The build: parts and fitment
| Component | Specification | Notes |
|---|---|---|
| Vehicle | Li Auto Mega | Front-axle custom big brake application |
| Front calipers | Brembo GTS6 | 6-piston fixed caliper |
| Front rotors | STOPFLEX C/SiC 380 x 34 mm | Carbon ceramic, long-fiber construction |
| Pads | STOPFLEX silent ceramic compound | Set up for quiet, low-dust street use |
| Wheel reference | Factory 18-inch wheels | Confirm against your exact wheel and bracket setup |
| Axle scope | Front big brake kit | Calipers, rotors, pads, and brackets as one system |
Read this before you order
This is a complete custom front big brake kit built around the Brembo GTS6 caliper, dedicated brackets, and the matching STOPFLEX 380 mm carbon ceramic rotor. It is not a rotor-only replacement for the standard Li Auto Mega floating front calipers, and clearance is engineered around the factory 18-inch wheel barrel.
Why CCB makes sense on a 2.7-ton EV
| STOPFLEX feature | Why it matters on the Mega | What you notice |
|---|---|---|
| 380 x 34 mm carbon ceramic rotor | You're slowing a 2,785 kg van that carries people and luggage. Heat builds fast on a long descent or a string of hard stops, and iron rotors fade as they soak it up. | Pedal feel that stays consistent stop after stop instead of going long and soft when the brakes get hot. |
| Roughly half the weight of steel | The Mega is tuned for ride comfort. Heavy iron rotors add unsprung mass at each front corner, which the suspension has to fight over bumps. | Cleaner suspension response over sharp impacts and broken pavement. |
| Rust-free rotor face | Regen does most of the slowing on an EV, so the friction brakes sit unused. Iron rotors flash-rust after rain or an overnight park. | No gritty, scraping first stop in the morning and no rusty rotor faces behind the wheels. |
| STOPFLEX silent ceramic pads | You bought the Mega for how quiet and clean it is. Wheel dust and brake squeal undercut that. | Very low brake dust on the wheels and refined, quiet daily braking. |
| Brembo GTS6 6-piston caliper | A bigger, stiffer rotor needs even, rigid clamping to actually use its thermal headroom. | Firmer initial bite and a more linear, planted pedal under heavy braking. |
What gets better
- Stronger heat tolerance when the van is loaded or slowing repeatedly
- Lighter front corners for cleaner ride and suspension response
- Rotors that don't rust after rain or sitting overnight
- Very low brake dust and quiet daily manners with STOPFLEX pads
- Long street life, roughly 250,000 to 300,000 km off-track
What to confirm first
- Your exact Li Auto Mega configuration
- The actual wheel barrel and bracket combo against the 18-inch reference
- That you want the full front kit, not a rotor-only swap
- This is a front-axle package, so plan rear maintenance separately
If you're not sure your van matches the spec shown here, send us your details and we'll confirm Li Auto Mega fitment before you order through our Li Auto CCB collection.
Build gallery
Li Auto Mega brake FAQ
The Mega is a family MPV, not a sports car. Do I really need this?
For a vehicle over 2.7 tons, this is about reserve capacity, not lap times. A larger carbon ceramic front system holds up far better than a typical iron setup when you're slowing a fully loaded van repeatedly, dropping down a long grade, or making an emergency stop with the family aboard.
Does this change the Mega's regenerative braking?
No. The kit swaps the physical friction hardware on the front axle and leaves the car's regen strategy alone. Regen still handles most routine slowing in daily driving; the upgraded friction brakes step in when you need real mechanical stopping force.
I bought the Mega for how quiet it is. Will these be noisy?
This package is tuned for refined daily use, not track manners. With STOPFLEX pads, brake dust stays very low, and because the rotors don't rust, you skip the gritty first-stop sound iron EV brakes often make after rain or sitting overnight.
Will this clear the factory 18-inch wheels?
This 380mm rotor and Brembo GTS6 front package is built as a custom application engineered to clear the factory 18-inch wheel barrel. Since the wheel and brake hardware work as one system, confirm fitment against your exact wheel and bracket setup before ordering.
Can I run these rotors on the factory calipers?
No. This is a complete custom big brake kit built around Brembo GTS6 fixed calipers, dedicated brackets, and the matching STOPFLEX 380mm carbon ceramic rotors. It isn't a rotor-only swap for the standard Li Auto Mega floating front calipers.
How long do these rotors last?
In normal street use, STOPFLEX carbon ceramic rotors can last about 250,000 to 300,000 km when they're kept off the track. On a regen-heavy EV like the Mega, friction wear is often even lower day to day, and the rotors stay rust-free.
