{"product_id":"malossi-honda-cn250-performance-compression-contra-spring","title":"Malossi Honda CN250 Performance Compression \/ Contra Spring","description":"Eliminate sluggish acceleration and restore climbing power with the Malossi Yellow Compression Spring 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. Key Features Stiffer Sport Rate: Yellow \"Sport\" spring delivers faster downshift response when you roll on the throttle, eliminating the bog caused by a fatigued stock spring. Silicon-Steel Construction: High-tensile silicon steel with specialized heat treatment maintains tension even after extended high-heat operation. Smooth Shift Curve: Balances seat pressure and centrifugal force for a predictable, linear acceleration curve. Made in Italy: Precision-wound by Malossi to meet the exact mechanical requirements of the Honda 250cc drivetrain. Technical Specifications Color Code: Yellow (Sport \/ mid-range) Material: Silicon-steel alloy Application: CN250 liquid-cooled vertical engine Part Number: M 299975.Y0 Country of Origin: Italy Compatibility Model Engine Honda Helix CN250 All production years, liquid-cooled Honda Elite 250 CH250 Vertical engine models Chinese Clones CF250 Standard 250cc liquid-cooled vertical clones Installation Tips The Yellow spring is the ideal daily-riding choice — stiff enough to eliminate belt slip without causing excessive belt wear. Always use a clutch compression tool during installation; this spring is under significant tension. If your Helix bogs on hills, a fatigued stock spring is the most common cause — this is the fix. About Malossi Malossi 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. California Prop 65 Warning: www.p65warnings.ca.gov Notice: 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.","brand":"malossi","offers":[{"title":"Default Title","offer_id":48045656506555,"sku":"M 299975.Y0","price":24.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/thriftyscooters.com\/products\/malossi-honda-cn250-performance-compression-contra-spring","provider":"Thrifty Scooters","version":"1.0","type":"link"}