I notice a lot of people have went with a K&N filter. What is the advantage to changing the filter? And a battery charger why would you need to charge your battery after a ride? Sorry If I dont ask I wont know!

 

Changing your air filter increases the amount of air your bike is consuming. I have a battery charger for both my car and bike but I never heard of charging your battery after a ride. Seems to me the long ride would charge the battery.