{"product_id":"royal-enfield-1100729-d-rear-master-cylinder-meteor-350","title":"Royal Enfield 1100729\/D – Rear Brake Master Cylinder Assembly (OE) for Meteor 350 BS6 \u0026 UK \/ Euro V","description":"\u003cp data-start=\"396\" data-end=\"763\"\u003eRestore braking reliability with the genuine Royal Enfield \u003cstrong data-start=\"498\" data-end=\"541\"\u003e1100729\/D Rear Master Cylinder Assembly\u003c\/strong\u003e. As the original equipment (OE) component fitted to the rear brake system of the Meteor 350 UK\/Euro V models, this master cylinder meets factory spec for internal bore size, sealing, mounting, and hydraulic performance.\u003c\/p\u003e\n\u003cp data-start=\"765\" data-end=\"1191\"\u003eOver time, your rear master cylinder may suffer wear: piston seals degrade, leaks appear, the lever feels spongy or loses responsiveness. Replacing with part 1100729\/D ensures you regain crisp braking feel, proper pressure buildup, and safe stopping power. Built from high-grade materials, this cylinder is corrosion resistant and designed to integrate with the standard reservoir, brake line and lever without modification.\u003c\/p\u003e\n\u003cp data-start=\"1193\" data-end=\"1629\"\u003eWhether you're replacing a worn unit, dealing with a leak, or just doing preventative maintenance, this OE master cylinder delivers the performance and durability expected from Royal Enfield’s braking components. Installation requires basic mechanical skills: removing old unit, transferring lever \u0026amp; reservoir if needed, bleeding system, and ensuring firm pedal feel. Ride safe with the correct spare and avoid potential safety hazards.\u003c\/p\u003e\n\u003chr data-start=\"1631\" data-end=\"1634\"\u003e\n\u003cp data-start=\"1636\" data-end=\"1655\"\u003e\u003cstrong data-start=\"1636\" data-end=\"1653\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1656\" data-end=\"2303\"\u003e\n\u003cli data-start=\"1656\" data-end=\"1774\"\u003e\n\u003cp data-start=\"1658\" data-end=\"1774\"\u003eGenuine Royal Enfield OEM \u003cstrong data-start=\"1684\" data-end=\"1697\"\u003e1100729\/D\u003c\/strong\u003e Rear Master Cylinder – factory spec. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1775\" data-end=\"1888\"\u003e\n\u003cp data-start=\"1777\" data-end=\"1888\"\u003eExact fit for rear brake lever \u0026amp; line on Meteor 350 UK \/ Euro V models. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1889\" data-end=\"2013\"\u003e\n\u003cp data-start=\"1891\" data-end=\"2013\"\u003eDurable finish and seals to resist corrosion, temperature changes, and road grime. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2014\" data-end=\"2096\"\u003e\n\u003cp data-start=\"2016\" data-end=\"2096\"\u003eOE bore and piston design preserves correct lever feel and braking modulation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2097\" data-end=\"2183\"\u003e\n\u003cp data-start=\"2099\" data-end=\"2183\"\u003eSold as complete master cylinder assembly (not just internals) – ready to bolt on.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2184\" data-end=\"2303\"\u003e\n\u003cp data-start=\"2186\" data-end=\"2303\"\u003eCertified genuine spare part; matches what was originally mounted at factory. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2305\" data-end=\"2308\"\u003e\n\u003cp data-start=\"2310\" data-end=\"2358\"\u003e\u003cstrong data-start=\"2310\" data-end=\"2358\"\u003eCompatibility Table (Confirmed Models Only): ALL INDIA +\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2360\" data-end=\"2760\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2360\" data-end=\"2433\"\u003e\n\u003ctr data-start=\"2360\" data-end=\"2433\"\u003e\n\u003cth data-start=\"2360\" data-end=\"2368\" data-col-size=\"sm\"\u003eModel\u003c\/th\u003e\n\u003cth data-start=\"2368\" data-end=\"2388\" data-col-size=\"sm\"\u003eEngine \/ Platform\u003c\/th\u003e\n\u003cth data-start=\"2388\" data-end=\"2409\" data-col-size=\"md\"\u003eEmissions \/ Region\u003c\/th\u003e\n\u003cth data-start=\"2409\" data-end=\"2424\" data-col-size=\"md\"\u003eYears \/ Trim\u003c\/th\u003e\n\u003cth data-start=\"2424\" data-end=\"2433\" data-col-size=\"lg\"\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2456\" data-end=\"2760\"\u003e\n\u003ctr data-start=\"2456\" data-end=\"2760\"\u003e\n\u003ctd data-start=\"2456\" data-end=\"2481\" data-col-size=\"sm\"\u003eMeteor 350 UK \/ Euro V\u003c\/td\u003e\n\u003ctd data-start=\"2481\" data-end=\"2517\" data-col-size=\"sm\"\u003e349 cc \/ Single cylinder J-Series\u003c\/td\u003e\n\u003ctd data-start=\"2517\" data-end=\"2563\" data-col-size=\"md\"\u003eUK \/ Euro V (and equivalent export markets)\u003c\/td\u003e\n\u003ctd data-start=\"2563\" data-end=\"2617\" data-col-size=\"md\"\u003eVarious recent trims (Fireball, Stellar, Supernova)\u003c\/td\u003e\n\u003ctd data-start=\"2617\" data-end=\"2760\" data-col-size=\"lg\"\u003eIron City lists “Fits: Meteor 350 – UK Euro V – Fireball \/ Stellar \/ Supernova colors” for 1100729\/D. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"2762\" data-end=\"2765\"\u003e\n\u003cp data-start=\"2767\" data-end=\"2782\"\u003e\u003cstrong data-start=\"2767\" data-end=\"2780\"\u003eVariants:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2783\" data-end=\"2984\"\u003e\n\u003cli data-start=\"2783\" data-end=\"2843\"\u003e\n\u003cp data-start=\"2785\" data-end=\"2843\"\u003eThis part is a \u003cstrong data-start=\"2800\" data-end=\"2840\"\u003esingle rear master cylinder assembly\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2844\" data-end=\"2906\"\u003e\n\u003cp data-start=\"2846\" data-end=\"2906\"\u003eNo confirmed alternate finishes or variants for 1100729\/D.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2907\" data-end=\"2984\"\u003e\n\u003cp data-start=\"2909\" data-end=\"2984\"\u003eSold as complete unit; lever, reservoir interfaces per stock configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2986\" data-end=\"2989\"\u003e\n\u003cp data-start=\"2991\" data-end=\"3000\"\u003e\u003cstrong data-start=\"2991\" data-end=\"3000\"\u003eFAQs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col data-start=\"3002\" data-end=\"4518\"\u003e\n\u003cli data-start=\"3002\" data-end=\"3213\"\u003e\n\u003cp data-start=\"3005\" data-end=\"3213\"\u003e\u003cstrong data-start=\"3005\" data-end=\"3063\"\u003eIs this the genuine Royal Enfield part or aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3063\" data-end=\"3066\"\u003eThis is a genuine OEM part. Royal Enfield’s parts catalogues list \u003cstrong data-start=\"3135\" data-end=\"3148\"\u003e1100729\/D\u003c\/strong\u003e as “MASTER CYLINDER-REAR”. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003ca href=\"https:\/\/www.bike-parts-royalenfield.com\/royalenfield-motorcycle\/assignment_spare_parts\/1100729_D?utm_source=chatgpt.com\" rel=\"noopener\" alt=\"https:\/\/www.bike-parts-royalenfield.com\/royalenfield-motorcycle\/assignment_spare_parts\/1100729_D?utm_source=chatgpt.com\" class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]! transition-colors duration-150 ease-in-out\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3002\" data-end=\"3213\"\u003e\n\u003cp data-start=\"3005\" data-end=\"3213\"\u003e\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003ca href=\"https:\/\/www.bike-parts-royalenfield.com\/royalenfield-motorcycle\/assignment_spare_parts\/1100729_D?utm_source=chatgpt.com\" rel=\"noopener\" alt=\"https:\/\/www.bike-parts-royalenfield.com\/royalenfield-motorcycle\/assignment_spare_parts\/1100729_D?utm_source=chatgpt.com\" class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]! transition-colors duration-150 ease-in-out\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cstrong data-start=\"3218\" data-end=\"3279\"\u003eWill this fit non-UK Meteor 350 or Indian BS6 Meteor 350?\u003c\/strong\u003e\u003cbr data-start=\"3279\" data-end=\"3282\"\u003eYes it fits all Indian Variants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3632\" data-end=\"3887\"\u003e\n\u003cp data-start=\"3635\" data-end=\"3887\"\u003e\u003cstrong data-start=\"3635\" data-end=\"3691\"\u003eDo I need to reuse the old brake lever or reservoir?\u003c\/strong\u003e\u003cbr data-start=\"3691\" data-end=\"3694\"\u003eYou can reuse the stock lever and reservoir provided they are undamaged and properly sealed. However, ensure all seals in the master cylinder are good; any damage can compromise performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3889\" data-end=\"4189\"\u003e\n\u003cp data-start=\"3892\" data-end=\"4189\"\u003e\u003cstrong data-start=\"3892\" data-end=\"3951\"\u003eHow do I bleed this master cylinder after installation?\u003c\/strong\u003e\u003cbr data-start=\"3951\" data-end=\"3954\"\u003eAfter installation, bleed the rear brake line until firm pedal feel. Use the recommended brake fluid (as per your Meteor 350 manual), purge air bubbles from reservoir, lines, and cylinder. Check lever travel and leaks before riding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4191\" data-end=\"4518\"\u003e\n\u003cp data-start=\"4194\" data-end=\"4518\"\u003e\u003cstrong data-start=\"4194\" data-end=\"4258\"\u003eHow do I know it's time to replace the rear master cylinder?\u003c\/strong\u003e\u003cbr data-start=\"4258\" data-end=\"4261\"\u003eCommon signs: rear brake lever feels spongy even after bleeding; visible fluid leak; lever travel too long; seized piston or sluggish return; hard to modulate braking. If any of these appear, replacement with a genuine unit like 1100729\/D is recommended.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"UNDER THE HOOD","offers":[{"title":"Default Title","offer_id":50423319363879,"sku":null,"price":1640.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/OEM_master_cylinder_rear_brake_1100729_D_installed_on_Meteor_350.png?v=1758032266","url":"https:\/\/underthehood.co.in\/products\/royal-enfield-1100729-d-rear-master-cylinder-meteor-350","provider":"UNDER THE HOOD","version":"1.0","type":"link"}