{"product_id":"pro647900-pro-line-rock-tek-1-9-rock-crawler-dual-stage-foam-brass-weight-108g-ea-2-108g-ea","title":"PRO647900 Pro-Line Rock-Tek 1.9\" Rock Crawler Dual Stage Foam \u0026 Brass Weight (108g ea) (2) (108g ea)","description":"\u003cdiv class=\"_description-left\"\u003e\n\u003ch2\u003eRock-Tek Weight System Overview:\u003c\/h2\u003e\n\u003cp\u003eStop fighting gravity the old way — Rock-Tek transforms crawler performance with a magnetically controlled, non-rotating weight system that plants mass exactly where it counts, delivering unmatched stability, sharper response, and smarter control without the drawbacks of traditional brass setups.\u003c\/p\u003e\n\u003cdiv class=\"lazyframe lazyframe--loaded\" data-vendor=\"youtube\" data-src=\"https:\/\/www.youtube.com\/embed\/xlBRsJBVka8\u0026amp;t=268s?rel=0\" data-ratio=\"16:9\" data-thumbnail=\"https:\/\/img.youtube.com\/vi\/xlBRsJBVka8\/hqdefault.jpg\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eAbout the Rock-Tek 1.9\" Weight System\u003c\/h3\u003e\n\u003cbr\u003e\n\u003ch4\u003eSmart Weight System\u003c\/h4\u003e\n\u003cp\u003eThe Rock-Tek 1.9\" system redefines crawler performance with a magnetically stabilized, bearing-supported design that keeps 108g per wheel locked at bottom-dead-center instead of spinning with the tire. This dramatically lowers the center of gravity without adding harmful rotating mass, reducing driveline strain while improving throttle response, climbing traction, and side-hill stability. By controlling weight dynamics rather than just adding bulk, it delivers maximum CG reduction per gram where it matters most.\u003c\/p\u003e\n\u003ch4\u003eTuned Control\u003c\/h4\u003e\n\u003cp\u003eBuilt for serious 1.9\" crawler setups, Rock-Tek offers a tunable 208g base system with optional add-on weights for precise performance dialing. Drivers can run magnetic stabilization for maximum control or allow free-spin behavior for adaptive terrain response, all while maintaining a clean, scale look inside standard beadlock wheels. With broad compatibility, hidden integration, and advanced weight management, it stands out as a smarter, more efficient upgrade over traditional brass solutions.\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"product-page-features\"\u003e\n\u003cli\u003eMagnetically stabilized weight stays at bottom-dead-center\u003c\/li\u003e\n\u003cli\u003eBearing-supported design reduces rotating mass\u003c\/li\u003e\n\u003cli\u003eImproves climbing traction and side-hill stability\u003c\/li\u003e\n\u003cli\u003eLowers center of gravity more efficiently per gram\u003c\/li\u003e\n\u003cli\u003eTunable 208g base weight system\u003c\/li\u003e\n\u003cli\u003eOptional add-on weights for precise setup\u003c\/li\u003e\n\u003cli\u003eWorks with most 1.9\" beadlock crawler wheels\u003c\/li\u003e\n\u003cli\u003eHidden internal design keeps a clean scale look\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_description-right\"\u003e\n\u003ch3\u003eIncludes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e(2) Rock-Tek 1.9\" Rock Crawler Dual Stage Foam \u0026amp; Brass Weight System\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003e1\/10 Rock Crawlers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Bead Diameter\u003c\/th\u003e\n\u003ctd\u003e1.9in (48.26mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Overall Diameter\u003c\/th\u003e\n\u003ctd\u003e4.76in (120.9mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e1.65in (41.91mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (Each)\u003c\/th\u003e\n\u003ctd\u003e3.8oz (108g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Proline","offers":[{"title":"Default Title","offer_id":52745337110817,"sku":"PRO647900","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/5766\/9665\/files\/pro6479-00.jpg?v=1779299193","url":"https:\/\/997rcraceway.com\/products\/pro647900-pro-line-rock-tek-1-9-rock-crawler-dual-stage-foam-brass-weight-108g-ea-2-108g-ea","provider":"997 RC Raceway","version":"1.0","type":"link"}