{"product_id":"gp4rx-cnc-motorcycle-brake-caliper-7075-aluminum-32mm-pistons-100mm","title":"GP4RX CNC Brake Caliper – 7075 Aluminum, 4×32mm Pistons, 100mm","description":"\n\u003ch2\u003eGP4RX CNC Motorcycle Brake Caliper – Premium 7075 Aluminum with Nickel-Plated Finish\u003c\/h2\u003e\n\n\u003cp\u003eUpgrade your motorcycle's braking system with the GP4RX CNC Brake Caliper — engineered for riders who demand precision, durability, and consistent performance. Machined from aerospace-grade 7075 aluminum alloy and finished with a sleek nickel-plated surface, this caliper delivers race-inspired stopping power with a refined look that stands out on any build.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the GP4RX Caliper?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e7075 Aluminum Alloy Body:\u003c\/strong\u003e One of the strongest aluminum alloys available, providing a lightweight yet exceptionally rigid caliper body that resists flex under demanding braking conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNickel-Plated Surface Finish:\u003c\/strong\u003e Offers outstanding corrosion resistance and a polished, premium appearance that holds up to road grime, moisture, and heat cycles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4 × 32mm CNC-Machined Pistons:\u003c\/strong\u003e Made from 6061 T6 homogeneous aluminum alloy with hard anodized (hard oxidation) surfaces for superior wear resistance and consistent brake force distribution.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Sealing Ring Design:\u003c\/strong\u003e Each piston features a dual sealing ring for enhanced fluid retention, reduced leak risk, and long-lasting seal integrity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Heat-Resistant Rubber Seals:\u003c\/strong\u003e Engineered to withstand temperatures up to 230°C (446°F), ensuring seal performance remains stable even during aggressive or extended braking sessions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100mm Installation Distance (Locking Point):\u003c\/strong\u003e Designed to fit a wide range of motorcycle applications with a standard 100mm mounting pitch.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e10×1 Oil Inlet Thread:\u003c\/strong\u003e Industry-standard thread sizing for broad compatibility with aftermarket and OEM brake lines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes Dual-Screw Exhaust Oil Pipe Fitting:\u003c\/strong\u003e Everything you need for a complete, no-fuss installation is included in the original packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCaliper Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGP4RX\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCaliper Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7075 Aluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurface Treatment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNickel Plating\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6061 Homogeneous T6 Aluminum Alloy (Hard Anodized)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Pistons\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 × 32mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOil Inlet Thread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Oil Seal Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230°C (446°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × Caliper, Dual-Screw Exhaust Oil Pipe Fitting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCustom motorcycle builds and performance upgrades\u003c\/li\u003e\n  \u003cli\u003eTrack-day and sport-touring applications\u003c\/li\u003e\n  \u003cli\u003eRiders seeking a high-spec aftermarket brake caliper with a 100mm mounting pitch\u003c\/li\u003e\n  \u003cli\u003eCafé racer, streetfighter, and naked bike projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-50-psi-dial-tire-pressure-gauge-car-motorcycle-bike\"\u003e0–50 PSI Dial Tire Pressure Gauge – Car, Motorcycle \u0026amp; Bike\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-5l-electric-high-pressure-foam-sprayer-portable-car-wash-gun\"\u003e1.5L Electric Foam Sprayer – Portable High-Pressure Car Wash Gun\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on motorcycle braking system maintenance and safety best practices, refer to the U.S. Consumer Product Safety Commission (CPSC) for consumer safety standards on powersport components.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: What is the mounting distance (locking point) for the GP4RX brake caliper?\u003c\/h4\u003e\n\u003cp\u003eA: The GP4RX CNC brake caliper has an installation distance (locking point) of 100mm, making it compatible with a wide range of motorcycle fork and swingarm bracket configurations that use this standard pitch.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What type of brake fluid is compatible with the GP4RX caliper's seals?\u003c\/h4\u003e\n\u003cp\u003eA: The caliper uses high heat-resistant rubber seals rated up to 230°C (446°F). It is compatible with standard DOT 4 and DOT 5.1 brake fluids commonly used in motorcycle braking systems. Always verify compatibility with your specific brake fluid before installation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are the pistons easy to maintain or rebuild?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The four 32mm pistons are made from hard-anodized 6061 T6 aluminum alloy and feature a dual sealing ring design, which simplifies inspection and rebuilding. Replacement seals for standard 32mm pistons are widely available through aftermarket motorcycle parts suppliers.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is any hardware included with the caliper?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The GP4RX caliper ships in original packaging and includes a dual-screw exhaust oil pipe fitting, so you can begin your brake line setup right away without needing to source additional fittings separately.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the mounting distance (locking point) for the GP4RX brake caliper?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The GP4RX CNC brake caliper has an installation distance (locking point) of 100mm, making it compatible with a wide range of motorcycle fork and swingarm bracket configurations that use this standard pitch.\"}}, {\"@type\": \"Question\", \"name\": \"What type of brake fluid is compatible with the GP4RX caliper's seals?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The caliper uses high heat-resistant rubber seals rated up to 230°C (446°F). 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