PRO FILTER Premium Air Filters are made of chemical resistant, high quality polyester based foam. Dual-stage design allows for superior filtration by eliminating the passage of fine dirt and dust, while helping to prevent air flow blockage. Special reticulation process offers unsurpassed air flow and filtration. Industrial strength, resin bonded seams increase the integrity of the filters wash after wash. Packaged individually in a re-sealable bag.
First, description is a little confusing, they fit 2020 and newer. I put them on a 23' 430RE. They are really nice, vary similar to the Flow's rad guards, but they only make them for up to 2019. Con: they did take a month to arrive .
Hard plastic that breaks easily and is difficult to replace on a 300RR. The second one broke in less than a year. In 25 yrs of riding I have never bent or broken an aluminum subframe. What's more all the wiring for the RR, the battery box, air box, lighting etc. is integrated so it takes 2 hours of painstaking work to remove and install a new one. Sorry Beta but this really is the worst thing about the bike.