{"product_id":"the-ultimate-yz250yz250x-piston-kit-1999-25-77","title":"The ultimate YZ250\/YZ250X Piston Kit 1999-2026","description":"\u003ch2\u003eUltimate Piston Kit for Yamaha YZ250\/YZ250X (1999-2026)\u003c\/h2\u003e\n\u003cp\u003eThe definitive piston upgrade for Yamaha's legendary 250cc two-stroke. Covers over 27 years of YZ250 and YZ250X production with proven performance.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Coverage:\u003c\/strong\u003e 1999-2026 models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Design:\u003c\/strong\u003e Enhanced power capability, single ring design for reduced friction, ring pin moved to 6 oclock\/centered position to allow for improved porting for engine tuners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality Construction:\u003c\/strong\u003e Forged from 4000 series aluminum for extreme durability, sized properly for the material and hard wide open usage. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Piston, ring, wrist pin, circlips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro Supercross Proven:\u003c\/strong\u003e Last 250 two stroke in a premeir class main event was powered using this piston kit.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe ultimate piston for demanding riders on the yz250\u003cbr\u003eWe developed this piston over 15 years ago for our personal race builds - by moving the ring locating pin to the middle of the boost port  (like all good race engines now days), and going to a forged piston.  We had experienced a few OEM pistons failing in hard use, ripping wrist pins out of the piston, sometimes cracking the skirts, and ending in disaster, so we set out to develop the ultimate race piston.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"HP Race Development","offers":[{"title":"Default Title","offer_id":47764457750698,"sku":null,"price":249.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/4226\/7562\/files\/s511958336446080411_p106_i1_w4032.jpg?v=1765780999","url":"https:\/\/v2n80g-j1.myshopify.com\/products\/the-ultimate-yz250yz250x-piston-kit-1999-25-77","provider":"Hp Race Development","version":"1.0","type":"link"}