FIt: For Zongshen 190cc Pit Dirt Bike. Precision-Made for a Perfect Fit：The motorcycle engine intake and exhaust valve stem is crafted with high precision to ensure seamless compatibility with the engine, improving airflow efficiency and optimizing combustion performance. High-Temperature Resistant & Durable：Made from premium materials, the motorcycle engine intake and exhaust valve stem offers excellent heat and wear resistance, extending the engine’s lifespan. Wide Compatibility & Easy Installation：Designed to fit various motorcycle engine models, the motorcycle engine intake and exhaust valve stem is an ideal choice for repairs and upgrades, ensuring a hassle-free installation. Enhanced Power & Performance：The motorcycle engine intake and exhaust valve stem promotes smooth intake and exhaust flow, improving fuel combustion efficiency and boosting engine power for a smoother ride., Manufacturer: GCLANXI