SPONGE AIR FILTER| TO THE MOTORCYCLE | YAMAHA YFZ 450 R YSX 16-18 years | YAMAHA YFZ 450 R 19-20 years | YAMAHA YFZ 450 04-14 | YAMAHA YFZ 450 R 10-12 years | YAMAHA YFZ 450 R YSS SPECIAL EDITION 17-18 | YAMAHA YFZ 450 R SPECIAL EDITION 19-20 | YAMAHA YFZ 450 SE SPECIAL EDITION 2007 | YAMAHA YFZ 450 SP SPECIAL EDITION 2008 | YAMAHA YFZ 450 R SE SPECIAL EDITION 09-15 | YAMAHA YFZ 450 R YSS SPECIAL EDITION 2016 | Manufacturer: TWIN AIR| 7231682|Over 40 years ago, Dutch motorcycle users noticed that despite the use of high-quality disposable filters made of filter cardboard, engine failures were frequent and were caused by unfiltered dust particles reaching the combustion chambers. It quickly turned out that using a fairly simple method could effectively counteract this phenomenon. This is how the TWIN AIR double-layer sponge filters were born, whose design combines high efficiency with full engine protection. | Additionally, over the years, TWIN AIR designers noticed other problems related to the length and width of seams (gluing), which reduced the air flow, adversely affecting the operation of the engines. This was also changed thanks to the use of innovative micro-gluing technology.| To sum up, TWIN AIR filters are characterized by: | - laminated, fire-resistant double-layer foam,| - durability estimated at approx. 40-50 washes and soaks, | - high quality and precision of workmanship, which is manually controlled. | Country of origin: Netherlands.|