GY6 Engine Performance Upgrade Bundle - 45L Cam Chain Tensioner & Hi-Lift Camshaft Kit for 125cc-230cc Chinese ATVs/Scooters (152QMI/157QMJ/163QM Engines)

This performance-focused bundle combines two critical components for GY6 engine upgrades. The 45-link hardened steel timing chain system with 90° pin guides ensures precise cam synchronization, while the Hi-Lift camshaft (8.5mm valve lift) boosts mid-range torque by 18-22%. Compatible with stock 125cc-150cc engines and 180cc+ big bore kits, this combo features: CNC-machined aluminum chain guides with Teflon-coated sliders;Nitrided camshaft surface (HRC 60+ hardness) for 30,000km+ durability;Pre-assembled chain tensioner with laser-etched timing marks ideal for TaoTao/Bashan ATV owners upgrading to 230cc kits. Includes 2-year drivetrain warranty

• Perfect Fit for GY6 Upgrades: Works with 125cc-230cc Chinese ATVs and scooters including TaoTao 150-A, Bashan 230cc big bore kits, and stock 152QMI/157QMJ engines. Covers both maintenance and performance modifications
• Professional Performance Boost: Hi-Lift camshaft delivers 20% more low-end torque for hill climbs, paired with 45-link timing chain system that keeps valves perfectly synced even at 8,000 RPM
• Heavy-Duty Construction: Camshaft surface hardened like factory racing parts, chain guides coated with motorcycle-grade Teflon that lasts 3X longer than plastic versions
• Smart Installation Features: Pre-assembled tensioner with laser-etched timing marks (+/- 0.5° accuracy) and alignment pins makes DIY installation tool-free in under 90 minutes
• Upgrade Confidence: 24-month engine protection plan with free video guide (scan QR code). Return unused items within 60 days if not compatible