{"title":"Wheel Hubs","description":"\u003cp\u003e\u003cstrong\u003eKart wheel hubs for setup and replacement:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOur \u003cstrong\u003eWheel Hubs\u003c\/strong\u003e collection covers front and rear wheel hubs for racing karts. Whether you are replacing a worn or damaged hub, making a setup change or simply making sure you have the right hub for your chassis and axle size, this collection brings together a range of options for different kart setups.\u003c\/p\u003e\n\n\u003cp\u003eIC Kartstore stocks genuine Freeline \/ Birel ART wheel hubs, genuine OTK wheel hubs and selected universal-style wheel hubs where suitable.\u003c\/p\u003e\n\n\u003cp\u003eWheel hubs are how the wheels attach to the kart. At the rear, the hub connects the wheel to the axle and plays a part in how the kart grips, rotates and feels through the rear of the chassis. At the front, the hub connects the wheel to the stub axle and can influence steering feel and front-end response.\u003c\/p\u003e\n\n\u003cp\u003eHub length and material are common setup choices in karting, so it is worth choosing the right hub for your chassis, tyre, class and track conditions rather than simply fitting the nearest available option.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePopular wheel hub options include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRear wheel hubs for kart chassis setup and replacement\u003c\/li\u003e\n  \u003cli\u003eFront wheel hubs for stub axle mounting\u003c\/li\u003e\n  \u003cli\u003eMagnesium wheel hubs for low weight and consistent on-track feel\u003c\/li\u003e\n  \u003cli\u003eAluminium wheel hubs for durable replacement use\u003c\/li\u003e\n  \u003cli\u003e50mm rear axle wheel hubs for compatible kart chassis\u003c\/li\u003e\n  \u003cli\u003eShort, standard and longer rear hub options to suit different setup requirements\u003c\/li\u003e\n  \u003cli\u003eGenuine Freeline \/ Birel ART wheel hubs\u003c\/li\u003e\n  \u003cli\u003eGenuine OTK wheel hubs for Tony Kart, Kosmic, Exprit, LN Kart, Redspeed, EOS, Gillard and CS55 chassis where applicable\u003c\/li\u003e\n  \u003cli\u003eSelected universal-style wheel hubs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eChoosing the right wheel hub:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eRear hub length can affect how the kart feels at the rear. Shorter hubs are often used when looking to free up the rear of the kart and help it rotate, while longer hubs can give more support and stability depending on the chassis, tyre and track conditions.\u003c\/p\u003e\n\n\u003cp\u003eFront hubs can affect steering feel and front-end response, so it is worth checking the correct size and type for your chassis. Magnesium and aluminium hubs can also feel different on track, and the best choice depends on the kart, class, grip level and driver preference.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBefore you order:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKart wheel hubs are not one-size-fits-all. Before ordering, check your chassis model, rear axle diameter, front stub axle size, hub length, wheel type and class regulations. Not every hub suits every kart, and product listings include the details you need to find the right part.\u003c\/p\u003e\n\n\u003cp\u003eIf you are not sure which wheel hub you need, get in touch and we will be happy to help.\u003c\/p\u003e","products":[{"product_id":"freeline-black-rear-hub-50x90mm","title":"Freeline Black Rear Hub 50x90mm","description":"\u003cp data-start=\"243\" data-end=\"479\"\u003eThe Freeline Black Rear Hub 50x90mm is a precision-machined rear hub designed for 50mm kart axles. At 90mm long, it offers a great balance between grip and flexibility, making it a popular choice for fine-tuning rear-end handling.\u003c\/p\u003e\r\n\u003cp data-start=\"481\" data-end=\"749\"\u003eBuilt from high-quality alloy with a black anodised finish, this hub delivers strength, durability, and a clean factory look. The clamping design ensures a secure fit to the axle while keeping weight to a minimum, helping to maintain consistent performance on track.\u003c\/p\u003e\r\n\u003cp data-start=\"751\" data-end=\"922\"\u003eIdeal for both competitive and hobby racers, the Freeline 50x90mm hub is a reliable option for maintaining or upgrading your kart setup. Available now at IC Kartstore.\u003c\/p\u003e","brand":"Freeline","offers":[{"title":"Default Title","offer_id":55816557920581,"sku":"FREELINE-BLACK-REAR-HUB-50X90MM","price":77.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2785\/6709\/files\/freeline-kart-wheel-hub-50x90-black-anodised.webp?v=1776034452"},{"product_id":"otk-rear-hub-d50-77mm-magnesium","title":"OTK Rear Hub D50 x 77mm Magnesium","description":"\u003cp\u003eThe \u003cstrong\u003eOTK Rear Hub D50 x 77mm Magnesium\u003c\/strong\u003e (part 0046.E0) is the short magnesium rear wheel hub used across the OTK family of kart chassis. Cast from magnesium alloy, it mounts the rear wheel to the 50mm rear axle and is held in position by an M8 wheel stud and K nut. At 77mm, it is the shortest of the OTK rear hub range and is a genuine OTK spare part.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOTK Part Number:\u003c\/strong\u003e 0046.E0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVendor:\u003c\/strong\u003e OTK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Magnesium alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAxle bore:\u003c\/strong\u003e 50mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHub length:\u003c\/strong\u003e 77mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold:\u003c\/strong\u003e Individually\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eChassis Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTony Kart:\u003c\/strong\u003e Racer 401 RR, Racer 401R, Racer 401S, Racer 401 T, Racer 401 TDX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKosmic:\u003c\/strong\u003e Mercury RR, Mercury R, Mercury T, Mercury TDX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExprit:\u003c\/strong\u003e Noesis RR, Noesis T, Noesis TDX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLN Kart:\u003c\/strong\u003e LN Four, LN Four T, LN Four TDX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedspeed:\u003c\/strong\u003e RX RR, RX T, RX TDX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCS55\u003c\/strong\u003e MY2025\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEOS\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGillard:\u003c\/strong\u003e TG17 MY2025, TDX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSetup Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRear hub length is a primary chassis setup variable. A shorter hub such as the 77mm option reduces the contact patch spread at the rear axle, which can help free rear-end grip and improve rotation through slower corners. It is commonly selected on higher-grip track surfaces or when a driver wants more corner exit rotation. The 77mm hub is typically paired with the \u003ca href=\"\/products\/otk-genuine-50mm-rear-axle\"\u003eOTK 50mm Rear Axle\u003c\/a\u003e and used alongside hub length comparisons with the \u003ca href=\"\/products\/rear-hub-standard-mg-50x92mm\"\u003e92mm standard\u003c\/a\u003e, \u003ca href=\"\/products\/rear-hub-long-50x115mm\"\u003e115mm long\u003c\/a\u003e, and \u003ca href=\"\/products\/rear-hub-extra-long-50x148mm\"\u003e148mm extra long\u003c\/a\u003e options.\u003c\/p\u003e\n\u003cp\u003eWheel nuts, axle, axle key, and fixing hardware are sold separately.\u003c\/p\u003e","brand":"OTK","offers":[{"title":"Default Title","offer_id":58439622525253,"sku":"0046.E0","price":89.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2785\/6709\/files\/otk-rear-hub-d50-77mm-magnesium-0046-e0.png?v=1783005928"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2785\/6709\/collections\/freeline-kart-wheel-hub-50x90-black-anodised.webp?v=1783009379","url":"https:\/\/thekartstore.com\/collections\/wheel-hubs.oembed","provider":"IC Kartstore","version":"1.0","type":"link"}