Mercedes-Benz GLC (C260) Big Brake Kit Upgrade / TTSPORT Racing AP85
Mercedes-Benz has had its share of headlines over the years, but the three-pointed star still carries real weight with buyers, and the GLC-Class earns that trust honestly — roomy cabin, balanced power delivery, and enough athleticism to feel like more than a grocery-getter. For a vehicle that's hauling a family every day, though, the brakes aren't the place to cut corners. This GLC C260 owner sent all four corners in for a full upgrade, chasing real stopping power and safety margin rather than just looks.
The build: up front, a TT 410x34mm two-piece slotted rotor behind an AP8520 six-piston fixed caliper, mounted on a TTSPORT custom bracket. Out back, a TT 380x28mm two-piece slotted rotor with an AP8540 four-piston caliper, the AP electronic parking brake components to keep the factory EPB working, and a matching custom bracket. Both calipers were finished in the same color as the car's body, so the kit reads as factory-plus rather than an aftermarket add-on under the 21-inch wheels.
TTSPORT's two-piece slotted rotors vent gas and dust off the swept surface as the pads bed in, which keeps the rotor face cleaner and pad contact more consistent over time — less brake dust baked onto the wheel, less maintenance headache. The bracket that carries each caliper is machined specifically for this axle and painted to order, which is how the owner matched both front and rear calipers to the GLC's factory body color instead of settling for a stock red or yellow.
Vehicle & Kit Specs
Here's the hardware breakdown for this GLC C260 four-corner upgrade:
| Item | Specification |
|---|---|
| Vehicle | Mercedes-Benz GLC C260, 21-inch OEM wheels |
| Front caliper | AP8520 six-piston fixed caliper, color-matched to body |
| Front rotor | TTSPORT 410x34mm two-piece slotted rotor |
| Rear caliper | AP8540 four-piston fixed caliper, color-matched to body |
| Rear rotor | TTSPORT 380x28mm two-piece slotted rotor |
| Bracket | TTSPORT custom-machined front and rear brackets, painted to order |
| Hardware | Mounting hardware, AP electronic parking brake actuator (rear) |
Why It Works
- A fixed caliper doesn't flex the way a sliding OEM caliper does under hard braking, so pedal travel stays shorter and more consistent — the pad clamps the rotor evenly instead of drifting on its slide pins.
- The 410mm front rotor adds surface area and mass over stock, which means more thermal capacity before the system starts to fade on repeated stops.
- Slotted rotor faces keep gas and dust from building up between pad and rotor, helping maintain consistent bite lap after lap or stop after stop.
- The vehicle-specific bracket geometry lets the whole kit tuck behind the GLC's factory 21-inch wheels without spacers, and the rear setup retains the AP electronic parking brake so the factory EPB button still works.
Installation Gallery
Frequently Asked Questions
What size wheels does this GLC C260 big brake kit fit?
Does the rear kit still work with the electronic parking brake?
What's included in the front and rear brake kits?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.