Changan CS75 Big Brake Kit Upgrade / TTSPORT Slim SL6
Most owners looking to upgrade their brakes run into the same wall: a real high-performance caliper is often too wide or too deep for the factory wheel, forcing a flange spacer or a wheel swap just to make it clear. On this Changan CS75, the goal was a stronger, more linear pedal without touching the factory 19-inch wheels — and that's exactly what the TTSPORT Slim SL6 six-piston kit was built to do.
TTSPORT developed the SL6 specifically for cars that need to keep their stock wheels. It's a compact, forged six-piston caliper sized to clear the spokes on more than 90% of factory 17-inch-and-up wheels — no flange, no wheel change, and no cutting corners on braking hardware to get there.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Changan CS75, 19-inch factory wheels |
| Front caliper | TTSPORT Slim SL6 forged six-piston caliper |
| Front rotor | TTSPORT 355mm high-carbon brake rotor |
| Bracket | Custom vehicle-specific caliper bracket |
| Pads / lines | TTSPORT performance brake pads, stainless steel brake lines |
| Hardware | Brake fluid, mounting bolts, fixing hardware |
The kit ships as a complete front-axle package: the SL6 caliper, a 355mm high-carbon rotor, a vehicle-specific bracket machined to CS75 hub and knuckle dimensions, performance pads, stainless lines, and the fluid and hardware needed to finish the install without sourcing extra parts.
Here's the full spec sheet for the SL6 caliper used in this build.
| 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
- Two-piece forged aluminum body plus internal reinforcing ribs cut caliper flex, so pedal input translates into clamping force instead of getting absorbed by a flexing body.
- The staged six-piston layout (28mm/30mm/36mm) gives a progressive bite — soft and linear at the top of the pedal, firm and strong once you're into the stop.
- One-piece pistons with high-temperature seals hold up to heat cycling better than a hollow piston, keeping seal integrity and pedal feel more consistent as the brakes warm up.
- At 350mm x 135mm x 120mm, the caliper's footprint is sized around common 17-18-inch spoke geometry, which is why it clears the CS75's factory 19-inch wheel without a flange or spacer.
Installation Gallery
FAQ
Does the TTSPORT SL6 kit need a flange adapter or larger wheels on the Changan CS75?
What front rotor size does this Changan CS75 kit use?
What wheel sizes is the TTSPORT SL6 caliper designed to clear?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.