{"product_id":"malossi-performance-compression-spring-yellow-honda-cn250-p14930-m-299975-y0","title":"Malossi Honda CN250 Performance Compression \/ Contra Spring","description":"\u003cp\u003eEliminate sluggish acceleration and restore climbing power with the \u003cstrong\u003eMalossi Yellow Compression Spring\u003c\/strong\u003e for the Honda CN250 Engine platform and equivalent Chinese clone motors. Engineered specifically for the 250cc liquid-cooled vertical engine, this performance contra spring increases rear pulley pressure to prevent belt slip under heavy load — keeping your engine in its optimal power band on steep inclines and during aggressive overtaking.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStiffer Sport Rate:\u003c\/strong\u003e Yellow \"Sport\" spring delivers faster downshift response when you roll on the throttle, eliminating the bog caused by a fatigued stock spring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicon-Steel Construction:\u003c\/strong\u003e High-tensile silicon steel with specialized heat treatment maintains tension even after extended high-heat operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth Shift Curve:\u003c\/strong\u003e Balances seat pressure and centrifugal force for a predictable, linear acceleration curve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Italy:\u003c\/strong\u003e Precision-wound by Malossi to meet the exact mechanical requirements of the Honda 250cc drivetrain.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Code:\u003c\/strong\u003e Yellow (Sport \/ mid-range)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Silicon-steel alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e CN250 liquid-cooled vertical engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e M 299975.Y0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Italy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHonda Helix CN250\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll production years, liquid-cooled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHonda Elite 250 CH250\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVertical engine models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChinese Clones CF250\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard 250cc liquid-cooled vertical clones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe Yellow spring is the ideal daily-riding choice — stiff enough to eliminate belt slip without causing excessive belt wear.\u003c\/li\u003e\n\u003cli\u003eAlways use a clutch compression tool during installation; this spring is under significant tension.\u003c\/li\u003e\n\u003cli\u003eIf your Helix bogs on hills, a fatigued stock spring is the most common cause — this is the fix.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAbout Malossi\u003c\/h3\u003e\u003cp\u003eMalossi has been synonymous with Italian performance engineering since 1930. Every product begins in R\u0026amp;D, undergoing rigorous testing in real racing conditions before being approved for street use. Components are manufactured robotically under the direct supervision of Malossi family artisans — a tradition of precision passed down through generations.\u003c\/p\u003e\u003cp\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/www.p65warnings.ca.gov\" target=\"_blank\"\u003eCalifornia Prop 65 Warning: www.p65warnings.ca.gov\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNotice:\u003c\/strong\u003e This product is intended for off-road and racing use only. Not legal for use on pollution-controlled vehicles in California or on public roads. Check local laws before installing. Performance upgrades are not covered under warranty.\u003c\/p\u003e","brand":"Malossi","offers":[{"title":"Default Title","offer_id":46763677417752,"sku":"M 299975.Y0","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/M_299975.Y0.webp?v=1780000708","url":"https:\/\/www.scooterworks.com\/products\/malossi-performance-compression-spring-yellow-honda-cn250-p14930-m-299975-y0","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}