Lynk & Co 03 Big Brake Kit Upgrade / TTSPORT Slim SL6
The Lynk & Co 03 has built a loyal following since 2018 on sharp styling, sorted handling, and genuine motorsport DNA — which is exactly why its factory brakes tend to show their limits first. As owners push the powertrain and chassis harder, the stock setup responds with vague pedal feel and noticeable fade under repeated hard stops, whether that's a spirited backroad run or just aggressive daily driving. This case documents a straightforward fix: a TTSPORT Slim SL6 front big brake kit installed without touching the factory wheels.
The owner's goal was simple: stronger, more consistent braking without giving up the factory 18-inch wheels or adding spacers to make room. That ruled out most oversized six-piston kits, which typically need a flange adapter to clear the spokes — extra cost, extra install complexity, and a wheel offset change nobody asked for.
Vehicle & Kit Specs
Here's the hardware breakdown for this front-axle upgrade on the Lynk & Co 03.
| Item | Specification |
|---|---|
| Vehicle | Lynk & Co 03, factory 18-inch wheels |
| Front caliper | TTSPORT SL6 forged six-piston caliper (Slim Series) |
| Front rotor | TTSPORT 355mm high-carbon steel rotor |
| Bracket | Vehicle-specific caliper bracket, custom-fit to the 03's hub |
| Pads / lines | TTSPORT high-performance brake pads, stainless steel brake lines |
| Hardware | Brake fluid, mounting bolts, and fasteners |
The SL6 caliper installed here carries its own published spec sheet, reproduced below.
| Brake Caliper | |
|---|---|
| Series | Slim Series |
| Model / Application | SL6 |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | One-piece heat-insulated pistons |
| Piston Diameter | 28 mm × 2 / 30 mm × 2 / 36 mm × 2 |
| Caliper Dimensions | L 350 mm × W 135 mm × H 120 mm |
| Total Piston Area | 46.8 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 3.60 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø330–355 mm × 28 mm |
| Fitment & Installation | |
| Minimum Spoke Clearance (mm) | 82 |
| 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 SL6 is a two-piece forged caliper, and forged aluminum flexes far less under clamping load than the cast-iron single-piston sliders most factory setups use. Less caliper flex means the pedal transmits force more directly to the pads instead of getting absorbed by a caliper body that's twisting under pressure — that's the "clearer pedal feel" owners notice right away.
- Progressive six-piston layout (28mm/30mm/36mm pairs) gives a linear initial bite that firms up under harder braking, rather than an on/off grab.
- The 355mm rotor adds thermal mass over the factory disc, which helps the system absorb heat over repeated stops before fade sets in.
- The caliper's 350 × 135 × 120mm footprint and 82mm minimum spoke clearance were engineered around common 17-18 inch OEM wheel geometry, so no flange adapter or spacer is needed on this fitment.
Installation Gallery
Does the TTSPORT SL6 kit fit the Lynk & Co 03's factory wheels?
What's included in the SL6 big brake kit?
Can the SL6 be run with aftermarket wheels instead of the factory set?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.