{"id":25043,"date":"2026-05-10T19:00:00","date_gmt":"2026-05-10T19:00:00","guid":{"rendered":"https:\/\/rctracks.io\/?p=25043"},"modified":"2026-05-18T08:55:25","modified_gmt":"2026-05-18T14:55:25","slug":"jconcepts-new-release-rock-bumps-comp-tire","status":"publish","type":"post","link":"https:\/\/rctracks.io\/es\/rc-products\/rc-tire\/2026\/05\/jconcepts-new-release-rock-bumps-comp-tire\/","title":{"rendered":"JConcepts New Release \u2013 Rock Bumps Comp Tire"},"content":{"rendered":"<p>When it comes to competition, it\u2019s hard to beat a pin style tire. JConcepts introduces the Rock Bumps tires specifically designed for 1.9\u201d Sporty Mini competition.<\/p>\n<p>The name suggests similarities to a popular dirt and all-terrain tire used for years in the #gojconcepts line-up; the Goose Bumps.<\/p>\n<p>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.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blog.jconcepts.net\/wp-content\/uploads\/2026\/03\/4156_3.jpg\" \/><\/p>\n<p>The overall diameter of 4.25\u201d provide ample ground clearance, and the narrow 1.5\u201d carcass and contact patch area increases the pressure applied to each pin to provide jumbo patterns of traction.<\/p>\n<p>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.<\/p>\n<p>Angular traction bars on the edges start the sidewall transition to an open shield feature to keep surface area edges present in the design.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blog.jconcepts.net\/wp-content\/uploads\/2026\/03\/4156_1.jpg\" \/><\/p>\n<p>The 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.<\/p>\n<p>Elaborate radial ribs and an array of additional bars on the sidewall of the tire aid in anti-slip, and outside carcass thickening.<\/p>\n<p>Embossed JConcepts logos, item name, part number, and sizing help identify the performance item and heritage of the design.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blog.jconcepts.net\/wp-content\/uploads\/2026\/03\/4156_2.jpg\" \/><\/p>\n<p>Molded 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.<\/p>\n<p>The JConcepts tires are packaged and tagged with holographic decal on the rear of the packaging to help customers identify authentic products.<\/p>\n<p>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.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/blog.jconcepts.net\/wp-content\/uploads\/2026\/03\/4156_4.jpg\" \/><\/p>\n<p>The 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 \u2013 choose JConcepts<\/p>\n<p><strong>Features:<\/strong><br \/>\n\u2022 Original, Rock Bumps pin \/ bar design<br \/>\n\u2022 Fits 1.9\u201d Sporty Mini competition wheel<br \/>\n\u2022 Sporty, 4.25\u201d diameter<br \/>\n\u2022 1.5\u201d narrow carcass width<br \/>\n\u2022 Hefty surface area of pins<br \/>\n\u2022 Horizontal and vertical traction bars<br \/>\n\u2022 Dense sidewall radial pattern<br \/>\n\u2022 Open sidewall shield for additional edges<br \/>\n\u2022 Authentic JConcepts lettering and logos<br \/>\n\u2022 Exclusive sticky green compound<br \/>\n\u2022 Includes React open cell inserts<\/p>\n<p><strong>Rock Bumps \u2013 green compound (Fits \u2013 1.9\u2033 wheel 4.25\u2033 OD)<\/strong><br \/>\n<a href=\"https:\/\/jconcepts.net\/rock-bumps-sporty-mini-comp-tire\" target=\"_blank\" rel=\"noopener\">Part# 4156-02<\/a><br \/>\nUPC Code \u2013 845937035653<br \/>\nRetail price \u2013 $37.00<br \/>\nMap price \u2013 $27.75<br \/>\nCategory \u2013 1:10th crawler<br \/>\n(Fits \u2013 1.9\u201d crawler wheel)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 When it comes to competition, it\u2019s hard to beat a pin style tire. JConcepts introduces the Rock Bumps tires specifically designed [\u2026]<\/p>\n","protected":false},"author":28,"featured_media":25725,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[122,67],"tags":[80],"class_list":["post-25043","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rc-products","category-rc-tire","tag-jconcepts"],"_links":{"self":[{"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/posts\/25043","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/comments?post=25043"}],"version-history":[{"count":0,"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/posts\/25043\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/media\/25725"}],"wp:attachment":[{"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/media?parent=25043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/categories?post=25043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rctracks.io\/es\/wp-json\/wp\/v2\/tags?post=25043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}