Blue Line OEM-Spec Variator Assembly: GY6 125-170cc

Reliable Restoration: Blue Line OEM-Spec Variator Assembly

Restore your scooter’s smooth acceleration with the Blue Line Variator Assembly. Designed as a direct-fit, OEM-Quality replacement, this complete kit is the ideal solution for worn-out pulleys, grooved drive faces, or flat-spotted rollers. Whether you're maintaining a Genuine Buddy or a standard Chinese GY6, Blue Line delivers factory-level performance without the premium dealership price tag.

Complete "Ready-to-Install" Kit

• Full Assembly: Includes the variator pulley, fan-side drive face, ramp plate, slides, and the drive boss for a comprehensive transmission refresh.
• Precision Weighted: Comes pre-loaded with a set of six 14g roller weights (18x14mm), optimized for the balance of torque and top speed required for 125cc-170cc engines.
• Direct OEM Fit: Engineered to match factory tolerances, ensuring a seamless swap that requires no modifications to your CVT case or belt.
• Durable Alloy Construction: High-pressure cast aluminum provides excellent heat dissipation to prevent belt slip and premature wear.

Comprehensive Fitment Guide

This assembly is compatible with 152QMI, 157QMJ, and 161QMK based engines, including:

157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:

Don't see your engine listed? If the engine code includes "QM" or "FM" along with a "5" or "6", this product is compatible with your vehicle.

Technical Specifications

• Drive Face Diameter: 106mm
• Spline Count: 19-Tooth
• Roller Weights: 18x14mm (14g)
• Drive Boss OD/ID: 24mm / 15mm

Mechanic's Note: If your variator is worn out, your drive belt likely is too. We strongly recommend inspecting your belt for cracks or fraying and applying a small amount of high-temp grease to the drive boss during installation to ensure smooth shifting.

Part Number: 1200-1182
Brand: Blue Line Parts

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