January 6th, 2017, 03:53 PM
Joined: Jul 2016
From: Qc, Canada
I Ride: CBR250 MC22, Aprilia RSV 1000, KTM 505 Snowbike/supermoto
I used them a lot on most of my bikes since a few years, no problems either. They have been around for ages. Looks and feel like any other paper filter.