{"product_id":"sprocket-13t-428","title":"Front Sprocket 13T Steel CH1-13","description":"\u003cp\u003eFront steel drive sprocket with 13 teeth, suitable for a matching 428-pitch chain. Replacement part number 31-CH1-13.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 31-CH1-13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePosition:\u003c\/strong\u003e Front\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTooth count:\u003c\/strong\u003e 13 teeth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSprocket family:\u003c\/strong\u003e 31-CH1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain size:\u003c\/strong\u003e 428\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment and maintenance\u003c\/h3\u003e\u003cp\u003eMatch the sprocket family and mounting pattern to the motorcycle model and year. Confirm chain size, tooth count and clearance before ordering. A change in tooth count changes the final-drive gearing and can affect the chain length and adjustment required.\u003c\/p\u003e\u003cp\u003eInspect the drive chain and both sprockets together; worn components can shorten the service life of replacement parts. Install to the motorcycle manufacturer's assembly and torque specifications, then check chain adjustment and lubrication.\u003c\/p\u003e","brand":"Rock Motorcycles","offers":[{"title":"Default Title","offer_id":53064193671485,"sku":"31-CH1-13","price":15.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0996\/3506\/9245\/files\/22070.jpg?v=1794447657","url":"https:\/\/rockmotorcycles.com.au\/products\/sprocket-13t-428","provider":"Rock Motorcycles","version":"1.0","type":"link"}