{"product_id":"bravvos-crank-1pce-20-43mm-152mm-w-pin","title":"Bravvos Crank 1 Piece 20 43Mm 152Mm W Pin","description":"\u003ch2 data-end=\"280\" data-section-id=\"1b387ru\" data-start=\"263\"\u003e????️ What it is\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"443\" data-start=\"281\"\u003eThis is a \u003cstrong data-end=\"345\" data-start=\"291\"\u003eone-piece (Ashtabula-style) crankset for 20” bikes\u003c\/strong\u003e, but it uses the \u003cstrong data-end=\"404\" data-start=\"363\"\u003esmaller 43 mm bottom bracket standard\u003c\/strong\u003e, not the common 51.5 mm American size.\u003c\/p\u003e\r\n\r\n\u003cp data-end=\"458\" data-start=\"445\"\u003eIt’s used on:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"548\" data-start=\"459\"\u003e\r\n\t\u003cli data-end=\"483\" data-section-id=\"1xvxrkp\" data-start=\"459\"\u003eSome kids’ 20” bikes\u003c\/li\u003e\r\n\t\u003cli data-end=\"510\" data-section-id=\"145ytjq\" data-start=\"484\"\u003eBudget BMX-style bikes\u003c\/li\u003e\r\n\t\u003cli data-end=\"548\" data-section-id=\"n96pph\" data-start=\"511\"\u003eOlder or regional frame standards\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"553\" data-start=\"550\"\u003e\r\n\u003ch2 data-end=\"580\" data-section-id=\"1t694pa\" data-start=\"555\"\u003e???? Key specs explained\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"605\" data-start=\"582\"\u003e\u003cstrong data-end=\"605\" data-start=\"582\"\u003e???? 20-inch bike use\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"696\" data-start=\"606\"\u003e\r\n\t\u003cli data-end=\"638\" data-section-id=\"xqs7kr\" data-start=\"606\"\u003eBuilt for BMX\/kids’ geometry\u003c\/li\u003e\r\n\t\u003cli data-end=\"696\" data-section-id=\"7q4voi\" data-start=\"639\"\u003e152 mm crank arms → longer leverage than 16” versions\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"701\" data-start=\"698\"\u003e\r\n\u003cp data-end=\"771\" data-start=\"703\"\u003e\u003cstrong data-end=\"739\" data-start=\"703\"\u003e⚙️ 43 mm OPC bottom bracket size\u003c\/strong\u003e\u003cbr\u003e\r\nThis is the biggest difference:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"895\" data-start=\"773\"\u003e\r\n\t\u003cli data-end=\"813\" data-section-id=\"1s9y8v4\" data-start=\"773\"\u003e✔ 43 mm = \u003cstrong data-end=\"813\" data-start=\"785\"\u003esmall OPC shell standard\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"862\" data-section-id=\"1ias6sp\" data-start=\"814\"\u003e✔ 51.5 mm = \u003cstrong data-end=\"862\" data-start=\"828\"\u003eAmerican (larger) OPC standard\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"895\" data-section-id=\"uefxxw\" data-start=\"863\"\u003e❗ They are NOT interchangeable\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp data-end=\"922\" data-start=\"897\"\u003eIf you fit the wrong one:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1018\" data-start=\"923\"\u003e\r\n\t\u003cli data-end=\"953\" data-section-id=\"16t9yxi\" data-start=\"923\"\u003eIt will not seat correctly\u003c\/li\u003e\r\n\t\u003cli data-end=\"983\" data-section-id=\"1pfm3zi\" data-start=\"954\"\u003eCrank will bind or wobble\u003c\/li\u003e\r\n\t\u003cli data-end=\"1018\" data-section-id=\"1o2abzi\" data-start=\"984\"\u003eBearings will wear out quickly\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1023\" data-start=\"1020\"\u003e\r\n\u003cp data-end=\"1050\" data-start=\"1025\"\u003e\u003cstrong data-end=\"1050\" data-start=\"1025\"\u003e???? Includes drive pin\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1247\" data-start=\"1051\"\u003e\r\n\t\u003cli data-end=\"1103\" data-section-id=\"gv7j8x\" data-start=\"1051\"\u003eThis version uses a \u003cstrong data-end=\"1103\" data-start=\"1073\"\u003eretaining\/drive pin system\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"1188\" data-section-id=\"1es9efn\" data-start=\"1104\"\u003eThe pin:\r\n\t\u003cul data-end=\"1188\" data-start=\"1117\"\u003e\r\n\t\t\u003cli data-end=\"1142\" data-section-id=\"1vhzooq\" data-start=\"1117\"\u003eLocks crank alignment\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"1188\" data-section-id=\"1g9rtlh\" data-start=\"1145\"\u003eHelps transfer torque to the chainwheel\u003c\/li\u003e\r\n\t\u003c\/ul\u003e\r\n\t\u003c\/li\u003e\r\n\t\u003cli data-end=\"1247\" data-section-id=\"ejnghr\" data-start=\"1189\"\u003eOlder-school OPC design compared to “W\/O pin” versions\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1252\" data-start=\"1249\"\u003e\r\n\u003cp data-end=\"1289\" data-start=\"1254\"\u003e\u003cstrong data-end=\"1289\" data-start=\"1254\"\u003e???? Steel Ashtabula construction\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1409\" data-start=\"1290\"\u003e\r\n\t\u003cli data-end=\"1332\" data-section-id=\"1dfvfa2\" data-start=\"1290\"\u003eOne-piece forged steel crank + spindle\u003c\/li\u003e\r\n\t\u003cli data-end=\"1372\" data-section-id=\"q4n5yy\" data-start=\"1333\"\u003eVery strong, very basic, very heavy\u003c\/li\u003e\r\n\t\u003cli data-end=\"1409\" data-section-id=\"1pbn9w\" data-start=\"1373\"\u003eBuilt for abuse, not performance\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1414\" data-start=\"1411\"\u003e\r\n\u003cp data-end=\"1445\" data-start=\"1416\"\u003e\u003cstrong data-end=\"1445\" data-start=\"1416\"\u003e???? Pedal threading (1\/2\")\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1525\" data-start=\"1446\"\u003e\r\n\t\u003cli data-end=\"1478\" data-section-id=\"5dxshz\" data-start=\"1446\"\u003eStandard BMX\/kids pedal size\u003c\/li\u003e\r\n\t\u003cli data-end=\"1525\" data-section-id=\"1n1116m\" data-start=\"1479\"\u003eSmaller than adult bikes (which use 9\/16”)\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1530\" data-start=\"1527\"\u003e\r\n\u003ch2 data-end=\"1556\" data-section-id=\"6dimzn\" data-start=\"1532\"\u003e???? Where it fits best\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"1613\" data-start=\"1557\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003eBravvos\u003c\/span\u003e intended this for:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1740\" data-start=\"1614\"\u003e\r\n\t\u003cli data-end=\"1653\" data-section-id=\"z6770h\" data-start=\"1614\"\u003eSmaller 20” bikes with 43 mm shells\u003c\/li\u003e\r\n\t\u003cli data-end=\"1682\" data-section-id=\"18m1bwh\" data-start=\"1654\"\u003eKids’ BMX-style bicycles\u003c\/li\u003e\r\n\t\u003cli data-end=\"1740\" data-section-id=\"bgbpb2\" data-start=\"1683\"\u003eOlder or budget frames using the smaller OPC standard\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1745\" data-start=\"1742\"\u003e\r\n\u003ch2 data-end=\"1783\" data-section-id=\"17g6o3p\" data-start=\"1747\"\u003e⚠️ Critical compatibility warning\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"1836\" data-start=\"1784\"\u003eYou now have two very different 20” crank standards:\u003c\/p\u003e\r\n\r\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\r\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\r\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"2033\" data-start=\"1838\"\u003e\r\n\t\u003cthead data-end=\"1881\" data-start=\"1838\"\u003e\r\n\t\t\u003ctr data-end=\"1881\" data-start=\"1838\"\u003e\r\n\t\t\t\u003cth data-col-size=\"sm\" data-end=\"1845\" data-start=\"1838\"\u003eType\u003c\/th\u003e\r\n\t\t\t\u003cth data-col-size=\"sm\" data-end=\"1858\" data-start=\"1845\"\u003eShell size\u003c\/th\u003e\r\n\t\t\t\u003cth data-col-size=\"sm\" data-end=\"1864\" data-start=\"1858\"\u003ePin\u003c\/th\u003e\r\n\t\t\t\u003cth data-col-size=\"sm\" data-end=\"1881\" data-start=\"1864\"\u003eCompatibility\u003c\/th\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\u003c\/thead\u003e\r\n\t\u003ctbody data-end=\"2033\" data-start=\"1925\"\u003e\r\n\t\t\u003ctr data-end=\"1974\" data-start=\"1925\"\u003e\r\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1936\" data-start=\"1925\"\u003eThis one\u003c\/td\u003e\r\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1948\" data-start=\"1936\"\u003e\u003cstrong data-end=\"1947\" data-start=\"1938\"\u003e43 mm\u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1956\" data-start=\"1948\"\u003e✔ Yes\u003c\/td\u003e\r\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1974\" data-start=\"1956\"\u003eSmaller frames\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\t\u003ctr data-end=\"2033\" data-start=\"1975\"\u003e\r\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"1989\" data-start=\"1975\"\u003eEarlier one\u003c\/td\u003e\r\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"2003\" data-start=\"1989\"\u003e\u003cstrong data-end=\"2002\" data-start=\"1991\"\u003e51.5 mm\u003c\/strong\u003e\u003c\/td\u003e\r\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"2010\" data-start=\"2003\"\u003e✖ No\u003c\/td\u003e\r\n\t\t\t\u003ctd data-col-size=\"sm\" data-end=\"2033\" data-start=\"2010\"\u003eAmerican OPC frames\u003c\/td\u003e\r\n\t\t\u003c\/tr\u003e\r\n\t\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\r\n\u003cp data-end=\"2104\" data-start=\"2035\"\u003e???? They are \u003cstrong data-end=\"2104\" data-start=\"2047\"\u003enot interchangeable even if both are “20 inch” cranks\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003chr data-end=\"2109\" data-start=\"2106\"\u003e\r\n\u003ch2 data-end=\"2128\" data-section-id=\"pmvb6c\" data-start=\"2111\"\u003e???? Bottom line\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"2353\" data-start=\"2129\"\u003eThis Bravvos crank is a \u003cstrong data-end=\"2219\" data-start=\"2153\"\u003esmall-frame 20” OPC crankset with a pin-based retention system\u003c\/strong\u003e. It’s simple, strong, and cheap—but it only fits \u003cstrong data-end=\"2300\" data-start=\"2269\"\u003e43 mm bottom bracket frames\u003c\/strong\u003e, which is the key detail that determines everything.\u003c\/p\u003e\r\n","brand":"Bravvos","offers":[{"title":"Default Title","offer_id":46209010008286,"sku":"CRA013","price":85.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1242\/8790\/files\/11692_744ef158a64ff004e3b46166bba55aa1_540x540_c4d8bddd-da04-424a-bcd1-90b2a5b8e415.jpg?v=1776698549","url":"https:\/\/onlino-bicycle-shopco.shop\/products\/bravvos-crank-1pce-20-43mm-152mm-w-pin","provider":"Online Bicycle Shop","version":"1.0","type":"link"}