When it comes to improving the raw performance of the Ryker, it is hard to go wrong with an aftermarket cold air intake system or high flow air filter. The improved air flow to your engine will stabilize your internal combustion reactions and give you better fuel efficiency, while boosting the overall power of your Ryker. These systems are compatible with both the 600cc & 900cc engines. The filters themselves further enhance the benefit of your new intake system by filtering out unwanted pollutants and debris, so that your engine is only taking in pure, clean air.