MG 6 Big Brake Kit Upgrade / TTSPORT Classic 5440
The MG 6 sells itself on sporty numbers — quick to 60, a claimed 36-meter stopping distance, standard XDS cornering control. But the factory brakes on a car built to feel this quick can still go soft after repeated hard stops, and pedal feel is the first thing to give up. This MG 6 owner swapped the stock front setup for a TTSPORT Classic 5440 forged four-piston big brake kit, keeping the factory 17-inch wheels in play.
TT5440 is one of TTSPORT's most widely fitted calipers, covering a broad range of compact-to-mid-size platforms. It's a two-piece forged aluminum body — not cast — which keeps caliper flex down under hard braking while keeping the price approachable for a daily-driven sport sedan like the MG 6.
Vehicle & Kit Specs
The build kept things straightforward: one forged caliper, one rotor upgrade, stainless lines, and a bracket cut to match the MG 6's factory hub.
| Item | Specification |
|---|---|
| Vehicle | MG 6, 17-inch factory wheels |
| Front caliper | TTSPORT Classic 5440 forged four-piston caliper |
| Front rotor | TTSPORT 330 x 28mm high-carbon, heat-treated, slotted rotor with protective surface coating |
| Bracket | Vehicle-specific caliper bracket, matched to the MG 6's factory hub mounting points |
| Lines | TTSPORT stainless steel brake lines |
Here's the official spec sheet for the TT5440 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
A forged, two-piece aluminum caliper body resists flex under load better than the factory single-piston or two-piston sliding caliper it replaces — less flex means less pedal travel lost to caliper deformation and a firmer pedal at the top of the stroke. The 330 x 28mm rotor adds thermal mass over the stock disc, so heat from repeated hard stops has more material to soak into before pad performance starts to fade.
- Four-piston forged caliper improves clamping consistency over the stock unit
- 330 x 28mm slotted rotor adds heat capacity for repeated hard braking
- Custom bracket matched the MG 6's factory hub, so the kit clears the stock 17-inch wheel without spacers
Installation Gallery
FAQ
What wheel size does the TTSPORT 5440 kit fit on the MG 6?
What's included in this MG 6 big brake kit?
Does this upgrade require wheel spacers?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.