Lynk & Co 03 Big Brake Kit Upgrade / TTSPORT Classic 5440
Lynk & Co built its reputation on styling and road manners, but the stock front brakes on the 03 leave the pedal feeling soft and the stopping power a little short once you start driving the car the way its looks suggest. This case walks through a straightforward fix: a TTSPORT Classic 5440 four-piston big brake kit, running behind the car's stock 17-inch wheels with no spacers required.
The owner's project called for a forged-aluminum four-piston caliper and a matching high-carbon rotor upgrade — enough to firm up pedal feel and cut heat fade without crowding the factory 17-inch wheel.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Lynk & Co 03, 17-inch factory wheels |
| Front caliper | TTSPORT 5440 forged four-piston caliper |
| Front rotor | TTSPORT 330x28mm high-carbon heat-treated curved-vane rotor |
| Lines | TTSPORT stainless steel brake lines |
The table below is TTSPORT's official spec sheet for the 5440 caliper used in 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 |
Why It Works
The 5440 is a two-piece forged-aluminum caliper, which is stiffer under load than the single-piston sliding caliper it replaces — less flex at the caliper body means the pedal transmits pressure more directly instead of getting absorbed by the hardware.
- Four-piston forged clamping replaces the factory single-piston setup for a firmer, more direct pedal.
- The 330x28mm high-carbon heat-treated curved-vane rotor adds roughly 30% more heat dissipation than the stock rotor, which means less fade on repeated hard stops.
- The kit tucks in behind the car's stock 17-inch wheels with no spacers needed.
Installation Gallery
What wheel size does this TTSPORT kit fit on a Lynk & Co 03?
What does the TTSPORT kit installed on this Lynk & Co 03 include?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.