{"product_id":"1892227-wiseco-high-performance-piston-kit-for-yamaha-yz125-1986-1988-150-mm","title":"Wiseco High-Performance Piston Kit For Yamaha YZ125 1986-1988 +1.50 mm","description":"\u003cp\u003eThe \u003cstrong\u003eWiseco High-Performance Piston Kit For Yamaha YZ125 1986-1988 +1.50 mm \u003c\/strong\u003e is part of the latest collection from Wiseco.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged from high-silicon aluminum alloy for maximum strength and dependability\u003c\/li\u003e\n\u003cli\u003eWiseco offers a complete range of popular piston models and years for both trail and racing applications\u003c\/li\u003e\n\u003cli\u003eDurability, longevity and increased horsepower\u003c\/li\u003e\n\u003cli\u003eInnovative forging design and piston skirt provide maximum horsepower and torque\u003c\/li\u003e\n\u003cli\u003eFeatures forged pistons, rings, wrist pins, and circlips\u003c\/li\u003e\n\u003cli\u003eThese high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer\u003c\/li\u003e\n\u003cli\u003eEach piston is E-Coated on the crown, ring grooves, and pin bore, for maximum wear resistance and protection from micro-welding, galling, and detonation\u003c\/li\u003e\n\u003cli\u003eGP Series parts generally have less machining on the outside, which helps seal up the bore for increased compression\u003c\/li\u003e\n\u003cli\u003eAdditionally, boost ports are removed for a more predictable powerband and increased pull on the top end\u003c\/li\u003e\n\u003cli\u003eCylinder sleeves must be purchased separately.\u003c\/li\u003e\n\u003cli\u003eService intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.\u003c\/li\u003ePower valve modification required.\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBore - Oversize Metric: +1.50 mm\u003c\/li\u003e\n\u003cli\u003eBore - Oversize: +1.50 mm\u003c\/li\u003e\n\u003cli\u003eBore Size: 57.50 mm\u003c\/li\u003e\n\u003cli\u003eCompression Ratio Imperial: Stock\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: Stock\u003c\/li\u003e\n\u003cli\u003eDisplacement: 123 cc\u003c\/li\u003e\n\u003cli\u003eEngine Type: 2-Stroke\u003c\/li\u003e\n\u003cli\u003eModel: Pro-Lite\u003c\/li\u003e\n\u003cli\u003ePiston Diameter Metric: 57.45 mm\u003c\/li\u003e\n\u003cli\u003ePiston Diameter: 57.45 mm\u003c\/li\u003e\n\u003cli\u003ePiston Material: 4032 Aluminum Alloy| Forged\u003c\/li\u003e\n\u003cli\u003eProduct Name: Piston Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eTo fit:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eYAMAHA YZ 125  1986  All Models\u003c\/li\u003e\n\u003cli\u003eYAMAHA YZ 125  1987  All Models\u003c\/li\u003e\n\u003cli\u003eYAMAHA YZ 125  1988  All Models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eManufacturer part number: \u003c\/b\u003e559M05750\u003c\/p\u003e\u003cp\u003eView all \u003cstrong\u003e\u003ca href=\"https:\/\/www.ghostbikes.com\/collections\/wiseco\"\u003eWiseco\u003c\/a\u003e\u003c\/strong\u003e. View all \u003cstrong\u003e\u003ca href=\"https:\/\/www.ghostbikes.com\/collections\/parts-spares\"\u003eParts and spares\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":55102574330242,"sku":"1892227","price":162.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/9452\/0351\/files\/120578_1200x1124_0117dfcb-949b-4185-b6ea-4d44dd7b8c4c.jpg?v=1743766032","url":"https:\/\/www.ghostbikes.com\/products\/1892227-wiseco-high-performance-piston-kit-for-yamaha-yz125-1986-1988-150-mm","provider":"Ghostbikes","version":"1.0","type":"link"}