Air filter for Chinese 50cc 4 stroke

Air filter element to suit 49cc / 50cc 4-stroke Chinese engines designated "QMB139". These are the most common type of 4 stroke Chinese scooter engines. This is a quality foam air filter insert to replace the standard one. (Models may include Baotian, Solana, Arrow, Fierce, Forza, "Factory Built", Wolfboy, Qingqi, Kinroad, Lifan etc) Note for Chinese parts: except where otherwise specified, Chinese parts are made in China and so quality is often no better than what is fitted to your bike from factory. As we are not offered warranties from the factories, and technical specs, materials ratings and quality control in China is still dubious our liability is limited to replacing parts where possible where existing factory faults are present. Sorry!