NCY Performance Valve Spring Set | Genuine & GY6 125-170cc

Upgrade your valve train with the NCY Performance Valve Spring Set, engineered for Genuine Buddy 125–170 scooters and all 2-valve GY6 QMJ/QMI/QMK cylinder heads. Made from electroplated titanium, these springs deliver tighter valve control at higher RPMs compared to stock, reducing float and improving throttle response. Includes one inner and one outer spring per valve (2 of each).

• Inner spring — ID: 12.25mm | Length: 32.5mm | Width: 16.09mm | Wire thickness: 1.96mm
• Outer spring — ID: 17.20mm | Length: 35.6mm | Width: 22.5mm | Wire thickness: 2.9mm
• Fits 2-valve cylinder heads on GY6 QMJ157, QMI152, QMK161, and related engine codes
• Compatible engine codes: 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A, and other QMJ/QMK/QMI variants
• Made in Taiwan | ISO 9001 certified

Compatible Models:

• Genuine Buddy 125, Buddy 150, Buddy 170
• GY6 125cc / 150cc / 169cc engines with QMJ, QMI, or QMK engine codes
• Wide range of Chinese GY6-powered scooters (Wolf, Tao Tao, Jonway, ZNEN, Bintelli, SSR, and more)

Note: This product is intended for off-road/racing use only. Not legal for use on public roads or on pollution-controlled vehicles in California. Performance upgrades are not covered under warranty. California Prop 65 Warning: www.p65warnings.ca.gov

• Electroplated titanium construction for improved durability over stock springs
• Tighter valve control at higher RPMs — reduces valve float
• Includes inner and outer spring per valve (2 inner + 2 outer)
• Fits all 2-valve GY6 QMJ/QMI/QMK cylinder heads (125cc–169cc)
• Made in Taiwan by NCY — ISO 9001 certified since 1997

Inner Spring: ID 12.25mm | L 32.5mm | W 16.09mm | Thick 1.96mm | Outer Spring: ID 17.20mm | L 35.6mm | W 22.5mm | Thick 2.9mm | Material: Electroplated Titanium | Weight: 0.25 lbs | SKU: 1100-1284

Brands: Amstar, Amigo, Ascend, Baotian, Bashan, Blade, Boom, Chicago Scooter Company, Dongfang, Roketa, Baotian, Bashan, BMS, Cool Sports, E Ton, Fly Wing, Eagle, Fly, Italica, Riya, Ice Bear, Jackel, Jet Moto, JCL, Taotao, Peace, JM Star, Jonway, Kazuma, Keeway, KMD, Kymco, Lance, Lifan, Linhai, Loncin, Longbo, Fuxin, Jiajue, Tao Tao, Tao Motors, Trailmaster, Maxtrade, Meitien, Motofino, Motorino, NST, Panterra, Panther, Qlink, Yiben, Red Streak, Redcat, Roketa, Schwinn, Strada, SYM, Tank, Terminator ,Tomberlin, TNG, United Motors, Vento, Vitacci, Wildfire, Wolf, X-Treme, X-Pro, Yongfu, ZNEN, Zhongneng , Zhilong, Geely, Wangye, ZH and more Manufactured by: Taizhou Zhongneng Motorcycle Co.; Jiangsu Zhongneng Motorcycle Co.; Jiangsu Meijunte Technology Co.; Taizhou Qianxin Vehicle Co.; Ningbo Dongfang Lingyun Vehicle Made Co.; Taizhou Zhilong Technology Co.; Zhejiang Jiajue Motorcycle Manufacturing Co.; Zhejiang Gelly Ming Industrial Co.; Taizhou City Senglong Motorcycle Manufacture Co.; Jiangsu Sacin Motorcycle Co.; Jiangsu Linhai Power Machinery Group Co.; Zheijiang TaoTao Vehicles Co.; Zhejiang Senling Motorcycle Co.; Sanmen County Yongfu Machine Co; Taizhou Jiaojiang Zhiwei Motorcycle Manufacture Co.; Huzhou Daixi Zhenhua Technology Trade Co.; Taizhou Zhongneng Motorcycle Co.; Zhejiang Riya Motorcycle Co.; Ningbo Longjia Motorcycle Co.; Taizhou Zhongneng Motorcycle Co.; and more