TTSPORT Evolution ES6 Front 6-Piston Big Brake Kit

The TTSPORT Evolution ES6 is a front big brake upgrade kit featuring a two-piece forged 6-piston caliper, a 32mm two-piece brake disc, and matched friction materials. The ES6 is designed to deliver a firmer pedal feel, stronger initial bite, and stable, reliable braking performance for both street and track use.

As a lightweight, street-oriented 6-piston front brake kit within the "Evolution" series, the ES6 offers compatibility with 18-inch wheels, a linear and refined pedal feel, and excellent daily durability. It represents a cost-effective solution that balances safety upgrades for family vehicles with the demands of light performance driving.

1. Caliper Technical Specifications

The ES6 utilizes a two-piece forged aluminum alloy opposed 6-piston caliper. Its asymmetrical body design balances lightweight construction with structural rigidity; the forging process optimizes alloy grain density, resulting in a superior stiffness-to-weight ratio compared to cast calipers. This minimizes deformation under high-pressure braking and provides more direct pedal feedback.

Piston Layout: Features a staggered piston diameter design. On each side, the three pistons measure 27mm, 32mm, and 38mm in diameter, totaling six opposed pistons; the total piston area per caliper is 50.2 cm². This staggered configuration balances pressure distribution across the entire brake pad surface, mitigates uneven (tapered) wear over time, and ensures linear, controllable braking force output.

Piston Structure: Employs a two-piece heat-insulating piston design, equipped as standard with dust boots and high-temperature oil seals. This construction reduces heat transfer to the brake fluid, preventing pedal feel degradation during continuous braking, while also protecting against dust and road salt corrosion during daily driving to extend maintenance intervals. Physical Specifications: Caliper dimensions are 294mm (L) × 155mm (W) × 84mm (H); net weight per caliper is 3.95kg (excluding brake pads). Features a high-temperature, glossy finish with excellent corrosion resistance.

Mounting Structure: Radial mount design paired with vehicle-specific, CNC-machined carbon steel brackets, engineered to fit the specific steering knuckle specifications of various vehicle models.

Color Options: Available in seven standard caliper colors—red, fluorescent green, orange, black, silver, yellow, and blue—with support for custom color options.

2. Brake Disc and Pad Configuration

Brake Disc Specifications

All models come standard with 32mm-thick, two-piece internally ventilated brake discs. Two diameter options are available, with material choices including heat-treated high-carbon cast iron and carbon-ceramic (CCB).

Series	Evolution Series
Model / Application	ES6
Axle Position	Front
Piston Count	6-piston
Piston Type	Two-piece heat-insulated pistons with dust boots
Piston Diameter	27 mm × 2 / 32 mm × 2 / 38 mm × 2
Caliper Dimensions	L 294 mm × W 155 mm × H 84 mm
Total Piston Area	50.2 cm² per caliper, all pistons combined
Manufacturing Process	Two-piece forged aluminum body
Net Weight	3.95 kg per caliper, without pads
Surface Finish	High-temperature gloss coating
Recommended Wheel Size	18 in or larger
Recommended Rotor Size	Ø355–380 mm × 32 mm
Brake Rotor Options
Rotor Option	Iron (Standard)	Carbon-Ceramic (Option B)
Rotor Material	Heat-treated high-carbon cast iron	Carbon-ceramic composite
Axle Position	Front	Front
Rotor Dimensions	Ø355 / 380 mm × 32 mm	Ø355 / 380 mm × 32 mm
Construction	Two-piece rotor assembly	Two-piece rotor assembly
Ventilation	Internally vented	Internally vented
Rotor Mounting	Fixed or floating, depending on rotor size & vehicle application	Floating
Directional Design	Yes — left/right specific	Yes — left/right specific
Rotor Face Pattern	Curved slot / Grain Slot / Wave Slot / Drilled and slotted	Cross-drilled
Brake Pad Options
Pad Option	For Iron Rotors	For CCB Rotors
Compatible Rotor Material	Iron / steel rotors only	Carbon-ceramic rotors only
Operating Temperature Range	0–600 °C	0–700 °C
Average Friction Coefficient	μ ≈ 0.38 (varies with temp, pressure, rotor condition)	μ ≈ 0.45 (varies with temp, pressure, rotor condition)
Lines
Brake Line Construction	Three-layer construction
Brake Line Material	PTFE inner liner / SUS304 stainless braid / PVC outer sheath
Brake Line Fittings	Vehicle-specific; caliper-side and chassis-side fittings vary by application
Brackets
Rotor Hat Manufacturing Process	CNC-machined
Rotor Hat Material	High-strength aluminum alloy
Caliper Bracket Manufacturing Process	CNC-machined
Caliper Bracket Material	Carbon steel
Caliper Mounting Type	Radial mount with vehicle-specific brackets
Fitment & Installation
Minimum Spoke Clearance	99 mm
Recommended Wheel Size	18 in or larger
Bedding-In	Required after installation

The discs feature CNC-machined, high-strength aluminum alloy hats designed to absorb thermal expansion and contraction, thereby minimizing disc deformation and reducing the risk of brake shudder.

Brake Pad Parameters

Specific brake pad compounds are matched to the corresponding disc types; official specifications are as follows:

Brake pads for steel discs: Operating temperature range of 0–600°C; average friction coefficient (μ) ≈ 0.38. Offers stable braking performance and minimizes excessive disc wear; suitable for daily driving and light spirited driving.

Brake pads for carbon-ceramic discs: Operating temperature range of 0–700°C; average friction coefficient (μ) ≈ 0.45. Formulated specifically for carbon-ceramic discs, delivering superior braking force and fade resistance at high temperatures.

Official Requirement: Brake pad and disc materials must be correctly matched; mixing materials is strictly prohibited.

3. Ancillary Components and Complete Kit

Core Ancillary Components

Braided stainless steel brake lines: Three-layer construction featuring an inner PTFE layer, a middle SUS304 stainless steel braided layer, and an outer PVC protective sheath. This design virtually eliminates hose expansion under high pressure, resulting in a firmer pedal feel and more direct braking force transmission. Fittings are vehicle-specific, designed to connect seamlessly to both the caliper and chassis interfaces. Installation Hardware: The caliper mounting brackets are CNC-machined from high-carbon steel, and the brake disc hats are made of high-strength aluminum alloy; both are custom-made based on specific vehicle model data. A complete set of installation fasteners is included as standard.

Standard Kit Contents

The complete vehicle-specific front-wheel kit includes:

2 x ES6 forged 6-piston front calipers (left and right specific)

2 x Two-piece brake discs (in the selected specification)

1 x Set of matching brake pads

2 x Sets of vehicle-specific radial-mount caliper brackets

2 x Aluminum alloy brake disc hats

2 x Stainless steel braided brake lines

Complete set of installation fasteners and brake pad bedding-in instructions

4. Fitment Requirements and Real-World Examples

Mandatory Installation Prerequisites

Wheel Size Requirement: Minimum 18-inch wheels required; 355mm discs are designed for 18-inch wheels, while 380mm discs require additional verification of internal wheel clearance.

Internal Wheel Clearance: A minimum clearance of 99mm is required between the inner wheel spokes and the caliper; wheel offset (ET value), spoke design, and barrel depth affect actual compatibility. We officially recommend verifying fitment using a dedicated clearance template before ordering.

Fitment Method: This is a platform-based custom kit that adapts to different vehicle models using specific brackets, hats, and brake line fittings. Complete vehicle details—including model year, trim level, and wheel specifications—must be provided when ordering to confirm compatibility.

Mandatory Bedding-In: A proper brake pad bedding-in procedure must be performed before aggressive driving to establish a uniform transfer layer of friction material on the disc surface; skipping this step can lead to issues such as brake judder, uneven braking force, and abnormal disc wear. 

Vehicle models with proven modification setups include:

MPVs: Toyota Alphard / Vellfire (AH30/AH40) – compatible with stock 18-inch wheels without spacers;

New Energy Vehicles (NEVs): ZEEKR 001, ZEEKR 009 – compatible with 19-inch wheels when paired with 380mm brake discs;

Mid-size sedans: Honda Accord, BMW 3 Series (G20/G28/G21) – compatible with select stock 18-inch wheels;

Other mid-size SUVs, sedans, and MPVs in the same class – fitment can be achieved via custom mounting brackets provided there is sufficient installation space.

The ES6 is one of TTSPORT’s most popular 6-piston calipers for street use, positioned as a "lightweight street performance upgrade." Compared to the EB6 model in the same series, it is more compact and has lower fitment requirements, fitting stock 18-inch wheels. It is particularly suitable for owners of heavier family MPVs, mid-size sedans, and SUVs seeking a safety-oriented braking upgrade, while also capable of handling light, spirited driving during entry-level track days.

5. ES6 FAQs

What wheel size is required to install ES6 calipers?

The ES6 caliper requires a minimum wheel size of 18 inches and a clearance of at least 99 mm between the inner wheel spokes and the caliper. Wheel offset, spoke design, and brake disc diameter all affect fitment; therefore, before ordering, please verify that there is sufficient clearance based on the caliper's dimensions (Length 294 × Width 155 × Height 84 mm).

The ES6 is a large-format brake kit tailored to specific vehicle platforms. The caliper brackets and brake line fittings are customized for your specific vehicle; please confirm your vehicle's year, make, model, trim level, and wheel specifications with our team before purchasing.

Should I choose 355mm or 380mm brake discs?

If your driving consists primarily of daily commuting or spirited street driving—and you are constrained by wheel clearance or have specific requirements regarding unsprung mass—the 355mm brake disc is recommended. However, if you engage in track driving, operate a heavy vehicle, or frequently perform high-speed braking maneuvers, and require maximum thermal capacity, the 380mm disc is the better choice.

What is the difference between steel brake discs and carbon-ceramic (CCB) options?

High-carbon cast iron discs paired with brake pads featuring an operating temperature range of 0–600°C and an average friction coefficient (μ) of 0.38 offer excellent cost-effectiveness for both street and track use. In contrast, the carbon-ceramic (CCB) option utilizes specialized pads (operating range 0–700°C; average friction coefficient 0.45); these systems offer reduced unsprung mass and superior resistance to thermal fade, making them ideal for high-intensity track driving.

Is a bed-in procedure required?

Yes. Proper bedding-in is essential to ensure the uniform transfer of brake pad material onto the disc surface, stabilize the friction layer, and fully realize the pads' braking power and linear pedal feel. Skipping this step can result in uneven friction material deposits, vibrations, and compromised brake pedal feedback.