BMW F20 F21 F22 F23 1 Series/2 Series Rear 345mm VBT J-Hook Grooved Slotted Brake Discs/Rotors (Pair) – Fits M140i M135i M240i M235i with M Sport Brakes – High Carbon Performance OE Replacement F2x

Upgrade your back-axle stopping power with these 345 mm J-slot grooved rear rotors for the BMW F2x platform. Precision CNC machined with hooked grooves, high carbon metallurgy and a direct bolt-on fit, this performance rear disc set delivers sharper bite, improved pedal feel and consistent braking in wet or spirited driving. Ideal as an OE replacement for worn factory rotors while offering the benefits of a performance grooved surface for gas, dust and water clearance.

• High carbon cast iron for stability, durability and heat management
• J-slot hooked grooves refresh the pad face and help reduce glazing
• Balanced, single-piece construction for smooth, reliable braking
• Direct fit on the rear axle with factory calipers and standard pad shapes
• Supplied as a matched pair for even performance side to side
• Designed for fast road use with confident, repeatable stopping

We run these on our own cars and customer builds, and the feedback is exactly what you want from a grooved rotor upgrade: stronger initial bite, confidence in poor weather and rock-solid consistency on a back road. VBT quality, tried and trusted by our community.

Compatibility

Fits BMW F2x models with the M Sport braking system and 345 mm rear setup, including:

• BMW 1 Series F20 F21: M140i, M135i with M Sport brakes
• BMW 2 Series F22 F23: M240i, M235i with M Sport brakes

If you are unsure whether your car has the 345 mm rear rotor arrangement, contact us and we will be happy to help confirm fitment.

What you receive

• 2 x rear grooved brake rotors, 345 mm diameter, single-piece construction

Why choose these rotors

• OEM replacement fitment with performance-focused machining
• Enhanced friction characteristics from J-hook slotting
• High-carbon spec for reduced risk of judder and better thermal control
• Excellent match for standard pads or most fast-road pad upgrades

Fitting service

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

Search-friendly terms

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