EBC GD Turbo Grooved Rear Brake Discs/Rotors for BMW 1 Series F20 F21 M135i/M140i (2011-2019) 345 x 66 mm – Slotted & Dimpled Uprated Performance Rear Brakes, Vented Zinc-Coated OE-Size Direct Replacement Fast Road Pair

Rear Performance Rotors for BMW 1 Series F20 F21 – 345 x 66 mm – EBC groove and dimple pattern

Give your BMW 1 Series a serious stopping upgrade with EBC rear rotors featuring a slot and dimple layout designed for fast-road driving and confident everyday use. These uprated rear discs deliver a strong initial bite, reliable pedal feel and excellent heat control on the F20 and F21 chassis at the OE size of 345 x 66 mm.

Why this upgrade works

• Deep, directional channels draw cooling air over the friction surface to manage temperatures and help resist fade during spirited road drives.
• Blind dimples vent gases without the cracking risk associated with fully drilled discs, maintaining structural integrity.
• Slots sweeping to the outer edge clear dust, water and pad deposits for a clean contact patch and consistent bite.
• Even pad wear supports a stable, predictable brake pedal and longer component life.
• Gold zinc passivation protects non-swept areas from corrosion for a tidy look behind your wheels.
• Track-inspired design, tuned for the road and direct fitment on the rear axle.

We have fitted these at MJ Modifications and run them ourselves. Feedback from our customers is consistently positive, praising the sharper response, dependable performance on fast A-road runs and tidy appearance thanks to the anti-corrosion coating. For a complete package, pair with EBC Yellowstuff performance pads for confident, repeatable braking.

Fitment and sizing

Rear axle fitment for BMW 1 Series F20 F21. Disc size: 345 x 66 mm.

Noise and bedding-in

A light whoosh from the slots can be present, especially when new. Follow a proper bedding-in routine and this typically settles after normal road use, leaving smooth, consistent performance.

Professional fitting available

We recommend expert installation and correct torque procedures. Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Search-friendly terms

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