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MMX Performance 2-Piece 325mm Rear Rotors - Mini Cooper JCW (F5x) 2015-2024
Lease for as low as $/week
The MMX 2-Piece 325mm Rear Rotor Conversion is a direct bolt-on rear-axle upgrade for MINI Gen 3 F55, F56, and F57 JCW models. Where the OEM rear disc is a small single-piece unit that struggles under repeated heavy braking, this conversion drops in a true 2-piece floating rotor, paired with a JCW-red caliper carrier bracket that repositions the OEM rear caliper outboard to suit the larger 325mm disc. The result is a meaningful step up in rear-axle braking capability without changing calipers or losing the OEM hand-brake function.
The friction ring is a proprietary high-carbon iron compound paired with a CNC-machined 6061-T6 aerospace-grade aluminum center hat, connected by a floating bobbin system. That mount allows full thermal expansion as the rotor heats, eliminating warping and surface cracking. MMX's signature directional groove pattern is machined across the friction face for stronger initial bite and clean pad-rotor interface under load.
The kit ships complete, left- and right-handed rotors, floating bobbins pre-installed, the JCW-red anodized caliper carrier bracket, and all required fitting hardware. The OEM rear caliper is retained. OEM or aftermarket rear pads can be used. Match this to the MMR31-1410F front 335×30mm set for a complete F-chassis MINI brake refresh.
Product Details
- Diameter × thickness: 325mm × 10mm
- 2-piece floating construction with floating bobbin mounting system
- Proprietary high-carbon iron rotor ring with directional grooves
- 6061-T6 aerospace-grade aluminum center hat (CNC-machined)
- JCW-red anodized caliper carrier bracket included: relocates OEM rear caliper outboard for 325mm fitment
- SKU: MMR31-1411R
What's Included
- 1× pair of 2-piece floating rear rotors (left + right directional, 325mm × 10mm)
- Rear caliper carrier brackets: JCW-red anodized finish
- Floating bobbins pre-assembled
- All required fitting hardware
- Brake pads not included: sold separately
Vehicle Applications
- MINI F55/F56 JCW
Related Products
- MMX MINI F-Chassis 2-Piece Floating Front Rotor 335×30mm
Notes
- MINI F57 JCW: Cabriolet (please contact us to confirm collection page)
- Discs are directional: left- and right-handed specific. Verify orientation before installation.
- Sold as a pair. Pair with MMR31-1410F front rotor set for a complete F-chassis MINI brake refresh.
- Please note: our rear 2-piece discs/rotors for the MINI F-Series does not fit the electric handbrake variants. Our rear kit includes a dedicated carrier bracket using the OE mounting hardware rather than a simple spacer to ensure superior alignment, strength, and performance.
- Includes a 1-year manufacturer warranty against defects in materials and workmanship
- Designed and tested in the United Kingdom
Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new.
Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.
Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.
Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.
Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.
Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.
Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.
You can simply contact us via email / telephone for a live inventory check
Find more information at www.P65Warnings.ca.gov.