Big Brake Kit Upgrade / TTSPORT Classic 5440
A soft, long-travel brake pedal isn't just an annoyance — it's the gap between stopping in time and not. That's the practical case for a proper big brake kit, and it's the reason a caliper like the TTSPORT Classic 5440 exists: a forged four-piston front caliper meant to replace the single- or dual-piston sliding calipers that most factory cars ship with.
The Classic 5440 is a two-piece forged-aluminum caliper aimed at drivers who want more clamping force and a firmer pedal than a stock sliding caliper can deliver, without tearing apart the rest of the front end to get there.
The Real Cost of a Soft Pedal
Hard, sustained braking is where factory brake systems show their limits: the caliper body flexes under load, pad contact area is modest, and pedal travel gets longer right when you need it shortest. None of that shows up on a normal commute — it shows up the one time you actually need everything the brakes have. A stiffer caliper body with more piston area changes that equation before ABS even has to intervene.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle fitment | Vehicles running 17-inch or larger wheels; vehicle-specific caliper bracket required |
| Front caliper | TTSPORT Classic 5440, forged two-piece aluminum, 4-piston |
| Front rotor | Recommended Ø330–345 mm x 28 mm (kit-compatible range) |
| Bracket | Vehicle-specific radial-mount caliper bracket |
| Hardware | Mounting hardware, high-temperature gloss coating, vehicle-specific brake line fittings |
For reference, here's the full TTSPORT spec sheet for the Classic 5440 caliper used in this kit:
| 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 the Classic 5440 Works
- Two-piece forged aluminum construction resists the flex that softens pedal feel in a stamped or single-piece factory caliper.
- Four pistons (38 mm x2 / 41 mm x2) spread 49.1 cm² of total piston area across the pad, so clamping force lands more evenly than a smaller sliding caliper can manage.
- Designed around an 86 mm minimum spoke clearance, so it's built to sit behind 17-inch and larger factory wheels without needing spacers.
- At 2.65 kg per caliper without pads, the 5440 keeps unsprung weight reasonable for a caliper of this size and piston count.
FAQ
What wheel size does the TTSPORT Classic 5440 kit require?
Does the Classic 5440 come as a rear caliper too?
What rotor size does the 5440 caliper pair with?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.