This is a general-purpose air valve. There is no instruction manual. We do not provide support for installation or fitment confirmation. Please judge based on the images and dimensions provided. *As this is an overseas production item, there may be manufacturing burrs, slight color unevenness, or minor scratches during transportation. Also, please note that the actual color may appear different due to the monitor environment. Thank you for your understanding before purchasing. -------------------------------------------------- 「Durable」Made from high-quality rubber and aluminum alloy, this tire valve stem can withstand harsh weather and road conditions. Provides high performance over a long period and maintains proper tire pressure. "Stylish" The glossy anodized finish of the air valve brings a modern and sophisticated look to your wheels. This 90-degree tire stem will have a positive impact on your vehicle, not only in appearance but also in functionality. "Air Leak Prevention" The clamp-in valve has a 90-degree bend, making it easy to fill with air and preventing air leaks. This also leads to extending tire life and improving fuel efficiency. 「Versatile」This valve stem, compatible with various types of motorcycles and cars, offers versatility to meet the needs of every driver.