{"product_id":"the-rig-spine-smallrig-15mm-carbon-fiber-rods","title":"The Rig Spine | SmallRig 15mm Carbon Fiber Rods, 4 to 12 Inches, Pair","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp style=\"font-size:16px;line-height:1.85;color:#333;margin:0 0 20px 0;\"\u003eEvery camera rig is a structure, and every structure has a spine. On a modern rig the spine is not the cage and not the handle, it is the pair of fifteen millimetre rods running forward from the body, because everything that makes a rig useful hangs off them: the follow focus, the matte box, the lens support, the shoulder pad. Get the rods wrong and the whole assembly flexes. Get them right and the rig behaves like a single rigid object instead of a collection of clamps.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;line-height:1.85;color:#333;margin:0 0 20px 0;\"\u003eThese are hollow carbon fibre tubes, which is the correct material for the job. Carbon has a stiffness to weight ratio that aluminium cannot match at this diameter, so a rod that weighs almost nothing still resists the twisting load a follow focus applies when a focus puller racks a lens. Hollow rather than solid matters too: the wall carries the load, the core carries nothing but weight. The finish is non-threaded, which is the version most rigs want, because a threaded rod is for screwing accessories onto the rod itself while a plain rod is for clamping onto it.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;line-height:1.85;color:#333;margin:0 0 20px 0;\"\u003eLength is a decision, not an afterthought, so the set is graded rather than fixed: four, six, eight, nine, and twelve inches, in pairs. A twelve inch pair reaches past a matte box on a long lens; a four inch pair is what a compact mirrorless build actually needs, and buying twelve inches for a small body means carrying an overhang that fouls a gimbal. Each pair ships from either the United States or China Mainland, and the model numbers, 1871, 1872, 870, 1690, 851, are SmallRig part numbers rather than marketing labels, which makes reordering the same length a matter of reading a number.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;line-height:1.8;color:#555;font-style:italic;margin:26px 0 0 0;\"\u003eA rig is not built to look professional. It is built so the shot does not move when it should not.\u003c\/p\u003e\n\u003c\/div\u003e\u003chr style=\"margin:34px 0;border:0;border-top:1px solid #ececec;\"\u003e\u003cdiv class=\"product-specs\" style=\"margin-top:32px;\"\u003e\n\u003ch3 style=\"font-size:19px;letter-spacing:.04em;text-transform:uppercase;margin:0 0 14px 0;color:#1a1a1a;\"\u003eRod Specification\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003eDiameter\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  15mm, industry standard\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003eMaterial\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  Carbon fibre tube, hollow wall\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003eType\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  Non-threaded, clamp mount\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003eLengths\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  4, 6, 8, 9 and 12 inches (approx. 100, 150, 200, 230 and 300mm)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003eQuantity\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  2 rods per set\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003eModel Numbers\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  1871 (4in), 1872 (6in), 870 (8in), 1690 (9in), 851 (12in)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003eCompatibility\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  All 15mm rod support systems, follow focus, matte boxes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003eBrand\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  SmallRig\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003eShips From\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  United States or China Mainland\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:11px 0;border-bottom:1px solid #ececec;font-size:15px;line-height:1.6;\"\u003e\n\u003cstrong style=\"color:#1a1a1a;\"\u003ePackaging\u003c\/strong\u003e\u003cspan style=\"color:#4a4a4a;\"\u003e  Retail packaged pair\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-features\" style=\"margin-top:32px;\"\u003e\n\u003ch3 style=\"font-size:19px;letter-spacing:.04em;text-transform:uppercase;margin:0 0 14px 0;color:#1a1a1a;\"\u003eWhy Carbon, Why Hollow\u003c\/h3\u003e\n\u003cp style=\"margin:0 0 12px 0;font-size:15px;line-height:1.7;color:#3a3a3a;\"\u003e\u003cspan style=\"color:#b08d57;\"\u003e✦\u003c\/span\u003e  Genuine 15mm diameter, the industry standard for follow focus and matte box mounting\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px 0;font-size:15px;line-height:1.7;color:#3a3a3a;\"\u003e\u003cspan style=\"color:#b08d57;\"\u003e✦\u003c\/span\u003e  Hollow carbon fibre construction: stiffness where it matters, almost no weight added\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px 0;font-size:15px;line-height:1.7;color:#3a3a3a;\"\u003e\u003cspan style=\"color:#b08d57;\"\u003e✦\u003c\/span\u003e  Non-threaded surface, designed for clamping rather than for threading accessories on\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px 0;font-size:15px;line-height:1.7;color:#3a3a3a;\"\u003e\u003cspan style=\"color:#b08d57;\"\u003e✦\u003c\/span\u003e  Five graded lengths from 4 to 12 inches, sold in matched pairs\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px 0;font-size:15px;line-height:1.7;color:#3a3a3a;\"\u003e\u003cspan style=\"color:#b08d57;\"\u003e✦\u003c\/span\u003e  Part-numbered models (1871, 1872, 870, 1690, 851) so a reorder is unambiguous\u003c\/p\u003e\n\u003cp style=\"margin:0 0 12px 0;font-size:15px;line-height:1.7;color:#3a3a3a;\"\u003e\u003cspan style=\"color:#b08d57;\"\u003e✦\u003c\/span\u003e  Ships from the United States or China Mainland depending on the variant selected\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-applications\" style=\"margin-top:32px;\"\u003e\n\u003ch3 style=\"font-size:19px;letter-spacing:.04em;text-transform:uppercase;margin:0 0 12px 0;color:#1a1a1a;\"\u003eHow Builds Are Configured\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.8;color:#3a3a3a;margin:0;\"\u003eA documentary shooter building a shoulder rig for a long interview day wants twelve inches, because the matte box and the follow focus need to sit forward of a heavy lens. A mirrorless owner adding a single handle and a monitor wants six, because the rig has to stay short enough to fold into a bag. An owner-operator who changes configuration weekly wants two pairs, one long and one short, and treats them as the interchangeable part of the rig rather than committing to one geometry. In each case the rods are the cheapest component that changes how the whole assembly behaves.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\" style=\"margin-top:32px;\"\u003e\n\u003ch3 style=\"font-size:19px;letter-spacing:.04em;text-transform:uppercase;margin:0 0 14px 0;color:#1a1a1a;\"\u003eBuying the Right Pair\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cp style=\"margin:0 0 5px 0;font-size:15px;font-weight:600;color:#1a1a1a;\"\u003eAre these threaded or non-threaded?\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;line-height:1.7;color:#4a4a4a;\"\u003eNon-threaded. A non-threaded rod is clamped by the rod support, which is how follow focuses and matte boxes attach. Threaded rods exist for accessories that screw directly onto the rod end, and they are a different product with a different purpose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cp style=\"margin:0 0 5px 0;font-size:15px;font-weight:600;color:#1a1a1a;\"\u003eHow do I choose between 8, 9 and 12 inches?\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;line-height:1.7;color:#4a4a4a;\"\u003eMeasure from the front of your cage to the front of the matte box, then add two to three centimetres of travel. Nine inches covers most full-frame mirrorless builds with a matte box; twelve is for long lenses and follow focus units that need clearance; eight is the compact compromise. Buy the shortest pair that reaches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cp style=\"margin:0 0 5px 0;font-size:15px;font-weight:600;color:#1a1a1a;\"\u003eWill a carbon rod really hold a follow focus without flexing?\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;line-height:1.7;color:#4a4a4a;\"\u003eYes, at fifteen millimetres with a hollow carbon wall. Flex in a rig usually comes from a loose clamp or a single point of support, not from the rod itself. Support the rod at both ends of the run and the assembly behaves as rigid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cp style=\"margin:0 0 5px 0;font-size:15px;font-weight:600;color:#1a1a1a;\"\u003eIs the weight difference worth it over aluminium?\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;line-height:1.7;color:#4a4a4a;\"\u003eIt matters on a gimbal and on a shoulder rig, where every gram out front has to be counterbalanced behind. On a locked-off tripod build the difference is irrelevant, which is why the honest answer is that carbon earns its price when the rig moves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cp style=\"margin:0 0 5px 0;font-size:15px;font-weight:600;color:#1a1a1a;\"\u003eDo the pairs come as a matched set?\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;line-height:1.7;color:#4a4a4a;\"\u003eYes, two rods per set, same length. Model numbers correspond to lengths, so ordering the same model number again gives you a matching pair rather than an approximation of one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cp style=\"margin:0 0 5px 0;font-size:15px;font-weight:600;color:#1a1a1a;\"\u003eCan I cut them down to a shorter length?\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;line-height:1.7;color:#4a4a4a;\"\u003eYou can, and some owner-operators do, but the cut end exposes the hollow core and needs a clean cap or the clamp will crush the wall over time. Buying the correct length costs less than a ruined pair, which is why the five graded options exist in the first place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:16px;\"\u003e\n\u003cp style=\"margin:0 0 5px 0;font-size:15px;font-weight:600;color:#1a1a1a;\"\u003eWhat else do I need to mount them?\u003c\/p\u003e\n\u003cp style=\"margin:0;font-size:15px;line-height:1.7;color:#4a4a4a;\"\u003eA rod support or baseplate with 15mm clamp openings, which is the standard found on SmallRig cages, most matte boxes, and nearly every follow focus on the market. The rods are the passive part of the system: the clamps do the holding, so budget for a support that tightens properly rather than the cheapest one available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-gallery\" style=\"margin-top:36px;\"\u003e\n\u003cp style=\"margin:14px 0;text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S6822a3e17b39427b84001eff49298dd0F.webp?v=1792565561\" alt=\"Product detail\" style=\"max-width:100%;height:auto;border-radius:6px;\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:14px 0;text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Scc1cbe8d0be34c9f8eba3e274f483908N.webp?v=1792565561\" alt=\"Product detail\" style=\"max-width:100%;height:auto;border-radius:6px;\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:14px 0;text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S36090a83cb294c4c89e7c3b1a80142061.webp?v=1792565561\" alt=\"Product detail\" style=\"max-width:100%;height:auto;border-radius:6px;\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:14px 0;text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sf0fa65e108a345b98b154a7c89235168G.webp?v=1792565561\" alt=\"Product detail\" style=\"max-width:100%;height:auto;border-radius:6px;\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:14px 0;text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sb3c5c4b8ee98400c91eaaffcda076b808.webp?v=1792565561\" alt=\"Product detail\" style=\"max-width:100%;height:auto;border-radius:6px;\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:14px 0;text-align:center;\"\u003e\u003cimg 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src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Saf0165219b254f3680f8455034c8a28dk.webp?v=1792565561\" alt=\"Product detail\" style=\"max-width:100%;height:auto;border-radius:6px;\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:14px 0;text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sc4b42786166448b7b4c68f5163036f897.webp?v=1792565561\" alt=\"Product detail\" style=\"max-width:100%;height:auto;border-radius:6px;\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:14px 0;text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S3a49b94e8f344189b8265cea56d25977y.webp?v=1792565561\" alt=\"Product detail\" style=\"max-width:100%;height:auto;border-radius:6px;\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin:14px 0;text-align:center;\"\u003e\u003cimg 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support.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"SmallRig\"},\"sku\":\"SR-15MM-CF\",\"image\":\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S6822a3e17b39427b84001eff49298dd0F.webp?v=1792565561\",\"url\":\"https:\/\/eastsupplier.com\/products\/the-rig-spine-smallrig-15mm-carbon-fiber-rods\",\"offers\":{\"@type\":\"Offer\",\"url\":\"https:\/\/eastsupplier.com\/products\/the-rig-spine-smallrig-15mm-carbon-fiber-rods\",\"priceCurrency\":\"USD\",\"price\":\"43.92\",\"availability\":\"https:\/\/schema.org\/InStock\",\"itemCondition\":\"https:\/\/schema.org\/NewCondition\",\"seller\":{\"@type\":\"Organization\",\"name\":\"EastSupplier\"}},\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.75\",\"reviewCount\":\"4\"}}\n\u003c\/script\u003e","brand":"EastSupplier Platform","offers":[{"title":"12 inches 851 \/ United States","offer_id":68210658705631,"sku":"32854699427-12 inches 851-United 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