{"product_id":"4-piston-cnc-aluminum-disc-brake-caliper-electric-motorcycle","title":"4-Piston CNC Disc Brake Caliper – Electric Motorcycle Upgrade","description":"\n\u003ch2\u003eUpgrade Your Braking System with the M16 Four-Piston Disc Brake Caliper\u003c\/h2\u003e\n\u003cp\u003eTake your electric motorcycle or scooter's stopping power to the next level with this high-performance \u003cstrong\u003efour-piston disc brake caliper\u003c\/strong\u003e. Engineered for daily commuting and demanding rides alike, this precision-crafted caliper delivers balanced, responsive braking with a solid, confident feel every time you squeeze the lever.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Riders Choose This Caliper\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpposed Four-Piston Synchronous Push Structure:\u003c\/strong\u003e Brake pads make even, balanced contact with the disc, delivering linear, consistent braking force and a shorter stopping distance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull CNC Aviation Aluminum Alloy Construction:\u003c\/strong\u003e Machined from a single billet of high-grade aluminum alloy for exceptional rigidity, impact resistance, and deformation resistance — without adding unnecessary weight. Lightweight design reduces unsprung load for more agile handling.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e84mm Standard Hole Spacing — Direct Bolt-On Fit:\u003c\/strong\u003e Compatible with a wide range of electric motorcycles, electric light motorcycles, and the majority of scooters. No adapter plates, no drilling — a straightforward upgrade even for first-time modifiers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Temperature Oil Seals \u0026amp; Precision Pistons:\u003c\/strong\u003e Reliable sealing performance ensures no oil leakage or seepage under sustained heavy use. Hydraulic transmission stays smooth and consistent, keeping your brake feel firm and responsive over the long term.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Installed High-Friction Brake Pads:\u003c\/strong\u003e Factory-fitted brake pads with a high friction coefficient perform consistently in both high and low temperature conditions. Quiet operation, excellent wear resistance, and gentler on your brake disc — reducing long-term maintenance costs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStreamlined Hollow Heat Dissipation Design:\u003c\/strong\u003e The open body structure accelerates airflow around the caliper, quickly dispersing frictional heat during extended downhill or continuous braking, effectively suppressing brake fade and maintaining stable braking force.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Two-Tone Aesthetic:\u003c\/strong\u003e Delicate milling texture paired with gold accent screws and a 3D-engraved MTRJE brand logo — a functional upgrade that also enhances your motorcycle's visual appeal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJK26 (M16)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFour-Piston Opposed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Hole Spacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e84mm Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCNC Aviation Aluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectric motorcycles, electric light motorcycles, most scooters\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrake Pads Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (pre-installed high-friction pads)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China (Mainland)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatible With\u003c\/h3\u003e\n\u003cp\u003eDesigned to fit most electric motorcycles, electric scooters, and pedal motorcycles with standard 84mm caliper mounting hole spacing — including popular models in the No. 9 and Xiaoniu series. Direct bolt-on installation with original hole screws; no adapter brackets or custom machining required.\u003c\/p\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\u003ch3\u003eBrake Safety Information\u003c\/h3\u003e\n\u003cp\u003eFor guidance on motorcycle brake maintenance and safety standards, refer to the U.S. Consumer Product Safety Commission (CPSC) for general product safety information relevant to vehicle components and aftermarket parts.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the mounting hole spacing for this four-piston disc brake caliper?\u003c\/h4\u003e\n\u003cp\u003eA: The caliper uses a standard \u003cstrong\u003e84mm mounting hole spacing\u003c\/strong\u003e, making it compatible with a wide range of electric motorcycles, electric scooters, and most pedal motorcycles. It installs directly with original hole screws — no adapter codes or drilling needed.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this caliper compatible with my electric scooter or motorcycle?\u003c\/h4\u003e\n\u003cp\u003eA: This four-piston caliper is designed to fit most electric motorcycles, electric light motorcycles, and the majority of scooters with standard 84mm caliper hole spacing, including popular brands like No. 9 and Xiaoniu series. Check your current caliper's mounting hole spacing before purchasing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the caliper come with brake pads?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The caliper comes \u003cstrong\u003epre-installed with high-friction coefficient brake pads\u003c\/strong\u003e from the factory. These pads are designed for quiet, wear-resistant performance in both high and low temperature conditions, and are less likely to scratch your brake disc.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Will the caliper hold up under heavy, continuous braking without overheating?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The streamlined \u003cstrong\u003ehollow heat dissipation body design\u003c\/strong\u003e accelerates airflow to rapidly dissipate frictional heat during prolonged downhill rides or heavy braking sessions. Combined with high-temperature-resistant oil seals, the caliper is built to resist brake fade and maintain consistent hydraulic pressure over extended use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this caliper difficult to install for beginners?\u003c\/h4\u003e\n\u003cp\u003eA: Not at all. The 84mm standard hole spacing allows for a \u003cstrong\u003edirect bolt-on installation\u003c\/strong\u003e using your motorcycle's existing screw holes. No adapter plates, drilling, or polishing are required, making it an accessible upgrade even if it's your first brake modification.\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 hole spacing for this four-piston disc brake caliper?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The caliper uses a standard 84mm mounting hole spacing, making it compatible with a wide range of electric motorcycles, electric scooters, and most pedal motorcycles. 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