitment: Left and Right Pair
Applications: Fits any StopTech Big Brake Kit that uses the 380x32mm disc (wide annulus)
StopTech
Part #: TMS338983
Price: $719.90 (USD) 
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Replacement StopTech 332x32mm Rotors for Big Brake Kits - Left & Right Pair Replacement StopTech AeroRotor for big brake kits - 332mm diameter, 32mm thickness. Choose from either slotted or cross-drilled and standard finish or corrosion-resistant zinc coating. Comes with new mounting hardware to re-use the original StopTech mounting hat. This is for a Left and Right Pair.

Size: 332x32mm
Type: Gas-Slotted or Cross-Drilled
Finish: standard finish (no coating), or zinc coating
Fitment: Left and Right Pair
Applications: Fits any StopTech Big Brake Kit that uses the 332x32mm disc.
StopTech
Part #: ST0PTECH332X32
Price: $651.90 (USD) 
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Replacement StopTech 355x35mm Rotors for Big Brake Kits - Left & Right Pair Replacement StopTech AeroRotor for big brake kits - 355mm diameter, 35mm thickness. Choose from either slotted or cross-drilled and standard finish or corrosion-resistant zinc coating. Comes with new mounting hardware to re-use the original StopTech mounting hat. This is for a Left and Right Pair.

Size: 355x35mm
Type: Gas-Slotted or Cross-Drilled
Finish: standard finish (no coating), or zinc coating
Fitment: Left and Right Pair
Applications: Fits any StopTech Big Brake Kit that uses the 355x35mm disc.
StopTech
Part #: ST0PTECH355X35
Price: $690.00 (USD) 
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Replacement StopTech 355x32mm Rotors for Big Brake Kits - Left & Right Pair Replacement StopTech AeroRotor for big brake kits - 355mm diameter, 32mm thickness. Choose from either slotted or cross-drilled and standard finish or corrosion-resistant zinc coating. Comes with new mounting hardware to re-use the original StopTech mounting hat. This is for a Left and Right Pair.

Size: 355x32mm
Type: Gas-Slotted or Cross-Drilled
Finish: standard finish (no coating), or zinc coating
Fitment: Left and Right Pair
Applications: Fits any StopTech Big Brake Kit that uses the 355x32mm disc.
StopTech
Part #: ST0PTECH355X32
Price: $671.90 (USD) 
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Replacement StopTech 380x32mm Rotors for Big Brake Kits - Left & Right Pair Replacement StopTech AeroRotor for big brake kits - 380mm diameter, 32mm thickness. Choose from either slotted or cross-drilled and standard finish or corrosion-resistant zinc coating. Comes with new mounting hardware to re-use the original StopTech mounting hat. This is for a Left and Right Pair.

Size: 380x32mm
Type: Gas-Slotted or Cross-Drilled
Finish: standard finish (no coating), or zinc coating
Fitment: Left and Right Pair
Applications: Fits any StopTech Big Brake Kit that uses the 380x32mm disc (standard annulus)
StopTech
Part #: ST0PTECH380X32
Price: $719.90 (USD) 
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Replacement StopTech 328x28mm Rotors for Big Brake Kits - Left & Right Pair Replacement StopTech AeroRotor for big brake kits - 328mm diameter, 28mm thickness. Choose from either slotted or cross-drilled and standard finish or corrosion-resistant zinc coating. Comes with new mounting hardware to re-use the original StopTech mounting hat. This is for a Left and Right Pair.

Size: 328x28mm
Type: Gas-Slotted or Cross-Drilled
Finish: standard finish (no coating), or zinc coating
Fitment: Left and Right Pair
Applications: Fits any StopTech Big Brake Kit that uses the 328x28mm disc.
StopTech
Part #: ST0PTECH328X28
Price: $611.90 (USD) 
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Replacement StopTech 380x35mm Rotors for Big Brake Kits - Left & Right Pair Replacement StopTech AeroRotor for big brake kits - 380mm diameter, 35mm thickness. Choose from either slotted or cross-drilled and with a standard finish or corrosion-resistant zinc coating. Comes with new mounting hardware to re-use the original StopTech mounting hat. This is for a Left and Right Pair.

Size: 380x35mm
Type: Gas-Slotted or Cross-Drilled
Finish: standard finish (no coating), or zinc coating
Fitment: Left and Right Pair
Applications: Fits any StopTech Big Brake Kit that uses the 380x35mm disc.
StopTech
Part #: ST0PTECH380X35
Price: $741.90 (USD) 
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Replacement StopTech 345x28mm Rotors for Big Brake Kits - Left & Right Pair Replacement StopTech AeroRotor for big brake kits - 345mm diameter, 28mm thickness. Choose from either slotted or cross-drilled and standard finish or corrosion-resistant zinc coating. Comes with new mounting hardware to re-use the original StopTech mounting hat. This is for a Left and Right Pair.

Size: 345x28mm
Type: Gas-Slotted or Cross-Drilled
Finish: standard finish (no coating), or zinc coating
Fitment: Left and Right Pair
Applications: Fits any StopTech Big Brake Kit that uses the 345x28mm disc.
StopTech
Part #: ST0PTECH345X28
Price: $671.90 (USD) 
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on orders $99 and up