{"product_id":"titanium-piston-for-shimano-hydraulic-disc-brakes-105-r7170-ultegra-r8170-dura-ace-r9270-21mm-diameter","title":"Titanium Piston for Shimano Hydraulic Disc Brakes | 105 R7170\/Ultegra R8170\/Dura-Ace R9270 | 21mm Diameter","description":"\u003cp\u003e\u003cstrong\u003eHydraulic Disc Brake Titanium Piston | Brake fluid, sweat \u0026amp; corrosion resistant\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShimano 21mm Diameter Piston | Sold per Caliper (1 set). Front \u0026amp; Rear Caliper need 2 sets.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerfect upgrade for worn-out stock ceramic pistons.\u003c\/p\u003e\n\u003cp\u003eThis titanium replacement piston is resistant to brake fluid and corrosion. A small part with a disproportionate impact on brake reliability.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e105 R7170\u003cbr\u003eUltegra R8170\u003cbr\u003eDura-Ace R9270\u003cb\u003e\u003cu\u003e\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003ePVD Hardened Surface\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003ePhysical Vapour Deposition (PVD) coating adds a hardened outer layer that resists scratching and surface wear.\u003c\/p\u003e\n\u003cp\u003eUnlike conventional electroplating, PVD bonds at a molecular level. The finish won't flake, peel, or degrade in contact with brake fluid over time.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHot Forged Construction\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe piston is hot-stamp forged rather than machined from bar stock.\u003c\/p\u003e\n\u003cp\u003eForging aligns the grain structure of the titanium, producing a stronger and more fatigue-resistant component, better suited to the repeated hydraulic pressure cycles of a brake piston than a machined equivalent.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e~40% Lighter Than Stock\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTitanium is significantly lighter than steel for the same strength.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCorrosion Resistant - Brake Fluid, Sweat \u0026amp; Rain\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTitanium is highly resistant to corrosion from mineral oil, salt, and sweat — all of which the piston is exposed to in normal Road use.\u003c\/p\u003e\n\u003cp\u003eThe PVD finish adds a further protective layer over the base titanium, keeping the piston functioning like new over the life of the brake.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePolished Mirror Finish\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003ePrecision polished to a mirror finish.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat's Included?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIn one set (Suitable for 1 caliper): \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2x Titanium Pistons\u003c\/li\u003e\n\u003cli\u003e2x O-Ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor front and rear calipers, please buy 2 sets.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eInstallation involves opening the brake hydraulic system. If you are unfamiliar with hydraulic brake servicing, please seek assistance from a local bike shop.\u003c\/p\u003e\n\u003cp\u003eIncorrect installation may affect brake performance and safety.\u003c\/p\u003e","brand":"Risk","offers":[{"title":"2x Ti Piston \u0026 2x O-Ring (Suitable for 1 Caliper)","offer_id":53134504755500,"sku":null,"price":34.98,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/3503\/1340\/files\/Risk_Shimano_Road_Ti_Brake_Piston_21mm.jpg?v=1777024564","url":"https:\/\/tipartstitanium.com\/cs\/products\/titanium-piston-for-shimano-hydraulic-disc-brakes-105-r7170-ultegra-r8170-dura-ace-r9270-21mm-diameter","provider":"Ti-Parts Titanium","version":"1.0","type":"link"}