K&N Engineering RU-0810 Universal Round Straight Air Filter - Rubber End Cap engine-engine-covers 1996-1998 Harley Davidson XL1200C Sportster

1996-1998 Harley Davidson XL1200C Sportster 1200 Custom

2007-2008 KTM 250 SXS-F

2012-2016 Honda GL1800 Gold Wing Airbag

2018 Harley Davidson FXLR Low Rider 107

K&N Engineering RU-0810 Universal Round Straight Air Filter - Rubber End Cap engine-engine-covers 1996-1998 Harley Davidson XL1200C SportsterMounting Flange Inside Diameter 2 7 16in. MM 62, Filter Outside Diameter 3 1 2in. MM 89, Filter Length 5in. MM 127, Flange Length 5 8in. Flange Type Centered. When selecting one of K&Ns universal round straight air filters, you should consider the following dimensions as they relate to the specification chart:. Mounting Flange Inside Diameter This is the most critical dimension and should be very close to the diameter of the applications inlet flange.