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Mini bike Noram sprocketsis aqualityproduct, universally acknowledged to be durable and reliable, ideal for any application. Check the range at OMB Warehouse. Mini bike Noram sprockets is a premier “hard coated” line of racing sprockets that offer the mini bike racer the longest life of any sprockets in the mini bike industry. High quality aluminum is utilized and machined twice for improved accuracy, and then combined with final CNC machining that ensures straight and consistent tooth profiles. The ‘hard coating’ uses an electro-chemical process that penetrates the surface of the aluminum. The result is superior wear and corrosion resistance which greatly prolongs the life of the mini bike sprocket. These high qualityreplacement clutch sprockets fitBuller, Jammer, SMC, NORAM & Premier clutches that accept interchangeable sprockets. Good for #40/41/420 chain, 10 tooth, 7/8" internal diameter. Our top selling product in this category is the mini bike sprocket for 40/41/420 Chain, 60 Tooth Sprocket for Go Karts and Mini Bikes. It is made of high-quality metal, durable to use, and a great OEM replacement part for a proper fit and easy installation. Specifications are 9-3/4" diameter, 60 tooth sprocket with a 2-1/8" bore; 8 x 3/8" mounting holes, spaced 1-1/4" apart.