Honda Fit/Jazz (GK5) Big Brake Kit Upgrade / TTSPORT Classic 5440
Honda Fit (GK5) cars filled the grid at the 2019 Cuixi Cup trackday carnival at Zhuhai's Haiquanwan circuit, and most of them still had the drum brakes and small factory calipers they were born with. TTSPORT set up a booth at the event alongside its Zhongshan-area dealer to show what a proper brake upgrade looks like for cars like these — a forged front big brake kit and a rear drum-to-disc conversion built specifically for the Fit platform.
With GK5 Fits making up a large share of the field, TTSPORT brought its Classic Series 5440 front caliper and the Fit-specific rear drum-to-disc kit out for racers to see and handle in person, not just read about on a spec sheet.
The 5440 is a standalone-look forged caliper with its own visual identity rather than a copy of an OEM part, which is one reason it's become one of TTSPORT's more recognizable Classic Series calipers among Fit and compact-car owners.
Vehicle & Kit Specs
The pairing shown at the booth was built around the Fit's stock 17-inch-and-up wheel fitment: a forged four-piston Classic 5440 caliper up front and a rear disc conversion sized to the car's original hardware.
| Item | Specification |
|---|---|
| Vehicle | Honda Fit (GK5), track-day build, 17-inch wheels or larger |
| Front caliper | TTSPORT Classic Series 5440, forged four-piston, stainless racing pistons |
| Front rotor | Recommended 330–345 mm x 28 mm, per TT5440 spec sheet |
| Rear kit | TTSPORT Honda Fit drum-to-disc conversion, dimensions matched to OEM |
| Hardware | Vehicle-specific brackets and mounting hardware included |
The full spec sheet for the front caliper shown at the booth is below.
| 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 two-piece forged aluminum body resists the flex that a stock cast caliper allows under hard, repeated braking, which is a big part of why pedal feel firms up.
- Four stainless racing pistons spread clamping force more evenly across the pad than a stock single- or dual-piston caliper, which helps braking stay consistent lap after lap.
- The kit is sized around a 17-inch-and-up wheel, so it's built to clear the Fit's stock wheel fitment without spacers.
- Because the rear conversion kit is dimensioned to match OEM specs, it's meant to pair with the factory parking brake and mounting hardware rather than require a separate rear system.
Installation Gallery
FAQ
What wheel size does the TTSPORT Classic 5440 kit require?
Does TTSPORT's Honda Fit rear kit work with the stock parking brake and hardware?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.