When i got my bike in Sept19, was informed the air filter is Pipercross, serviceable, did not bother till yesterday decided to just remove and clean(since i have the K&N cleaner). To my horror, it was just like a normal SPONGE/FOAM, wrap around a plastic frame and it was so brittle, chunks were everywhere. Clean/Vacuum the entire compartment. Later will check around if they have K&N filter model TB-9004 available in these country for my 2012 T100. DNA Air filter might have but only discover these brand yesterday, looks like the K&N filter, performance = gotta check review around the globe.