{"product_id":"kt-535-1818039","title":"Driven sprocket, rear, 39T, 520 size, CBR250R","description":"[KITACO 535-1818039 Driven Sprocket Rear 39T 520 Size CBR250R KITACO 535-1818039]\u003cbr\u003e\nMade of lightweight and highly durable S45C (high carbon steel).\u003cbr\u003e\nThe replacement time for sprockets is very ambiguous, with no clear standards.\u003cbr\u003e\nOne indicator for judgment is \"tooth wear.\"\u003cbr\u003e\nIf the teeth become pointed, or the belly or sides are worn down, it's time to replace them.\u003cbr\u003e\nIt is recommended to replace the front and rear sprockets and chain all at once. If you only replace one part, the worn parts that were not replaced will cause the new parts to wear out prematurely, preventing them from performing at their full potential and durability. In the long run, replacing all three parts at once will extend their lifespan.\u003cbr\u003e\nChanging the gear ratio will cause a speedometer display error, so it is recommended for race use.\u003cbr\u003e\nFor general riding, inspect the sprocket every 1000km or so.\u003cbr\u003e\nIf the teeth are thin, replace them with new ones.\u003cbr\u003e\nRegular lubrication significantly extends the life of the sprocket and chain.\u003cbr\u003e\n520 size\u003cbr\u003e\nFor race use only\u003cbr\u003e\nCompatible models: CBR250R (MC41)\u003cbr\u003e\n*The image is for illustration purposes only. The design and specifications of the products shown may change without notice. Thank you for your understanding.","brand":"キタコ(KITACO)","offers":[{"title":"Default Title","offer_id":45534852120811,"sku":"kt-535-1818039","price":2269.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1021\/9499\/files\/kt-535-1818039.jpg?v=1718960971","url":"https:\/\/bikeman.jp\/en\/products\/kt-535-1818039","provider":"バイクマン","version":"1.0","type":"link"}