ENDLESS RACING BIG4 REAR BIG BRAKE KIT WITH 355MM 3-PIECE ROTORS FOR GSR50W/55W TOYOTA ESTIMA ACR50W/55W [1933295]
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Endless Racing BIG4 Rear Big Brake Kit with 355mm 3-Piece Rotors for GSR50W/55W Toyota Estima ACR50W/55W [1933295]
The Endless Racing BIG4 is a complete GSR50W rear big brake kit for the 2006-present Toyota Estima ACR50W/55W, pairing forged two-piece four-piston calipers with 355mm x 32mm three-piece slit rotors, performance pads, caliper mounting brackets, and brake lines for the rear axle. The Racing BIG4 body is a forged two-piece design at 3,486g per caliper with 27mm and 32mm piston sizing that loads the pad evenly. The rotors carry the Endless slit face that keeps the pad surface clean and friction stable as heat builds. Every component is designed and manufactured in Japan by Endless. Supplied as a complete rear-axle kit in the Endless blue anodize caliper finish.
Features
- Forged Endless Racing BIG4 calipers with paired piston sizing for even pad pressure and a firm, consistent pedal
- Slit rotor face continuously refreshes the pad surface and vents gas without the cracking risk of cross-drilled discs
- Three-piece rotor construction reduces unsprung weight and manages heat across repeated hard stops
- Complete single-axle system: calipers, pads, brackets, rotors, and lines under one part number
- Direct bolt-on installation on the GSR50W/55W with the included mounting brackets
- Machined to Endless production standards with surface accuracy held to 1/1000mm
- A GSR50W rear big brake kit that completes a full Endless brake build
Specifications
- Caliper: Endless Racing BIG4 (EC470), forged two-piece, four pistons
- Piston Sizes: 27mm and 32mm pairs
- Caliper Weight: 3,486g each
- Caliper Finish: Endless blue anodize
- Pads: 18mm thickness, RCP052 shapes
- Supported Compounds: SSM, TR, MX72, MX72 Plus
- Rotor Size: 355mm x 32mm
- Rotor Construction: Three-piece, slit face
- Minimum Wheel Size: 17 inch (verify by wheel design)
- Kit Contents: Endless Racing Calipers (2); Brake Pad Set; Caliper Mounting Brackets (2); Large Diameter Brake Rotors (2); Stainless Brake Lines (2)
- Part Number: 1933295 (Endless Japan reference ESTIMA-GSR50W-6POT-355)
- Position: Rear
Applications
- Toyota Estima ACR50W/55W: GSR50W/55W | 2006-present
Notes
- Verify wheel clearance before ordering; Endless publishes wheel clearance diagrams and Bulletproof Automotive will confirm fitment against your wheel specs.
- Bed the pads in dry conditions; bedding in rain prevents the pads from reaching full performance.
- This kit services the rear axle only; Endless offers matching front systems.
- Sold as a complete rear brake kit (one axle, both corners).
Frequently Asked Questions
- Will this GSR50W rear big brake kit clear my wheels? Clearance depends on wheel design, not just diameter. This kit runs 355mm x 32mm rotors and the Endless Racing BIG4 caliper is sized for wheels from 17 inches. Endless publishes wheel clearance data for its kits; contact Bulletproof Automotive with your wheel specs before ordering and we will confirm fitment.
- What is included in the Endless 1933295 kit? The kit includes two Endless Racing BIG4 calipers, a brake pad set, two caliper mounting brackets, two 355mm x 32mm three-piece rotors, and two brake lines. It is a complete rear-axle system for the GSR50W/55W Toyota Estima ACR50W/55W under one part number.
- Can I run this rear kit with the factory front brakes? The Endless Racing BIG4 rear kit installs independently, and Endless offers matching front systems for most applications. Most builds upgrade the front axle first or together with the rear, since the front carries the majority of braking load. Contact Bulletproof Automotive for a matched front and rear setup.
- What pad compounds work with the Endless Racing BIG4 calipers? The Endless Racing BIG4 runs 18mm-thick pads in the RCP052 shapes. Endless supports its SSM, TR, MX72, MX72 Plus compounds in this caliper, so the same gsr50w rear big brake kit covers street driving through track use on a pad change.
- Is this kit a direct bolt-on? Yes. Part number 1933295 ships with mounting brackets and brake lines for the 2006-present Toyota Estima ACR50W/55W rear axle, so the kit bolts on without fabrication. Bed the pads in dry conditions after installation to reach full performance.
- How is the kit sold? Part number 1933295 is sold as one complete rear brake kit covering both rear corners: calipers, rotors, pads, brackets, and lines, priced and shipped as a single system.
About Endless
Endless is a Japanese brake manufacturer that designs everything in-house and manufactures domestically in Japan, holding surface accuracy to 1/1000mm under strict quality control. The company developed its own laminated sintered wire-mesh backing plate and ceramic carbon rotors, and it proves its parts in competition, running its own factory motorsport program and supplying winning teams across Japanese and European racing. From pads and slit rotors to forged and monobloc calipers, brake fluid, and lines, Endless builds braking systems trusted on both street and circuit.
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- Please review the product dimensions carefully to ensure the right fit for your space
- Color may vary slightly due to lighting and screen settings
- Materials and finishes are selected for both durability and visual appeal
- Some items may require simple assembly upon delivery
- Perfect for both everyday use and long-term comfort
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Product Size Guide
Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.
| Category | Small | Medium | Large |
|---|---|---|---|
| Decor & Accessories | Up to 10″ | 10″ – 20″ | 20″+ |
| Tables | Up to 30″ | 30″ – 60″ | 60″+ |
| Seating | 1 Seater | 2–3 Seater | 4+ Seater |
| Storage Units | Compact | Standard | Large Capacity |
| Lighting | Small Fixture | Standard Fixture | Large Fixture |
Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.
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ENDLESS RACING BIG4 REAR BIG BRAKE KIT WITH 355MM 3-PIECE ROTORS FOR GSR50W/55W TOYOTA ESTIMA ACR50W/55W [1933295]
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