Ford Bronco (U725) Big Brake Kit Upgrade / TTSPORT Direct-Mount PB6
SEMA is the biggest aftermarket stage in the industry, and this year TTSPORT used it to introduce a brake package built specifically for one of the most popular trucks on American roads: the Ford Bronco. The headline reveal was the PB6, a direct-mount six-piston caliper engineered around the Bronco's factory geometry — no adapter brackets, no spacers, just a bolt-on upgrade over the stock setup.
TTSPORT set up in the Racing & Performance hall as the only Chinese brake brand running an independent booth there — a notable spot for a brand built on forged calipers and carbon-ceramic rotors rather than marketing alone.
Over the course of the show, the team walked attendees through caliper construction, rotor material choices, and fitment logic — and used the conversations to collect real feedback on what US builders actually need from a big brake kit.
Ford Bronco (U725) Big Brake Kit Specs
The PB6-BRONCO pairs a six-piston forged caliper with a 340mm rotor, sized specifically for the Bronco and Bronco Raptor's OEM wheel packages.
Built as a two-piece forged aluminum body, the PB6 is a purpose-fit part for the U725 platform rather than a generic caliper adapted with a bracket kit.
| Item | Specification |
|---|---|
| Vehicle | 2021-2026 Ford Bronco (U725) / 2022-2026 Ford Bronco Raptor (U725), 17-inch wheels or larger |
| Front caliper | TTSPORT PB6 direct-mount six-piston forged caliper |
| Front rotor | Recommended Ø340mm x 34mm rotor |
| Mounting | Direct mount — no adapter bracket required |
| Hardware | Vehicle-specific brake line fittings (caliper-side and chassis-side vary by application) |
Below is the full official spec sheet for the PB6 as listed by TTSPORT.
| Brake Caliper | |
|---|---|
| Series | Direct-Mount Series |
| Model / Application | PB6 |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | Racing pistons without dust boots |
| Piston Diameter | 28 mm × 2 / 34 mm × 2 / 40 mm × 2 |
| Caliper Dimensions | L 280 mm × W 169 mm × H 79 mm |
| Total Piston Area | 55.6 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 3.44 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø340 mm × 34 mm |
| Fitment & Installation | |
| Vehicle Application / Trim Exclusions | 2021-2026 Ford Bronco (U725) 2022-2026 Ford Bronco Raptor (U725) |
| Minimum Spoke Clearance (mm) | 97 |
| Caliper Mounting Type | Direct mount |
| 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 flex under hard braking better than a cast caliper, which keeps pedal feel firm and consistent instead of going soft under load.
- Six pistons across three diameters (28/34/40mm) spread clamping force more evenly over the pad surface than a smaller two- or four-piston caliper, improving modulation.
- Because the PB6 is engineered around the Bronco's own hub and knuckle geometry, it clears 17-inch and larger wheels at 97mm minimum spoke clearance — no spacer needed to make it fit.
- The recommended 340mm rotor adds swept-area and thermal mass over the stock disc, which matters directly for a truck used off-road or loaded with gear, where sustained braking generates more heat.
TTSPORT's Full Lineup on Display
The Bronco caliper wasn't the only thing on the stand. TTSPORT also showed the rest of its performance range, aimed at different use cases from street driving to competition.
The Evolution Series pairs forged calipers with high-performance steel or carbon-ceramic rotors, built for 18-inch to 22-inch and larger wheel fitments across daily and track use.
For rally and off-road competition, TTSPORT showed a liquid-cooled racing caliper designed to resist the performance fade that comes with sustained high-temperature braking.
A dual-circuit, four-pad drift caliper was also on display — its piston circuits can be split so four pistons run the handbrake and two run the footbrake, or reversed, giving drift drivers separate control over each function.
Case Gallery: TTSPORT at SEMA
Does the TTSPORT PB6 fit the Ford Bronco without wheel spacers?
How many pistons does the TTSPORT PB6 caliper use?
What rotor size does TTSPORT recommend for the Bronco PB6 kit?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.