{"product_id":"154cc-aluminum-performance-cylinder-kit-60mm-bore-15mm-pin","title":"154cc Aluminum Performance Cylinder Kit [60mm Bore, 15mm Pin]","description":"The Polini cylinder kit is a 154cc aluminum performance thermal group designed to upgrade 125cc 2-stroke engines. The cylinder is constructed from aluminum with a durable Nicasil bore lining and features a 60mm diameter, which increases displacement from the stock 125cc to 154cc. The kit includes a cast iron bisegment piston with a 15mm pin and a high-compression cylinder head for improved thermal efficiency.\n\nEngineered for sport-level performance, this kit is compatible with liquid-cooled Rotax 122 and 123 engine platforms. Please be advised that the cylinder is delivered without a cylinder head cover; ensure your existing cover is compatible or sourced separately.\n\nThis kit is confirmed for use with a wide range of Aprilia motorcycles, including the AF1 Futura, AF1 Replica, AF1 Sintesi, Europa, Pegaso, Red Rose, RS 125, RS Extrema, RX 125, SX 125, Tuareg Rally, and Tuono 125, as well as various go-karts utilizing the compatible Rotax engines. Professional installation is generally recommended for thermal group upgrades to ensure correct clearances and engine timing.","brand":"Polini","offers":[{"title":"Default Title","offer_id":52663288922424,"sku":"146.0800","price":863.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687525786.jpg?v=1784325654","url":"https:\/\/store.motormia.co\/products\/154cc-aluminum-performance-cylinder-kit-60mm-bore-15mm-pin","provider":"MOTORMIA","version":"1.0","type":"link"}