{"product_id":"bravvos-crank-1pce-16-51-5mm-with-pin","title":"Bravvos Crank 1Pce 16'' 51.5Mm With Pin","description":"\u003ch2 data-end=\"148\" data-section-id=\"1b387ru\" data-start=\"131\"\u003e????️ What it is\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"309\" data-start=\"149\"\u003eThis is a \u003cstrong data-end=\"191\" data-start=\"159\"\u003eone-piece crank (OPC) system\u003c\/strong\u003e, meaning the crank arms and axle are all part of a single bent steel shaft. It’s an older but still common design on:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"380\" data-start=\"310\"\u003e\r\n\t\u003cli data-end=\"329\" data-section-id=\"tusmiw\" data-start=\"310\"\u003e16” kids’ bikes\u003c\/li\u003e\r\n\t\u003cli data-end=\"355\" data-section-id=\"1mfdw3t\" data-start=\"330\"\u003eBasic BMX-style bikes\u003c\/li\u003e\r\n\t\u003cli data-end=\"380\" data-section-id=\"vd87st\" data-start=\"356\"\u003eEntry-level cruisers\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp data-end=\"480\" data-start=\"382\"\u003eIt rotates through a simple \u003cstrong data-end=\"448\" data-start=\"410\"\u003ecup-and-ball bottom bracket system\u003c\/strong\u003e, not modern cartridge bearings.\u003c\/p\u003e\r\n\r\n\u003chr data-end=\"485\" data-start=\"482\"\u003e\r\n\u003ch2 data-end=\"512\" data-section-id=\"1t694pa\" data-start=\"487\"\u003e???? Key specs explained\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"545\" data-start=\"514\"\u003e\u003cstrong data-end=\"543\" data-start=\"514\"\u003e???? 16” bike compatibility\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"691\" data-start=\"546\"\u003e\r\n\t\u003cli data-end=\"593\" data-section-id=\"acfhov\" data-start=\"546\"\u003eDesigned specifically for small-wheel bikes\u003c\/li\u003e\r\n\t\u003cli data-end=\"691\" data-section-id=\"y9db8v\" data-start=\"594\"\u003eUsually paired with kids’ frames where simplicity and durability matter more than performance\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"696\" data-start=\"693\"\u003e\r\n\u003cp data-end=\"727\" data-start=\"698\"\u003e\u003cstrong data-end=\"725\" data-start=\"698\"\u003e⚙️ 1-piece crank design\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"915\" data-start=\"728\"\u003e\r\n\t\u003cli data-end=\"769\" data-section-id=\"3vusym\" data-start=\"728\"\u003eCrank arms + axle are one solid piece\u003c\/li\u003e\r\n\t\u003cli data-end=\"838\" data-section-id=\"zvn4en\" data-start=\"770\"\u003ePros:\r\n\t\u003cul data-end=\"838\" data-start=\"780\"\u003e\r\n\t\t\u003cli data-end=\"806\" data-section-id=\"1d4ktly\" data-start=\"780\"\u003eVery strong and simple\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"838\" data-section-id=\"1b43v0l\" data-start=\"809\"\u003eCheap and easy to replace\u003c\/li\u003e\r\n\t\u003c\/ul\u003e\r\n\t\u003c\/li\u003e\r\n\t\u003cli data-end=\"915\" data-section-id=\"r2h62p\" data-start=\"839\"\u003eCons:\r\n\t\u003cul data-end=\"915\" data-start=\"849\"\u003e\r\n\t\t\u003cli data-end=\"860\" data-section-id=\"1vfemgc\" data-start=\"849\"\u003eHeavier\u003c\/li\u003e\r\n\t\t\u003cli data-end=\"915\" data-section-id=\"18i24xa\" data-start=\"863\"\u003eLess efficient than modern multi-piece cranksets\u003c\/li\u003e\r\n\t\u003c\/ul\u003e\r\n\t\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"920\" data-start=\"917\"\u003e\r\n\u003cp data-end=\"958\" data-start=\"922\"\u003e\u003cstrong data-end=\"956\" data-start=\"922\"\u003e???? 51.5 mm bottom bracket size\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1098\" data-start=\"959\"\u003e\r\n\t\u003cli data-end=\"1023\" data-section-id=\"1k4jd68\" data-start=\"959\"\u003eRefers to the \u003cstrong data-end=\"1021\" data-start=\"975\"\u003eframe shell width standard for OPC systems\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"1098\" data-section-id=\"hxtyph\" data-start=\"1024\"\u003eMust match your frame exactly or the crank won’t fit or spin correctly\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1103\" data-start=\"1100\"\u003e\r\n\u003cp data-end=\"1132\" data-start=\"1105\"\u003e\u003cstrong data-end=\"1130\" data-start=\"1105\"\u003e???? “With pin” feature\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1287\" data-start=\"1133\"\u003e\r\n\t\u003cli data-end=\"1215\" data-section-id=\"fgvyyj\" data-start=\"1133\"\u003eIncludes retaining pin used to secure or align the crank in the bottom bracket\u003c\/li\u003e\r\n\t\u003cli data-end=\"1287\" data-section-id=\"11j4uz2\" data-start=\"1216\"\u003eImportant for stability in OPC systems (prevents loosening over time)\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1292\" data-start=\"1289\"\u003e\r\n\u003cp data-end=\"1335\" data-start=\"1294\"\u003e\u003cstrong data-end=\"1333\" data-start=\"1294\"\u003e???? Chrome-plated steel construction\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1491\" data-start=\"1336\"\u003e\r\n\t\u003cli data-end=\"1371\" data-section-id=\"q8pp5j\" data-start=\"1336\"\u003eStrong and resistant to bending\u003c\/li\u003e\r\n\t\u003cli data-end=\"1423\" data-section-id=\"1p69nz4\" data-start=\"1372\"\u003eDesigned for abuse (kids riding, knocks, drops)\u003c\/li\u003e\r\n\t\u003cli data-end=\"1491\" data-section-id=\"1qv5eym\" data-start=\"1424\"\u003eHeavier than aluminium but far more durable at this price level\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"1496\" data-start=\"1493\"\u003e\r\n\u003ch2 data-end=\"1522\" data-section-id=\"6dimzn\" data-start=\"1498\"\u003e???? Where it fits best\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"1586\" data-start=\"1523\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003eBravvos\u003c\/span\u003e positions this crank for:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"1685\" data-start=\"1587\"\u003e\r\n\t\u003cli data-end=\"1609\" data-section-id=\"1ve5tti\" data-start=\"1587\"\u003eKids’ 16” bicycles\u003c\/li\u003e\r\n\t\u003cli data-end=\"1642\" data-section-id=\"1jls8xb\" data-start=\"1610\"\u003eBudget BMX or beginner bikes\u003c\/li\u003e\r\n\t\u003cli data-end=\"1685\" data-section-id=\"103scdd\" data-start=\"1643\"\u003eReplacement of bent or worn OPC cranks\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp data-end=\"1756\" data-start=\"1687\"\u003eTypical crank arm length: \u003cstrong data-end=\"1727\" data-start=\"1713\"\u003e114–127 mm\u003c\/strong\u003e, depending on bike geometry.\u003c\/p\u003e\r\n\r\n\u003chr data-end=\"1761\" data-start=\"1758\"\u003e\r\n\u003ch2 data-end=\"1804\" data-section-id=\"ad00g7\" data-start=\"1763\"\u003e⚠️ Compatibility checklist (important)\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"1828\" data-start=\"1805\"\u003eBefore buying, confirm:\u003c\/p\u003e\r\n\r\n\u003cul data-end=\"2052\" data-start=\"1829\"\u003e\r\n\t\u003cli data-end=\"1903\" data-section-id=\"gpkrg\" data-start=\"1829\"\u003e✔ Your bike uses a \u003cstrong data-end=\"1901\" data-start=\"1850\"\u003eone-piece crank (not square taper or cartridge)\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"1958\" data-section-id=\"uhr0g7\" data-start=\"1904\"\u003e✔ Bottom bracket shell is \u003cstrong data-end=\"1956\" data-start=\"1932\"\u003e51.5 mm OPC standard\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"2009\" data-section-id=\"1h4z14w\" data-start=\"1959\"\u003e✔ Frame is designed for \u003cstrong data-end=\"2007\" data-start=\"1985\"\u003e16” wheel geometry\u003c\/strong\u003e\n\u003c\/li\u003e\r\n\t\u003cli data-end=\"2052\" data-section-id=\"1kqvmpx\" data-start=\"2010\"\u003e✔ Chainline matches your current setup\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003chr data-end=\"2057\" data-start=\"2054\"\u003e\r\n\u003ch2 data-end=\"2076\" data-section-id=\"pmvb6c\" data-start=\"2059\"\u003e???? Bottom line\u003c\/h2\u003e\r\n\r\n\u003cp data-end=\"2317\" data-start=\"2077\"\u003eThe Bravvos 1-piece 16” crank is a \u003cstrong data-end=\"2148\" data-start=\"2112\"\u003ebasic but tough replacement part\u003c\/strong\u003e for kids’ and entry-level bikes. It’s not performance-oriented, but it is \u003cstrong data-end=\"2264\" data-start=\"2223\"\u003esimple, durable, and easy to maintain\u003c\/strong\u003e, which is exactly what OPC systems are designed for.\u003c\/p\u003e\r\n","brand":"Bravvos","offers":[{"title":"Default Title","offer_id":48133855215838,"sku":"CRA009","price":90.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1242\/8790\/files\/21739_20283-BSC-Products-8-1-1-512x512-2.webp?v=1776692999","url":"https:\/\/online-bicycle-shop.co.za\/products\/bravvos-crank-1pce-16-51-5mm-with-pin","provider":"Online Bicycle Shop","version":"1.0","type":"link"}