2014-2021 BMW M240i / M235i (F22/F23) Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2014-2021 BMW M240i / M235i (F22/F23) Carbon Ceramic Brake Kit — OEM-Size Replacement
F22/F23 M235i and M240i owners usually shop this kit after repeated iron-rotor heat checking, pad fade, and brake dust from track days or aggressive street use. This StopFlex OEM-size replacement package keeps the BMW brake architecture and matches the listed 340mm or 370mm front setup with the 345mm rear reference, while carbon-ceramic rotors reduce rotating mass, brake dust, and heat-related fade. The kit includes carbon-ceramic rotors, matched pads, hats, and floating hardware for the exact trims and rotor sizes listed on this page.
- Built for 2014-2016 M235i and 2017-2021 M240i F22/F23 applications using the listed 340mm or 370mm front rotor reference and 345mm rear rotor reference.
- OEM-size replacement design keeps the factory caliper position instead of converting the car to an oversized big-brake layout.
- Carbon-ceramic discs cut the iron-rotor dust that coats open 2 Series wheels and reduce rotating unsprung mass at each corner.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | BMW M240i / M235i (F22/F23) |
| Model years | 2014-2021 |
| Front rotor reference | M240i/M235i: 340mm, 370mm |
| Rear rotor reference | M240i/M235i: 345mm |
| Page type | OEM-size carbon ceramic replacement |
| Minimum wheel size | 15" (for the 240 mm rotor) |
For OEM replacement orders, StopFlex builds around the factory rotor specification shown for this vehicle. Front floating-caliper setups require manual review before production. If the car uses aftermarket calipers such as Brembo, AP Racing, Alcon, or Wilwood, the order can still be built, but the exact caliper model, pad shape, and rotor dimensions must be confirmed before production.
This setup uses a 240 mm rotor, so the minimum wheel size is 15". Wheels under 15" will not clear the caliper and rotor, and spoke profile and offset affect clearance too — confirm your exact wheels before ordering.
Why StopFlex CCB
Lower Unsprung Mass
StopFlex carbon-ceramic rotors are engineered to reduce rotor mass versus comparable iron discs, helping the suspension react cleaner and the steering feel more precise.
High-Temperature Stability
The carbon-silicon-carbide matrix is built for stable braking behavior at temperatures that can push iron rotors into heavy fade.
Rust-Free Rotor Surface
Carbon ceramic does not form orange flash rust after rain, washing, or storage, keeping the visible rotor face cleaner behind open wheels.
Long Street-Service Potential
In normal road use with matched pads and proper bedding, StopFlex CCB rotors are designed for far longer service life than typical iron replacement rotors.
Low Visible Dust
When paired with matched StopFlex pads, the system produces very low visible brake dust compared with conventional iron rotor and pad combinations.
Premium Ceramic-Glaze Appearance
StopFlex's proprietary coating creates a bright, high-end ceramic-glaze finish with subtle glaze texture and a more premium visual character behind open wheels.
Street-Usable Cold Bite
Street Spec and Track-Day Spec rotors are designed for normal first-stop road use, including cold-weather operation. Motorsport Spec is the competition-focused exception.
Continuous Fiber Reinforcement
Long-fiber carbon ceramic construction improves structural strength and thermal durability versus chopped-fiber approaches.
Custom Rotor Hat Color
Every StopFlex OEM replacement order can be built with a custom rotor hat color, giving the carbon ceramic rotor package a cleaner match with the wheel, body color, and overall build style.
Heat Management Note
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat can still soak into pads, fluid, seals, calipers, wheels, and nearby components. For long track sessions, mountain descents, or sustained aggressive driving, brake cooling and high-temperature fluid are still recommended.
Street / Track-Day / Motorsport Rotor Options
Street Spec
Ceramic coating, cross-drilled face, and large cooling channels.
Best for daily driving and premium street builds that need clean cold bite, low dust, corrosion-free appearance, and long service life.
Track-Day Spec
Ceramic coating, blank face, and honeycomb cooling channels.
Best for fast-road and track-day use where repeated braking stability matters more than maximum visual drilling style.
Motorsport Spec
Uncoated blank face with honeycomb cooling channels.
Best for race-focused builds that run competition pads, high-temperature fluid, cooling strategy, and a proper warm-up window. Not the default street choice.
Package Scope
| Item | Details |
|---|---|
| CCB rotors | Full-car set by default |
| CCB brake pads | Matched for StopFlex carbon ceramic rotors |
| 7075 aluminum floating rotor hats | Vehicle-specific fitment |
| Stainless floating hardware | Full-car hardware set |
| Rotor hat color | Custom rotor hat colors are available for every OEM replacement order. |
| Order scope | Default listing is full-car set. Front-only or rear-only orders can be arranged after confirmation. |
FAQ
Will this fit every F22/F23 M235i or M240i?
No. Fitment is limited to the exact M235i/M240i trims and rotor sizes listed for this page. Confirm your front rotor diameter is 340mm or 370mm as specified, and confirm the 345mm rear reference before ordering.
Does this kit keep the parking brake function?
Yes, when ordered for the correct F22/F23 rear brake configuration, the replacement hat design is intended to retain the factory parking brake layout. The F22/F23 M235i/M240i platform uses a mechanical parking brake arrangement rather than a rear caliper-integrated EPB.
Why switch from the factory iron brakes on an M235i or M240i?
The factory iron system can work well on the street, but repeated high-speed stops add heat, dust, and rotor wear. Carbon-ceramic rotors are chosen to reduce brake dust, improve fade resistance, and lower rotating mass while keeping the OEM rotor sizing for this chassis.
What should I verify before ordering?
Verify model year, coupe or convertible body, exact trim, current front rotor diameter, rear rotor size, caliper type, and wheel clearance. Do not order by model name alone because F22/F23 brake packages can vary by build and prior retrofit.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
We’re here to help! Whether you need expert advice on brake setups, have questions about your order, or just want to share feedback, our team is ready to assist you. Reach out via your preferred channel below, or use the inquiry form.
Get in Touch
Business Hours
Monday – Saturday, 9:30 AM – 6:30 PM (GMT +8)
Current Time:
Follow Us
- Choosing a selection results in a full page refresh.