{"product_id":"grehua-3-4-bore-sprocket-hub-for-go-karts-drift-trikes-3-16-keyway-steel-with-hardware-kit","title":"GREHUA 3\/4\" Bore Sprocket Hub for Go Karts \u0026 Drift Trikes — 3\/16\" Keyway, Steel with Hardware Kit","description":"\u003cp\u003e\u003cstrong\u003eGREHUA's heavy-duty 3\/4\" bore sprocket hub with a 3\/16\" keyway and full hardware kit is a direct replacement for rear axle sprocket or brake-drum mounting on go karts, drift trikes, mini bikes, ATVs and dune buggies.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you need a dependable hub to secure a sprocket or brake drum to a 3\/4\" round axle, this GREHUA assembly provides a solid steel body, a keyed fit for torque transfer, and the bolts and wrench required for installation. The unit is intended for 4\" and 4-1\/2\" brake drums and common rear-axle sprockets, offering a straightforward swap when a worn or damaged hub needs replacement.\u003c\/p\u003e\n\n\u003ch3\u003eWill this hub fit my axle and sprocket?\u003c\/h3\u003e\n\u003cp\u003eIt fits a standard 3\/4\" diameter round axle and uses a 3\/16\" keyway to lock the hub to the shaft, matching many small-vehicle drivetrains. Confirm the existing axle diameter and key size before ordering to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 3\/4\" (0.75\") round axle rods\u003c\/li\u003e\n  \u003cli\u003e3\/16\" keyway for mechanical drive engagement\u003c\/li\u003e\n  \u003cli\u003eCompatible with 4\" and 4.5\" brake drums and typical rear sprockets\u003c\/li\u003e\n  \u003cli\u003eCheck measurements against your existing hub and sprocket bolt pattern\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and precise is the GREHUA hub?\u003c\/h3\u003e\n\u003cp\u003eThe hub is manufactured from hardened steel for strength and balanced for smoother rotation, helping reduce wobble and premature wear. Its construction is intended for light off-road and recreational use, where impact resistance and consistent alignment matter.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-strength steel body resists bending under load\u003c\/li\u003e\n  \u003cli\u003eBalanced design minimizes vibration at speed\u003c\/li\u003e\n  \u003cli\u003eCorrosion-resistant finish for longer service life\u003c\/li\u003e\n  \u003cli\u003eQuality machining ensures snug keyway and fastener seating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the hardware kit and how do I install it?\u003c\/h3\u003e\n\u003cp\u003eThe package arrives with the hub, a matching key, four bolts, four nuts and a small wrench, giving you everything needed to mount most sprockets or brake drums. Installation is a basic mechanical task: align the keyway, slide on the sprocket\/drum, secure bolts, insert the key into the shaft and tighten the set screws to lock the assembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes hub, key, 4 bolts, 4 nuts and a wrench\u003c\/li\u003e\n  \u003cli\u003eAlign keyway in hub and axle, then slide sprocket or drum into place\u003c\/li\u003e\n  \u003cli\u003eTighten fasteners evenly to prevent misalignment\u003c\/li\u003e\n  \u003cli\u003eUse supplied wrench and verify set-screws are secure before use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this on my drift trike, mini bike or ATV?\u003c\/h3\u003e\n\u003cp\u003eYes—this hub is suitable for a range of small recreational vehicles that use a 3\/4\" axle and 3\/16\" keyway, including drift trikes, mini bikes, go karts and light ATVs. Always double-check the brake drum or sprocket dimensions and bolt pattern for fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommonly used on go karts, drift trikes, mini bikes and dune buggies\u003c\/li\u003e\n  \u003cli\u003eWorks with rear-axle sprockets and small brake drums\u003c\/li\u003e\n  \u003cli\u003eNot intended for heavy industrial or high-horsepower vehicles\u003c\/li\u003e\n  \u003cli\u003eContact support with vehicle specs for fitment confirmation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The GREHUA 3\/4\" sprocket hub is aimed at DIY mechanics, small-vehicle enthusiasts and repair shops replacing worn axle hubs on recreational vehicles. If you maintain go karts, drift trikes, mini bikes, or light ATVs and need a rugged, keyed hub with the mounting hardware included, this part simplifies installation and restores secure sprocket or brake-drum attachment.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this hub fit a 3\/4\" round axle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The GREHUA hub is designed for 3\/4\" round axles and uses a 3\/16\" keyway for secure attachment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What hardware comes with the hub?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The package includes the hub, a key, four bolts, four nuts and a small wrench for installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GREHUA","offers":[{"title":"Default Title","offer_id":48084480360606,"sku":"B0B4FYSDMT","price":31.23,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/grehua-front-view-hub.jpg?v=1785856728","url":"https:\/\/northtrailauto.ca\/products\/grehua-3-4-bore-sprocket-hub-for-go-karts-drift-trikes-3-16-keyway-steel-with-hardware-kit","provider":"North Trail Auto","version":"1.0","type":"link"}