EBC Turbo Groove Front Brake Discs/Rotors 340mm (Pair) - BMW 1 Series F20 F21 2011-2019 M135i M140i - Slotted Dimpled Vented Performance Upgrade - EBC GD Series Fast Road Direct Fit

Performance front rotors for BMW 1 Series F20 F21 M135i M140i - 340 mm pair

Give your BMW sharper response and consistent stopping with EBC’s Turbo Groove pattern rotors. Designed for fast-road driving, these 340 mm front discs transform pedal feel, keep temperatures in check and maintain confidence when you press on. Ideal for F20 and F21 M135i and M140i owners seeking a serious braking upgrade without changing calipers.

Why these rotors stand out

• Groove pattern actively clears dust and water for clean pad contact and strong bite in all weather.
• Dimple vents allow surface gas to escape while preserving disc integrity for durability under repeated heavy stops.
• Thermal management helps resist fade during enthusiastic road use, supporting consistent pedal feel.
• Coated hubs and edges for corrosion resistance that keeps the discs looking smart behind your wheels.
• Precision cast and balanced for smooth operation and confidence-inspiring braking performance.
• Direct replacement for the OE front discs - no modifications required.

For the best fast-road setup, pair these rotors with EBC Yellowstuff pads for improved initial bite and repeatable performance.

Fitment and sizing

• Position: Front axle
• Diameter: 340 mm
• Vehicle: BMW 1 Series F20 and F21 including M135i and M140i with 340 mm factory front brakes
• Supplied as a matched left and right disc

Real-world feedback

We have run these on our own builds and supplied them to many BMW owners. The common feedback is stronger bite, better control on brisk drives and a reassuringly consistent pedal.

Installation and support

These rotors are a straightforward swap for the original discs. For professional fitting and brake fluid upgrades, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Bedding-in and noise

A light whoosh from the grooves can be noticeable at first and typically settles after a short bedding period. Follow sensible bed-in procedures to maximise performance and pad life.

Search terms customers use

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