{"product_id":"boyesen-639-dual-stage-reeds-for-1989-1993-kawasaki-kx125","title":"Boyesen 639 Dual-Stage Reeds for 1989–1993 Kawasaki KX125","description":"\u003cp\u003eUpgrade the intake performance of your 1989–1993 Kawasaki KX125 with Boyesen 639 dual-stage motorcycle reeds. Designed as a direct-fit replacement for the original reed system, these performance reeds help improve throttle response, airflow, and overall engine efficiency while maintaining dependable operation for motocross and off-road riding.\u003c\/p\u003e\u003cp\u003eBoyesen’s dual-stage reed design uses staged flex characteristics to support faster opening and closing during engine operation. This helps provide stronger low-pressure, low-throttle response along with increased air velocity and flow area. The result is improved engine response across the usable power range with a minor component change that can deliver noticeable horsepower gains.\u003c\/p\u003e\u003cp\u003eFeature: Dual-stage reed construction supports responsive intake performance. Feature: Faster opening and closing helps improve engine reaction and throttle response. Feature: Increased velocity and flow area promote improved airflow. Feature: Enhanced low-pressure response supports stronger low-throttle performance. Feature: Durable construction is designed for longer overall service life. Feature: Engine-safe design helps prevent engine damage if a reed breaks.\u003c\/p\u003e\u003cp\u003eThe Boyesen 639 is manufactured for fitment on 1989, 1990, 1991, 1992, and 1993 Kawasaki KX125 motorcycles. Verify the motorcycle model year and existing intake components before installation. This product is identified by Boyesen manufacturer part number 639 and vendor part number 59-7639.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDual-stage reeds support improved intake performance\u003c\/li\u003e\n\u003cli\u003eFaster opening and closing for quicker engine response\u003c\/li\u003e\n\u003cli\u003eGreater low-pressure response at low throttle\u003c\/li\u003e\n\u003cli\u003eIncreased velocity and flow area for improved airflow\u003c\/li\u003e\n\u003cli\u003eMinor component change designed to deliver horsepower improvements\u003c\/li\u003e\n\u003cli\u003eDurable construction for longer overall service life\u003c\/li\u003e\n\u003cli\u003eDesigned to help prevent engine damage if a reed breaks\u003c\/li\u003e\n\u003cli\u003eFits 1989–1993 Kawasaki KX125 motorcycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1989 Kawasaki KX125\u003cbr\u003e\n1990 Kawasaki KX125\u003cbr\u003e\n1991 Kawasaki KX125\u003cbr\u003e\n1992 Kawasaki KX125\u003cbr\u003e\n1993 Kawasaki KX125","brand":"BOYESEN","offers":[{"title":"Default Title","offer_id":67549803708651,"sku":"59-7639","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/43a4-5a15cbc327b33.jpg?v=1790694810","url":"https:\/\/ctracingservices.com\/products\/boyesen-639-dual-stage-reeds-for-1989-1993-kawasaki-kx125","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}