K&N YZ450F Motocross Oil Filter

K&N Motocross Oil Filter. These oil filter are for those people that know and want to take care of there motocross Bikes engine. Your new Four Stroke should have its oil changed every 2-3 hours of ride time to keep your Motocross Bike at top level. I have heard people say 15 hour of ride time between oil changes. If you ride with any kind of speed on a race track then just take your motor out of the frame and send it in for a motor rebuild at the end of 15 hours. You just killed it. K&N Motocross Oil Filter.