Alcon 370x25mm 2-Piece Semi-Floating Rear Brake Discs/Rotors (Pair) for BMW F80 M3, F82/F83 M4, F87 M2 & M2 Competition - Brembo Compatible Direct Bolt-On, Lightweight Performance OE Replacement F8X Track Upgrade

Alcon 370 x 25 mm Rear Two-Piece Discs for BMW F80, F82, F83, F87 with Brembo Rear Calipers

Looking for a serious rear braking upgrade for your BMW M car without changing calipers or lines? This pair of Alcon rear two-piece discs delivers a bolt-on, high-performance solution for F80 M3, F82 M4, F83 M4 and F87 M2 including M2 Competition models equipped with factory Brembo rear calipers. The semi floating construction and lightweight alloy bell reduce unsprung weight and help control temperatures for consistent, repeatable braking on fast road and track days.

Engineered by Alcon and supplied as a left and right set, these discs feature a rebuildable bell and rotor arrangement for long-term value. You get the precision of a premium motorsport manufacturer with everyday usability, improved pedal response and stable performance lap after lap. Includes disc hub and bell.

At MJ Modifications we have fitted these on customer M2, M3 and M4 builds and feedback has been consistently positive: firmer pedal, dependable bite and confidence under repeated hard stops. If you are searching for a BMW M rear rotor upgrade that fits like original equipment and performs far beyond standard, this is the setup we recommend.

Why enthusiasts choose this Alcon rear setup

• Direct swap for BMW F80, F82, F83 and F87 models with OEM Brembo rear calipers
• Semi floating, dual-piece architecture for better thermal control and reduced unsprung mass
• Billet alloy bell for strength and weight saving
• Rebuildable bell and ring for longevity and lower running costs
• Ideal for fast road, track day and spirited driving
• Trusted Alcon performance engineering

Specifications

• Disc size: 370 mm diameter x 25 mm thickness
• Configuration: two-piece, semi floating
• Supplied as a matched left and right pair

Vehicle fitment

• BMW F87 M2 2014–2018
• BMW F87 M2 LCI 2016–2018
• BMW F87 M2 Competition 2018–2020
• BMW F80 M3 Saloon 2012–2018
• BMW F82 M4 Coupe 2013–2020
• BMW F83 M4 Convertible 2013–2020

Note: For vehicles fitted with factory Brembo rear calipers.

What you receive

• 1 x left-side Alcon rear disc
• 1 x right-side Alcon rear disc

Part number

DIV2175X862C24

Search-worthy benefits

BMW M2 rear disc upgrade, BMW M3 F80 rear rotor replacement, BMW M4 performance rear discs, 370 mm rear rotors for BMW M, two-piece rear brake disc kit, Brembo-compatible rear discs, lightweight alloy bell rotors, track day rear brakes, fast road braking upgrade, direct replacement rear rotors for BMW M cars.

Professional fitting

Installation and bedding-in available at MJ Modifications in Warwickshire. For a fitting quote or to confirm compatibility to your VIN, email info@mjmodifications.co.uk.