Tarox Rear Brake Discs/Rotors 345mm - BMW M135i M140i F20 F21 1 Series - Vented Slotted/Grooved & Drilled (G88, F2000, Sport Japan) - Performance OE Replacement Rear Brake Upgrade - Fast Road/Track Day

Upgrade rear stopping power on your BMW 1 Series performance model

Give your BMW M135i or M140i the rear brake performance it deserves with these premium Tarox rear rotors. Designed as a direct replacement for the factory rear setup, they retain OE fit while delivering sharper bite, cooler running and consistent braking on fast road and track.

Rear axle fitment for BMW M135i and M140i with the 345 mm rear system. Vented construction for superior heat control.

Why enthusiasts choose Tarox

• Vented 345 mm rear rotors that control heat and resist fade under repeated heavy use.
• Heat treated after each machining stage for strength and durability.
• Precision ground by hand to an ultra-flat finish with near-zero runout for smooth, confidence-inspiring pedal feel.
• Based on OE-spec, TUV approved castings for reliability and perfect fit.

Choose your performance surface

• G88 multi-groove - multiple radial grooves generate a turbine effect that helps evacuate heat and gases, keeping the rotor cooler and reducing the chance of vibration or cracking.
• F2000 curved groove - swept curved channels deglaze pads, balance cooling with strength and are ideal for fast road use and serious track sessions.
• Sport Japan drilled and grooved - fully drilled, countersunk holes for excellent gas venting to combat fade, with additional grooves to keep pads fresh.

Real-world results

We have run these on our own cars and customer builds. Feedback is consistently positive, with improved bite, better temperature control and stable performance lap after lap. Pair with Tarox pads for optimum results.

Fitment and compatibility

• Rear axle - BMW M135i and BMW M140i 1 Series.
• Size - 345 mm vented.
• Direct replacement for the factory rear discs using the original calipers.

Installation service

Professional fitting available at MJ Modifications, Warwickshire. Request a quote: info@mjmodifications.co.uk.

Why this is a smart upgrade

• Confidence on B-roads and track days with reduced fade.
• Consistent pedal response thanks to the ultra-flat braking surface.
• Robust, heat-treated construction for long-term reliability.

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