{"product_id":"performance-manufacturing-aph125b-hd-heavy-duty-sprocket-hub-1-1-4-bore-black-senior-classes","title":"Performance Manufacturing APH125B-HD Heavy Duty Sprocket Hub - 1 1\/4\" Bore Black - Senior Classes","description":"\u003cp\u003eEliminate drive-line flex and maximize power transfer to the track with the Performance Manufacturing 1 1\/4\" Heavy Duty Sprocket Hub, a mandatory upgrade when sourcing premium kart parts online. Engineered from billet aluminum and finished in a rugged black anodize, the APH125B-HD sprocket hub is built to clamp down on your 1 1\/4-inch axle with zero slip. Whether you are running a high-horsepower two-stroke or tuning your setup with a fresh lo206 carburetor kit, maintaining perfect chain alignment is critical. This heavy-duty hub utilizes a thick, robust profile that resists deformation, ensuring your sprocket stays true even after aggressive curb strikes or violent standing starts.\u003c\/p\u003e\u003ch2\u003eEssential Drive-Line Upgrades and Carburetor Parts\u003c\/h2\u003e\u003cp\u003eWhile many drivers focus on engine tuning and carburetor parts to find extra tenths, a flexing sprocket hub will rob you of that hard-earned horsepower before it ever reaches the tires. The Performance Manufacturing heavy-duty hub features a standard 6-bolt pattern, making it universally compatible with most performance sprockets and guards. Its extra-wide clamping area provides superior bite on the axle, eliminating the spin-outs and keyway shearing that plague lighter, inferior hubs in senior classes.\u003c\/p\u003e\u003ch2\u003eStop Searching for Parts for Go Karts Near Me\u003c\/h2\u003e\u003cp\u003eYou don't need to waste time looking for parts for go karts near me when you can equip your chassis with race-proven billet components. Maintaining this hub is as straightforward as wiping it down with a quality tire cleaner or degreaser between heats. The black anodized coating not only looks aggressive but provides exceptional corrosion resistance against track debris, harsh chemicals, and moisture.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Billet Construction:\u003c\/strong\u003e Machined from high-grade aluminum to prevent flexing and chain derailment under heavy loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 1\/4\" Axle Compatibility:\u003c\/strong\u003e Precision-bored to provide a flawless, tight tolerance fit on standard 1.25-inch racing axles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 6-Bolt Pattern:\u003c\/strong\u003e Easily accepts standard racing sprockets and protective gear guards for quick gearing changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack Anodized Finish:\u003c\/strong\u003e Delivers superior corrosion resistance and a professional, stealthy aesthetic to your drive-line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Clamping Force:\u003c\/strong\u003e Extra-thick clamping collar ensures the hub stays locked in place, protecting your keyways.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSenior Class Ready:\u003c\/strong\u003e The go-to choice for high-torque applications, heavy-use fleets, and demanding sprint or oval racing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Power Transfer:\u003c\/strong\u003e Keeps the sprocket perfectly aligned, ensuring every ounce of engine torque reaches the rear wheels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this hub compatible with all 1 1\/4\" kart axles?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the APH125B-HD is precision-bored to fit standard 1 1\/4-inch racing axles. Its heavy-duty clamping collar is designed to provide a secure, slip-free fit on these axles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why should I choose the \"Heavy Duty\" version over a standard sprocket hub?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The Heavy Duty (HD) version features a thicker, more robust profile designed to resist deformation. This is critical for senior classes or high-horsepower setups where aggressive curb strikes and high-torque standing starts can cause standard hubs to flex or shear keyways.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this hub come with the bolts to attach my sprocket?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This product includes the hub itself. It utilizes a standard 6-bolt pattern, which is compatible with most industry-standard racing sprockets and protective guards you likely already have in your toolbox.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I maintain the black anodized finish?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The anodized coating is highly durable and corrosion-resistant. Simply wipe the hub down with a quality degreaser or tire cleaner between heats to remove track debris and moisture, keeping it looking professional and functioning correctly.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/1-1-4-floating-sprocket-hub-black-pm-015-fs\"\u003eBlack 1 1\/4 Inch Floating Sprocket Hub PM-015-FS for Adjustable Kart Drive\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pmi-sprocket-hub-1-25-pm-15\"\u003ePerformance Manufacturing PM-15 1.25\" Sprocket Hub - Black Anodized - All Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pm-77a-light-weight-8-5-sprocket-guard-set-pm-77a\"\u003ePM-77A Lightweight 8.5 Inch Sprocket Guard Set for Kart Efficiency\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/acgs-aluminum-chain-guard-w-heat-shield-black-acgs\"\u003eACGS Aluminum Chain Guard \u0026amp; Heat Shield – Fits LO206 \u0026amp; Animal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/carbon-fiber-spacer-kit-cfsk\"\u003eVersatile Carbon Fiber Spacer Kit for 1.25\" Kart Axles\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SwiftKarting","offers":[{"title":"Default Title","offer_id":52379070464319,"sku":"APH125B-HD","price":75.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/6843\/4239\/files\/114sprockethubs-1-1-4-sprocket-hub-black-heavy-duty-aph125b-hd.jpg?v=1773221992","url":"https:\/\/metro-merch-3.myshopify.com\/products\/performance-manufacturing-aph125b-hd-heavy-duty-sprocket-hub-1-1-4-bore-black-senior-classes","provider":"Metro Merch","version":"1.0","type":"link"}