{"product_id":"bbr-63mm-piston-kit","title":"BBR 63mm Piston Kit","description":"This kit replaces the stock 58.0mm bore with a larger 63mm piston, increasing the displacement to approximately 170cc. The 10.5:1 compression ratio is optimized for use with premium pump gasoline, offering a balance of performance and practicality.\n\nThis comprehensive kit includes all necessary components for installation: a brand-new BBR aluminum cylinder, a 63mm piston, a complete ring set, piston pin, clips, and all required gaskets. The product's quality is highlighted by a testimonial from Duane Brown, who stated, \"This is flat out the single best mod you can do to your KLX140 motor\" after extensive testing on a BBR KLX140 Concept Bike.\n\nFor optimal performance and to ensure proper fuel delivery, BBR provides general jetting guidelines. Additional optional parts, such as a high-performance camshaft, are also available separately to further enhance your motorcycle's capabilities.","brand":"BBR Motorsports","offers":[{"title":"Default Title","offer_id":52872818458936,"sku":"411-KLX-1801","price":209.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/bbr-63mm-piston-kit","provider":"MOTORMIA","version":"1.0","type":"link"}