{"product_id":"wrcca-tires-mini-sporty-pro","title":"WRCCA Tires (Mini, Sporty, Pro)","description":"\u003ch1 role=\"main\" aria-label=\"productname\" class=\"page_headers\" itemprop=\"name\"\u003eRock Bumps - 1.9\", 4.25\" OD - Comp Tire\u003c\/h1\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eWhen it comes to competition, it’s hard to beat a pin style tire. JConcepts introduces the Rock Bumps tires specifically designed for 1.9” Sporty Mini competition. The name suggests similarities to a popular dirt and all-terrain tire used for years in the #gojconcepts line-up; the Goose Bumps. The hefty surface area of the pins, combined with horizontal and vertical connector bars bridge together walls of grip to flex, pivot, and conform to just about any terrain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe overall diameter of 4.25” provide ample ground clearance, and the narrow 1.5” carcass and contact patch area increases the pressure applied to each pin to provide jumbo patterns of traction. The center of the tire features a large lug to get the heavy lifting started; the relief edges provide clearance to the next closest pins. Angular traction bars on the edges start the sidewall transition to an open shield feature to keep surface area edges present in the design.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe narrow tire carcass, with continuous contour, has major flex characteristics providing even greater conformity to rocks, holes, bumps, and just about anything in its path. Elaborate radial ribs and an array of additional bars on the sidewall of the tire aid in anti-slip, and outside carcass thickening. Embossed JConcepts logos, item name, part number, and sizing help identify the performance item and heritage of the design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eMolded in the exclusive JConcepts sticky green compound, the Rock Bumps tires include React open cell inserts that have a medium feel and fills the tire appropriately to conditions. The JConcepts tires are packaged and tagged with holographic decal on the rear of the packaging to help customers identify authentic products. The JConcepts team builds, tests, and travels the world to support the brand and gathers valuable driver feedback in search of the best appearing and performance items on the market.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe product is designed in the U.S.A. and always backed by JConcepts customer service, supported, and developed by professionals with style. Look for reputable dealers and distributors and demand authentic products – choose JConcepts\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eFeatures:\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eOriginal, Rock Bumps pin \/ bar design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eFits 1.9” Sporty Mini competition wheel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eSporty, 4.25” diameter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003e1.5” narrow carcass width\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eHefty surface area of pins\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eHorizontal and vertical traction bars\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eDense sidewall radial pattern\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eOpen sidewall shield for additional edges\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eAuthentic JConcepts lettering and logos\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eExclusive sticky green compound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\n\u003cspan\u003eIncludes React open cell inserts\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 itemprop=\"name\" class=\"page_headers\" aria-label=\"productname\" role=\"main\"\u003eBoss - 1.9\", 4.25\" OD - Comp Tire\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eA new design from the JConcepts laboratory is the Boss tire available in sticky green compound. The narrow 1.38” carcass platform, 4.25” overall diameter designed especially for 1.9” wheels make this a legitimate threat in the Sporty Mini class. The tread layout is unique featuring a base pallet with overlaying bar tread to provide the flexibility necessary to grab, hold, and conquer a variety of terrain. JConcepts has inspired a new style featuring H and + versioned tread instances bringing hefty and flexy together.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eA continuous carcass with minimal lettering and logo height looks strong while allowing competition friendly slide and grind. The pins themselves have radius built in giving an arch to the tread in the radial orientation and a bridge structure in the horizontal direction. The newly designed block and bar layout provides forward flex grip with sideload stability across the tread. The edges of the pins are held back from the sidewall area to minimize overhang. Exposed sidewall rubber material helps in dry conditions where the sticky compound can assist without hinderance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eEmbossed JConcepts logos, item name, part number, and sizing help identify the performance item and heritage of the design. React open cell inserts have a medium feel and fills the tire appropriately to conditions. The JConcepts tires are packaged and tagged with holographic decal on the rear of the packaging to help customers identify authentic products. The JConcepts team builds, tests, and travels the world to support the brand and gathers valuable driver feedback in search of the best appearing and performance items on the market.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe product is designed in the U.S.A. and always backed by JConcepts customer service, supported, and developed by professionals with style. Look for reputable dealers and distributors and demand authentic products – choose JConcepts\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eFeatures:\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eOriginal, Boss tread pattern\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eFits 1.9” Sporty Mini competition wheel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eSporty, 4.25” diameter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003e1.38” narrow carcass width\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eHorizontal and vertical flexible tread\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eUnique block and bar pattern\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eMinimal tread overhang\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eFriendly slide and grind sidewall\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eAuthentic JConcepts lettering and logos\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eExclusive sticky green compound\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eIncludes React open cell inserts\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1 itemprop=\"name\" class=\"page_headers\" aria-label=\"productname\" role=\"main\" style=\"text-align: left;\"\u003eFYR Crawler Tire - 1.9\" | 4.25\" OD | 1.5\" Width\u003c\/h1\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003eThe task was simple, creating one of the most detailed crawling tires of all-time without any deep pocketing while applying it to a new competition width. The result, the FYR “Fire” tire has all the latest elements and includes some industry first development such as the 1.5” width carcass. The new tire starts with a traditional 1.9 bead mounting diameter to satisfy the industry standard and the demands of the most popular wheel size in the crawler segment. The carcass has a continuous flow of wall thickness and pillow-top feel against the insert.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe tread itself is where magic happens on this 4.25 OD tire. The individual arrangements of tread plots rise in a series of directional value providing climbing support from a host of different angles. Surface recess areas are very shallow but give just enough flexibility to the top to conform to terrain. Very faint radial ribs are in 3 key areas across the carcass in very important traction zones. The pie shaped recessed spaces on the tread are loaded with detail even extending to the sidewall lugging.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eTurning attention to the sidewall, it’s glorious. Tread plots which resemble knives, boots, and other subliminal items on the sidewall reign supreme. A new level of detail resides in the sidewall lugging where all the surfaces have small cavities in a host of different patterns and arrangements. Very light background texture rests behind the sidewall in a hidden tattoo like fashion. JConcepts lettering is embossed showing brand authority on the sidewall along with the part number, dimensions, and tire naming.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe FYR tire includes firm “open cell” foam inserts to support the ride and packaged and sealed with authentic JConcepts packaging with holographic badge for identification. The JConcepts sticky green compound is a favorite among the RC industry giving just the correct amount of flex and dampen release to support weight and hold traction in difficult situations. The tire is designed for popular 1.9” bead mounting diameter plastic, aluminum, and steel wheels on the market.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eThe JConcepts team builds, tests, and travels the world to support the brand and gathers valuable driver feedback in search of the best appearing and performance items on the market. The product is manufactured with high precision and always backed by JConcepts customer service, supported, and developed by professionals with style, licensing, and authenticity. Look for reputable dealers and distributors and demand authentic and licensed products – choose JConcepts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eFeatures:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"list-style-type: none;\"\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eFYR “Fire” large thread plots, shallow depth cavities\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eFits industry standard 1.9” diameter wheels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eTrendy, industry leading 1.5” narrow width\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eClass 2, and Mini Comp, 4.25” OD competition size\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eBoot and knife appearing sidewall lugging, maximum recess\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eHidden tattoo like detail under tread and lugging for extra depth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eJConcepts sidewall logo, dimensions, and product name\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eContinuous thickness carcass for clean profile\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eIncludes firm open cell insert\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoListParagraph\"\u003e\u003cspan\u003eAvailable in JConcepts sticky green compound\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JConcepts","offers":[{"title":"Boss 1.9x4.25","offer_id":52823274488105,"sku":"4157-02","price":27.75,"currency_code":"USD","in_stock":false},{"title":"Rock Bumps 1.9x4.25","offer_id":52823274520873,"sku":"4156-02","price":27.75,"currency_code":"USD","in_stock":true},{"title":"Rock Bumps 2.2x5.75","offer_id":52823274553641,"sku":"4072-02","price":37.4,"currency_code":"USD","in_stock":true},{"title":"FYR 1.9x4.25","offer_id":52978160763177,"sku":"4205-02","price":27.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0765\/0921\/7065\/files\/Screenshot2026-03-11200834.png?v=1773274152","url":"https:\/\/lircandmore.com\/products\/wrcca-tires-mini-sporty-pro","provider":"LI RC \u0026 More LLC","version":"1.0","type":"link"}