Lynk & Co 03+ Big Brake Kit Upgrade / TTSPORT Classic 5440
Lynk & Co built the 03+ as its street-focused performance sedan — aero add-ons, carbon fiber trim, and a high-output 2.0T making 250 hp (187 kW / 254 PS). That kind of power deserves brakes that respond with the same urgency, so this 03+ owner swapped the factory setup for a TTSPORT Classic 5440 forged big brake kit, running it behind the car's stock 18-inch wheels.
The build pairs the TT5440 forged four-piston front caliper with a 343mm x 28mm high-carbon heat-treated drilled rotor and Goodridge stainless steel brake lines — a straightforward caliper-rotor-line package aimed at firmer pedal feel and less fade under repeated hard stops.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Lynk & Co 03+, 18-inch wheels |
| Front caliper | TTSPORT 5440 forged four-piston caliper |
| Front rotor | TT 343mm x 28mm high-carbon heat-treated drilled rotor |
| Brake lines | Goodridge stainless steel brake lines |
Here's the full official spec sheet for the TT5440 caliper used on this build:
| Brake Caliper | |
|---|---|
| Series | Classic Series |
| Model / Application | 5440 |
| Axle Position | Front |
| Piston Count | 4-piston |
| Piston Type | Star-profile racing pistons without dust boots |
| Piston Diameter | 38 mm × 2 / 41 mm × 2 |
| Caliper Dimensions | L 276 mm × W 138 mm × H 80 mm |
| Total Piston Area | 49.1 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 2.65 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø330–345 mm × 28 mm |
| Fitment & Installation | |
| Minimum Spoke Clearance (mm) | 86 |
| Caliper Mounting Type | Radial mount with vehicle-specific caliper brackets |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
The two-piece forged aluminum body keeps the caliper light while adding rigidity over a stock cast unit — less flex under hard braking means less pedal travel before the pads actually bite.
Why It Works
- Forged aluminum construction resists caliper flex, so pedal input translates more directly into clamping force instead of getting absorbed by a flexing body.
- The four star-profile pistons give a combined 49.1 cm² of piston area per caliper, spreading force more evenly across the pad and rotor.
- The 343mm high-carbon heat-treated drilled rotor increases heat dissipation by roughly 30% over the factory disc, per the source install, cutting the heat buildup that causes fade on repeated hard stops.
- Radial-mount brackets and a fitment window rated for 17-inch wheels and up let the kit tuck behind this car's 18-inch wheels with no spacers.
After the install, the owner reported quicker brake response and firm, confident pedal pressure — no more of the soft, hollow feel the stock brakes had under hard use.
Installation Gallery
FAQ
What wheels does this TTSPORT 5440 kit fit on the Lynk & Co 03+?
What's included in the TTSPORT 5440 kit used on this Lynk & Co 03+?
How is the TT5440 caliper built?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.