{"product_id":"high-volume-brake-master-cylinder-upgrade-1-25-4mm-na-nb-1989-2005","title":"High Volume Brake Master Cylinder Upgrade 1\" (25.4mm) NA\/NB (1989-2005)","description":"\u003cdiv class=\"hfm-product__overview-desc\"\u003e\n\u003cdiv class=\"ql-block\" data-block-id=\"block-eb26d3cc-a1e1-4a57-beca-1d3c2221a7cf\"\u003e\n\u003ch4\u003e\u003cb\u003eThe Essential 1″ Bore Upgrade for Mazda MX-5 Miata (NA \u0026amp; NB)\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003eThe legendary Mazda MX-5 (Miata) platforms (NA and NB) deserve a modern braking feel. The factory brake pedal is often described as soft or spongy, especially when using upgraded calipers. The HFM.Parts High Volume Master Cylinder is the definitive solution, engineered to increase the bore diameter from the original\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e7\/8″ (22.23mm)\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eto a high-performance\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e1″ (25.4mm)\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eThis increase in fluid volume directly translates to superior pedal feel. You will experience a significant\u003cspan\u003e \u003c\/span\u003e\u003cb\u003ereduction in brake pedal travel\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eand a consistent,\u003cspan\u003e \u003c\/span\u003e\u003cb\u003efirmer pedal response\u003c\/b\u003e, making your braking more predictable and confident whether you are commuting or hitting the track. This master cylinder is suitable for both standard OEM calipers and multi-piston big brake kit applications.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003e\u003cb\u003eKey Advantages \u0026amp; Performance Features\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp\u003eThis high-volume unit is engineered for the NA\/NB platform:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e1″ (25.4mm) Bore Upgrade:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eProvides substantially increased fluid volume and reduced pedal travel over the factory 7\/8″ (22.23mm) bore.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUniversal LHD\/RHD Compatibility:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eDesigned for easy fitment on both Left-Hand Drive and Right-Hand Drive models, with a swappable fluid sensor and included grub screws to safely block unused ports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSuitable for All Calipers:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eExcellent upgrade for those retaining OEM calipers or installing larger multi-piston caliper kits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCorrosion-Proof Geomet® Coating:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eFeatures a durable, premium finish for long-term heat and environmental resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cb\u003eTechnical Specifications Snapshot\u003c\/b\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePiston Bore:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e1″ (25.4mm) (Upgraded from 7\/8″ \/ 22.23mm OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFitment:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eUniversal LHD and RHD (Sensor is swappable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIncluded:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e3x Grub Screws and 2x Copper Washers for install flexibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eGeomet® Finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul class=\"hfm-product__feature-grid\"\u003e\n\u003cli class=\"hfm-product__feature-item\"\u003eSuitable for Stock \u0026amp; Multi-Piston Calipers\u003c\/li\u003e\n\u003cli class=\"hfm-product__feature-item\"\u003eImproved Brake Pedal Responsiveness\u003c\/li\u003e\n\u003cli class=\"hfm-product__feature-item\"\u003eIncreased Brake Fluid Volume\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Turn 14","offers":[{"title":"Default Title","offer_id":47878323699938,"sku":"BMMX-NANB","price":420.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/9734\/8386\/files\/bmmx-nanb_01-600x750.jpg?v=1781067806","url":"https:\/\/mx5mania.com.au\/products\/high-volume-brake-master-cylinder-upgrade-1-25-4mm-na-nb-1989-2005","provider":"MX5 Mania","version":"1.0","type":"link"}