Complete TTSPORT DRT4+2 rear wheel drift brake kit, showing the 6-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.
Close-up of a chrome TTSPORT DRT4+2 6-piston forged brake caliper for the rear wheel and a slotted 2-piece floating rotor.
Detailed view of the 4 racing pistons inside a TTSPORT DRT4 drift racing forged brake caliper.
A chrome TTSPORT DRT 4+2 brake kit is installed on the rear wheel.
Unboxing the complete TTSPORT DRT4+2 drift brake kit, including all components: calipers, rotors, pads, brake line, and mounting hardware.
Customization options for the TTSPORT DRT4+2 rear wheel drift brake kit, featuring available caliper colors (chrome), rotor designs (drilled, blank and slotted).
Complete TTSPORT DRT4+2 rear wheel drift brake kit, showing the 6-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.
Close-up of a chrome TTSPORT DRT4+2 6-piston forged brake caliper for the rear wheel and a slotted 2-piece floating rotor.
Detailed view of the 4 racing pistons inside a TTSPORT DRT4 drift racing forged brake caliper.
A chrome TTSPORT DRT 4+2 brake kit is installed on the rear wheel.
Unboxing the complete TTSPORT DRT4+2 drift brake kit, including all components: calipers, rotors, pads, brake line, and mounting hardware.
Customization options for the TTSPORT DRT4+2 rear wheel drift brake kit, featuring available caliper colors (chrome), rotor designs (drilled, blank and slotted).

Racing Series DRT4+2 Rear Wheel 6-Pistons Drift Racing Brake Kit

$2,180.00 USD
$2,180.00 USD

Shipping costs not included

Caliper Color: Chrome
Rotor Size: 330x12mm (Wheel ≥ 17″)
Rotor Material & Design: Steel - Curved Slotted
Complete TTSPORT DRT4+2 rear wheel drift brake kit, showing the 6-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.

Racing Series DRT4+2 Rear Wheel 6-Pistons Drift Racing Brake Kit

$2,180.00
Complete TTSPORT DRT4+2 rear wheel drift brake kit, showing the 6-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.
Close-up of a chrome TTSPORT DRT4+2 6-piston forged brake caliper for the rear wheel and a slotted 2-piece floating rotor.
Detailed view of the 4 racing pistons inside a TTSPORT DRT4 drift racing forged brake caliper.
A chrome TTSPORT DRT 4+2 brake kit is installed on the rear wheel.
Unboxing the complete TTSPORT DRT4+2 drift brake kit, including all components: calipers, rotors, pads, brake line, and mounting hardware.
Customization options for the TTSPORT DRT4+2 rear wheel drift brake kit, featuring available caliper colors (chrome), rotor designs (drilled, blank and slotted).

Racing Series DRT4+2 Rear Wheel 6-Pistons Drift Racing Brake Kit

$2,180.00
Caliper Color: Chrome
Rotor Size: 330x12mm (Wheel ≥ 17″)
Rotor Material & Design: Steel - Curved Slotted
Specifications

The Pro Drifter's Choice: DRT4+2 Dual-Circuit Rear Caliper

Engineered for professional competition, the DRT4+2 is the ultimate rear brake solution for dedicated drift cars. This innovative caliper features two completely independent hydraulic circuits in a single, ultra-lightweight forged body: a dedicated 4-piston circuit for your hydraulic handbrake, and a separate 2-piston circuit for your foot brake.

This dual-circuit design provides aggressive, instantaneous rear wheel lock-up on demand from the handbrake, without interfering with the balance and feel of your primary braking system. Paired with a specialized thin, solid rotor for maximum thermal response and minimal weight, the DRT4+2 delivers the surgical control and repeatable performance required to dominate the track. Each kit is a bespoke, bolt-on solution, custom-engineered to your vehicle's exact specifications.

Technical Specifications

Caliper
Series Racing Series - Drift Racing
Model DRT4+2
Mounting Position Rear
Number of Pistons 4 (Handbrake) + 2 (Foot Brake)
Piston Type Racing Pistons without Dust Boots
Piston Diameter 27mm × 2, 32mm × 2, 38mm × 2
Dimensions L 266 × W 118 × H 73 mm
Total Piston Area 50.10 cm²
Manufacturing Process Two-Piece Forged
Net Weight 2.50 kg (single caliper without pad)
Surface Finish Chrome Plated
Recommended Wheel Size 17″ or larger
Brake Rotor
Material Heat-Treated High Carbon Steel
Dimensions ⌀330 mm × 12 mm
Construction 2-Piece Rotor
Vented / Solid Solid
Floating / Fixed Fixed
Directional Yes
Design Options Curved Slotted
Brake Pad
Compatible Rotor Material Steel Rotors
Operating Temperature 0–550°C
Coefficient of Friction 0.40–0.46 μ
Brake Hose
Construction 3-Layer Reinforced
Material Inner: PTFE (Teflon); Middle: SUS304 Braided Stainless Steel; Outer: PVC Sheath
Mounting Hardware (Custom Made)
Rotor Hat Custom CNC-Machined Aerospace-Grade Aluminum Alloy
Caliper Bracket Custom CNC-Machined Carbon Steel

Bespoke Fitment & Ordering Process

Step 1: Technical Consultation

Initiate your order by contacting our motorsports engineering team. We will conduct a detailed consultation to understand your vehicle, competition class, and specific performance requirements.

Step 2: Submit Specifications

For Factory Knuckles: Provide vehicle year, make, model, and detailed wheel specifications.

For Modified Knuckles: Provide detailed measurements, technical drawings (CAD files preferred), or high-resolution photos of the custom knuckle assembly.

Step 3: Engineering & Approval

Our engineers will design the bespoke mounting hardware for your application. We will provide you with the final design specifications and production timeline for your approval before manufacturing begins.

Frequently Asked Questions

What is a dual-circuit caliper?
The DRT4+2 features two completely separate hydraulic circuits in one caliper body. The dedicated 4-piston circuit connects to your hydraulic handbrake for maximum, instant lock-up, while the separate 2-piston circuit connects to your foot brake, preserving the car's primary braking balance and pedal feel.
Is this a front or rear brake kit?
This is a **rear-only** braking system, purpose-built for professional drifting applications. It is designed to be paired with a high-performance front brake upgrade.
What information is required for a custom order?
For a vehicle using **factory steering knuckles**, we require the year, make, model, and detailed wheel specs. For a **fully custom or modified knuckle**, we require technical drawings, CAD models, or precise measurements of the mounting points to engineer a perfect bolt-on solution.
Notice

Brake Kit Purchase Notice


  • Custom‑made products cannot be returned unless there is a genuine quality defect.
  • Spacer requirements vary depending on wheel design; we assist with fitment, but spacer‑related issues do not qualify for returns.

1. Disclaimer

  1. Please provide vehicle make, model year, VIN, and wheel size before ordering TTSPORT products.
  2. Confirm wheel measurements and submit photos as requested — TTSPORT is not liable for issues arising from incorrect specs.
  3. All products are inspected before shipping. Inspect upon delivery and report quality issues within 24 hours.

2. Initial Break‑In Procedure

  1. In a safe area, brake from 60 km/h to 10 km/h with moderate pressure—repeat 10 times.
  2. Drive 500–1,000 km with light to moderate usage before full braking performance. Avoid aggressive stops.
  3. Our high‑carbon steel discs have grooved, color‑treated surfaces to help quick bedding and resist corrosion.

3. Product Warranty

  • Calipers: 1‑year warranty on defects. Lifetime maintenance available (parts charged).
  • Discs & Hoses: 90‑day warranty for defects. Expected lifespan: 40,000–60,000 km.
  • Brake Pads: 90‑day coverage. Typical lifespan: 20,000–40,000 km.
  • Custom Hats/Brackets: Fit guaranteed; no warranty post-installation.

4. Usage & Maintenance

  1. Do not wash immediately after hard braking to prevent rotor warpage.
  2. Allow extra stopping distance when driving in wet conditions.
  3. If you experience unusual noise or vibration, consult your installer immediately.

Recommended service intervals:

  • Replace rotors when wear exceeds 3 mm.
  • Front pads: every 30,000 km.
  • Rear pads: every 50,000–60,000 km.
  • Brake fluid: every 40,000 km or every 2 years.

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