{"product_id":"1pz-centrifugal-clutch-for-go-kart-mini-bike-3-4-bore-12-tooth-with-35-chain-keyed-3-16","title":"1PZ Centrifugal Clutch for Go-Kart \u0026 Mini Bike 3\/4\" Bore 12-Tooth with #35 Chain, Keyed 3\/16\"","description":"\u003cp\u003e\u003cstrong\u003eThe 1PZ AP2-12T is a 12-tooth centrifugal clutch with a 3\/4\" bore and included #35 chain, designed as a drop-in replacement for many small engine go-karts and mini bikes.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis clutch assembly pairs a 12-tooth sprocket with a standard #35 roller chain and a 3\/4\" (0.75\") keyed bore, making it compatible with a wide range of small engines and popular engine clones. It’s engineered to engage automatically as engine RPM rises, transmitting power to the driven sprocket without a manual lever. The AP2-12T is offered to match commonly used OEM parts on engines such as Honda GX-series, Predator clones, and many Tecumseh\/Briggs \u0026amp; Stratton equivalents.\u003c\/p\u003e\n\n\u003ch3\u003eWill this clutch fit my engine and shaft?\u003c\/h3\u003e\n\n\u003cp\u003eThis 1PZ clutch fits engines that have a 3\/4\" crankshaft with a 3\/16\" keyway. It replaces clutches on many 4–7 HP engines and several popular models and clones.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/4\" bore with 3\/16\" keyway for secure keyed mounting.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Honda GX160, GX200, GX140, GX120, GC160, GC190 replacements.\u003c\/li\u003e\n  \u003cli\u003eWorks with Harbor Freight Greyhound 196cc and Predator 212cc clone engines.\u003c\/li\u003e\n  \u003cli\u003eFits many Tecumseh, Briggs \u0026amp; Stratton and common 5.5–6.5 HP clones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the AP2-12T clutch affect performance on a go-kart or mini bike?\u003c\/h3\u003e\n\n\u003cp\u003eThe centrifugal mechanism engages progressively as RPM climbs, offering smooth power transfer for acceleration without manual intervention. The 12-tooth sprocket and #35 chain balance torque delivery and durability for recreational vehicles and light-duty applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12T sprocket for reliable chain engagement and moderate top-speed gearing.\u003c\/li\u003e\n  \u003cli\u003e#35 roller chain provides a durable, widely available drive option.\u003c\/li\u003e\n  \u003cli\u003eCentrifugal engagement reduces stalling and simplifies starts.\u003c\/li\u003e\n  \u003cli\u003eConstruction suited for typical recreational loads and occasional heavier use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation and maintenance steps should I expect?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward if your engine shaft and keyway match the clutch specifications; basic hand tools and proper torque on the retaining nut are required. Routine inspection of chain tension and clutch surface wear keeps the system functioning safely.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSlide clutch onto keyed 3\/4\" shaft, align key, and secure with proper nut torque.\u003c\/li\u003e\n  \u003cli\u003eCheck chain tension and realign sprockets to prevent premature wear.\u003c\/li\u003e\n  \u003cli\u003eInspect clutch shoes and drum for glazing or uneven wear periodically.\u003c\/li\u003e\n  \u003cli\u003eReplace chain and fasteners if corrosion or stretching is evident.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this clutch replace parts on popular clone engines and OEM models?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the AP2-12T was designed to be compatible with a broad set of small engines and clones used in off-road and utility recreational machines. Confirm shaft diameter and keyway size before ordering for a smooth swap.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for many Honda GX and GC series small engines.\u003c\/li\u003e\n  \u003cli\u003eFits common Harbor Freight and Predator clone engines of similar crank dimensions.\u003c\/li\u003e\n  \u003cli\u003eSuitable for Tecumseh and Briggs \u0026amp; Stratton style applications where shaft specs match.\u003c\/li\u003e\n  \u003cli\u003eContact the seller if you're unsure about fitment for unusual or modified shafts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The 1PZ AP2-12T is intended for hobbyists, go-kart builders, mini bike owners, and small-equipment repairers who need a reliable, readily available replacement centrifugal clutch with a 3\/4\" keyed bore and #35 chain. It’s ideal when you want a straightforward install, broad compatibility with popular small engines and clones, and robust everyday performance for recreational vehicles and light utility use.\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 clutch fit a 3\/4\" shaft?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it has a 3\/4\" bore with a 3\/16\" keyway designed for keyed 3\/4\" crankshafts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the #35 chain included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the AP2-12T ships with a #35 roller chain matched to the 12-tooth sprocket.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"1PZ","offers":[{"title":"Default Title","offer_id":48085711224990,"sku":"B08BHMRQ9C","price":43.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/1pz-centrifugal-clutch-front-profile.jpg?v=1785876951","url":"https:\/\/northtrailauto.ca\/products\/1pz-centrifugal-clutch-for-go-kart-mini-bike-3-4-bore-12-tooth-with-35-chain-keyed-3-16","provider":"North Trail Auto","version":"1.0","type":"link"}