Tarox Performance Front Brake Discs/Rotors BMW 1 Series M135i M140i (F20/F21) 340mm Vented – Slotted Drilled Grooved – xDrive Compatible – G88 F2000 Sport Japan – Fast Road & Track Day, OE-Spec Direct Replacement

BMW 1 Series M135i and M140i front rotor upgrade - 340 mm vented
Transform pedal feel and stopping distances on road and track with premium Tarox front rotors engineered for the M135i and M140i, including xDrive all-wheel drive models. This is a direct-fit, high performance replacement for the factory 340 mm front set-up, delivering sharper bite, cooler running and outstanding resistance to fade.

Why enthusiasts choose this upgrade

• Precision engineered from OE-spec castings with stringent quality control and stress-relief heat treatment for long-term stability
• CNC machined faces then individually precision ground to an ultra-flat finish with run-out tolerance around 0.015 mm for smooth, vibration-free braking
• Vented 340 mm diameter for superior heat management under repeated hard stops
• Hand finished braking surfaces for consistent pad contact and confident pedal response
• Proven on fast road and track day cars by our customers and in our own builds

Choose your face design

• G88 - Multiple radial grooves create a turbine effect that moves hot gases away from the pad contact patch. Helps the rotor run cooler and reduces the chance of judder or cracking under extreme use.
• F2000 - Curved slots that deglaze pads and balance heat dissipation with strength. Ideal for mixed fast road and serious track sessions.
• Sport Japan - Fully drilled and grooved with countersunk holes to vent gases that cause fade, plus six slots to keep the friction layer fresh. Tough looks, serious performance.

Key specifications

• Front axle fitment
• Diameter: 340 mm
• Type: Vented
• Based on original equipment specification castings
• Many applications are TUV and ABE approved

Best pad pairing
For the strongest results on heat-treated Tarox rotors, use with Tarox pads such as Strada for fast road or Corsa for track day use. This combo offers improved bite, reduced fade and consistent performance from cold to hot.

Fitment and compatibility keywords
BMW M135i front rotors, BMW M140i front rotors, BMW 1 Series F20 F21 brake upgrade, xDrive compatible front discs, 340 mm slotted drilled grooved rotors, performance braking kit, fast road brake discs, track day brake discs, direct replacement front discs, bolt-on brake upgrade, OE-spec vented rotors, precision ground brake rotors, CNC machined brake discs, heat treated rotors, anti-fade braking, improved stopping power, reduced brake judder, warp resistant rotors.

Installation
Professional fitting available at MJ Modifications in Warwickshire. For a tailored install quote, email info@mjmodifications.co.uk. We have fitted these on customer cars and our experience has been excellent, with consistently positive feedback on pedal feel and durability.

Good to know
This upgrade is a direct replacement for the original 340 mm front setup on the BMW M135i and M140i, including all-wheel drive models. Designed to work seamlessly with the factory calipers while delivering a clear performance step for fast road and occasional circuit use.