{"product_id":"fvrito-12mm-rear-hydraulic-brake-assembly-for-50-150cc-pit-bikes-master-cylinder-caliper-550mm-hose","title":"FVRITO 12mm Rear Hydraulic Brake Assembly for 50–150cc Pit Bikes — Master Cylinder, Caliper, 550mm Hose","description":"\u003cp\u003e\u003cstrong\u003eThe FVRITO 12mm rear disc hydraulic brake assembly is a complete replacement master cylinder, caliper and pad kit designed for 50–150cc Chinese pit and dirt bikes with a 12mm rear wheel shaft.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact, ready-to-install brake assembly combines a 12mm mounting axle, 550mm brake hose and an integrated master cylinder to restore rear stopping power on many small-displacement bikes. It’s built to match common Chinese-made models (SSR, Taotao, Apollo, Coolster, Roketa, Pitster Pro, Atomik and similar brands) and comes with spare pads and basic fittings so you can install quickly and check fitment before final mounting.\u003c\/p\u003e\n\n\u003ch3\u003eWill this brake assembly fit my pit bike?\u003c\/h3\u003e\n\n\u003cp\u003eCompatibility depends on axle diameter and mounting spacing. This assembly is built for 12mm rear wheel shafts and mounting hole distances between 42–50mm; confirm your bike’s shaft size and bracket spacing before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIntended for 12mm axle shaft bikes (not compatible with 15mm shafts).\u003c\/li\u003e\n  \u003cli\u003eMounting hole distance: 42–50mm (1.65–1.97 inches).\u003c\/li\u003e\n  \u003cli\u003eBanjo bolt thread: M10 x 1.25 for brake hose connection.\u003c\/li\u003e\n  \u003cli\u003eCommonly fits many 50–150cc Chinese pit\/dirt bikes and popular model lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components come in the box and what tools will I need?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit ships with the brake assembly pre-mounted to the hose plus a few extras so you can swap parts on the trail. Typical installation requires basic hand tools and bleeding supplies to ensure proper hydraulic function after fitting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded: 1x brake assembly (master cylinder + caliper), 3x cable ties, 1x extra brake pad set, 1x fuel filter.\u003c\/li\u003e\n  \u003cli\u003eTools recommended: metric sockets\/wrenches, pliers, hex keys, and a simple brake-bleeding kit.\u003c\/li\u003e\n  \u003cli\u003eBrake hose length: 550mm (approx. 21.65 inches) — trim and refit as needed by a trained mechanic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the FVRITO assembly affect braking performance and maintenance?\u003c\/h3\u003e\n\n\u003cp\u003eReplacing a worn rear master cylinder and caliper restores pedal feel and reduces sponginess from leaks or degraded seals. This hydraulic assembly uses a standard banjo connection and replaceable pads to keep long-term maintenance simple and cost-effective.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHole diameter for mounting: 79mm, enabling stable caliper positioning.\u003c\/li\u003e\n  \u003cli\u003eMount axle hole: 12mm to match 12mm rear shafts without modification.\u003c\/li\u003e\n  \u003cli\u003eSupplied extra pads for quick roadside replacement.\u003c\/li\u003e\n  \u003cli\u003eRegular bleeding and fluid checks recommended for consistent performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat sizing and fit checks should I run before ordering?\u003c\/h3\u003e\n\n\u003cp\u003eDouble-check a few physical measurements on your bike so the part bolts up cleanly and the hose reaches the master cylinder. If any measurement falls outside the listed range, this assembly may not fit correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm rear wheel shaft diameter is 12mm (not 15mm).\u003c\/li\u003e\n  \u003cli\u003eMeasure caliper mounting hole centers: 42–50mm acceptable.\u003c\/li\u003e\n  \u003cli\u003eVerify banjo bolt thread and brake hose routing are compatible with your frame.\u003c\/li\u003e\n  \u003cli\u003eCompare the kit’s 79mm hole diameter against your bracket clearances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Riders and mechanics who need an economical, drop-in style rear hydraulic brake replacement for 50–150cc Chinese pit and small dirt bikes. Ideal for owners of SSR, Taotao, Coolster, Roketa, Apollo, Pitster Pro, Atomik and similar models who require a 12mm axle solution and want spare pads and basic hardware included. If you’re unsure about fit, measure your axle and mounting spacing or message the seller with model details for compatibility guidance before purchase.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this fit a 125cc pit bike rear axle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes if your rear axle is 12mm and mounting hole spacing is 42–50mm; it does not fit 15mm axles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are brake pads included and replaceable?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit includes an extra set of pads, and pads are replaceable for routine maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"FVRITO","offers":[{"title":"Default Title","offer_id":55167327109463,"sku":"B097R437MX","price":59.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/fvirtiro-rear-brake-assembly-front.jpg?v=1790383503","url":"https:\/\/britishgarage.co.uk\/products\/fvrito-12mm-rear-hydraulic-brake-assembly-for-50-150cc-pit-bikes-master-cylinder-caliper-550mm-hose","provider":"British Garage","version":"1.0","type":"link"}