{"product_id":"100mm-radial-4-piston-brake-caliper-motorcycle-upgrade","title":"100mm 4-Piston Radial Brake Caliper – Motorcycle Upgrade","description":"\n\u003ch2\u003e100mm Radial Mount 4-Piston Brake Caliper – Motorcycle Modification Upgrade\u003c\/h2\u003e\n\u003cp\u003eTake your motorcycle's stopping power to the next level with this precision-engineered \u003cstrong\u003e100mm radial mount four-piston brake caliper\u003c\/strong\u003e. Crafted from aviation-grade aluminum alloy using five-axis CNC forging technology, this track-grade caliper delivers confident, linear braking performance with a smooth, controlled feel — whether you're carving mountain roads or pushing hard on the track.\u003c\/p\u003e\n\n\u003ch3\u003e⚙️ Four-Piston Braking Performance\u003c\/h3\u003e\n\u003cp\u003eEquipped with \u003cstrong\u003e4 × 34mm opposed pistons\u003c\/strong\u003e, braking force is distributed evenly across the full pad surface, eliminating uneven wear and delivering a linear, precise feel at the lever. Compared to standard dual-piston calipers, braking efficiency is improved by over 60% — high-speed stops feel planted and controlled, with no unwanted forward dive or tail movement.\u003c\/p\u003e\n\n\u003ch3\u003e🔧 Universal 100mm Radial Locking Point – Bolt-On Fit\u003c\/h3\u003e\n\u003cp\u003eFeatures a \u003cstrong\u003estandard 100mm center-to-center radial mount\u003c\/strong\u003e design, compatible with a wide range of motorcycles. No additional adapters or custom machining required — simply unbolt the old caliper and bolt this one on for an immediate braking system upgrade.\u003c\/p\u003e\n\n\u003ch3\u003e✈️ CNC Forged Aluminum Alloy Construction\u003c\/h3\u003e\n\u003cp\u003eBuilt from \u003cstrong\u003eaviation-grade aluminum alloy\u003c\/strong\u003e using integrated forging and five-axis CNC precision machining. The hollow lightweight structure balances rigidity with excellent heat dissipation, maintaining consistent braking performance even during sustained high-intensity use. Choose from two finishes:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAurora Silver:\u003c\/strong\u003e High-gloss mirror polish — bold, eye-catching, complements brightly colored builds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMidnight Black:\u003c\/strong\u003e Low-profile matte texture — scratch and dirt resistant, ideal for blacked-out or stealth-style motorcycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e✅ Track-Level Details \u0026amp; Component Quality\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-temperature fluororubber oil seals\u003c\/strong\u003e — resist heat, cold, rain, and sun without leaking or jamming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-rigidity reinforced caliper body\u003c\/strong\u003e — impact and deformation resistant for confident braking on uneven roads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-precision piston seals\u003c\/strong\u003e — ensure smooth, clean piston return with zero brake drag, preserving disc and pad life\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum Alloy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePiston configuration:\u003c\/strong\u003e 4 × 34mm opposed pistons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount center distance:\u003c\/strong\u003e 100mm radial\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e JK26\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🔗 Related 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 more information on motorcycle brake system safety standards, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What motorcycles are compatible with this 100mm radial brake caliper?\u003c\/h4\u003e\n\u003cp\u003eA: This caliper uses a standard 100mm center-to-center radial locking point, which is a widely used mounting standard on sport bikes and modified motorcycles. Most bikes with a 100mm radial mount fork bracket will accept this caliper without an adapter. Always verify your fork's mounting spec before purchase.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between the Aurora Silver and Midnight Black finish options?\u003c\/h4\u003e\n\u003cp\u003eA: The Aurora Silver finish uses a high-gloss mirror polishing process for a striking, premium look that pairs well with brightly colored or chrome-accented builds. The Midnight Black uses a matte texture that is more resistant to showing dirt and minor scuffs, and suits stealth or blacked-out motorcycle builds.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this 4-piston radial caliper require brake fluid or additional hardware to install?\u003c\/h4\u003e\n\u003cp\u003eA: The caliper set includes the caliper unit itself. You will need to supply compatible brake pads, banjo bolts, and brake fluid appropriate for your motorcycle's braking system. No adapter bracket is needed for 100mm radial fork mounts, making installation straightforward for experienced mechanics or enthusiasts.\u003c\/p\u003e\n\u003ch4\u003eQ: How does the fluororubber oil seal improve caliper durability?\u003c\/h4\u003e\n\u003cp\u003eA: Fluororubber (FKM) seals are engineered to withstand extreme temperatures — both the intense heat generated during sustained braking and cold-weather conditions. They resist swelling, hardening, and leaking far better than standard rubber seals, ensuring consistent caliper performance and long service life.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What motorcycles are compatible with this 100mm radial brake caliper?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This caliper uses a standard 100mm center-to-center radial locking point, which is a widely used mounting standard on sport bikes and modified motorcycles. Most bikes with a 100mm radial mount fork bracket will accept this caliper without an adapter. Always verify your fork's mounting spec before purchase.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the Aurora Silver and Midnight Black finish options?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Aurora Silver finish uses a high-gloss mirror polishing process for a striking, premium look that pairs well with brightly colored or chrome-accented builds. The Midnight Black uses a matte texture that is more resistant to showing dirt and minor scuffs, and suits stealth or blacked-out motorcycle builds.\"}}, {\"@type\": \"Question\", \"name\": \"Does this 4-piston radial caliper require brake fluid or additional hardware to install?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The caliper set includes the caliper unit itself. You will need to supply compatible brake pads, banjo bolts, and brake fluid appropriate for your motorcycle's braking system. No adapter bracket is needed for 100mm radial fork mounts, making installation straightforward for experienced mechanics or enthusiasts.\"}}, {\"@type\": \"Question\", \"name\": \"How does the fluororubber oil seal improve caliper durability?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Fluororubber (FKM) seals are engineered to withstand extreme temperatures — both the intense heat generated during sustained braking and cold-weather conditions. They resist swelling, hardening, and leaking far better than standard rubber seals, ensuring consistent caliper performance and long service life.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Motorcycle \u0026 Powersports\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/collections\/motorcycle-powersports\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"100mm 4-Piston Radial Brake Caliper – Motorcycle Upgrade\", \"item\": \"https:\/\/0i45ne-c8.myshopify.com\/products\/100mm-radial-4-piston-brake-caliper-motorcycle-upgrade\"}]}\u003c\/script\u003e","brand":"Zpaxo","offers":[{"title":"Silver","offer_id":54189961871670,"sku":"14:350853","price":341.55,"currency_code":"USD","in_stock":false},{"title":"black","offer_id":54189961904438,"sku":"14:193","price":341.55,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0989\/7774\/3158\/files\/S256f889e7f59487e8e2e8c3551abd780u.webp?v=1783276873","url":"https:\/\/0i45ne-c8.myshopify.com\/products\/100mm-radial-4-piston-brake-caliper-motorcycle-upgrade","provider":"Zpaxo","version":"1.0","type":"link"}