Bearing is packed with heavy duty premium marine grease and with the addition of special complex thickeners which allows it to be virtually waterproof Nitrile butadiene rubber double-lip oil seals help prevent abrasives, corrosive moisture and other harmful contaminants from entering bearings To further help keep any moisture out, we have gone from 30% grease filling to a 60% for harsh conditions The special v-groove on the inner race is better for resistance to water intrusion Provides unsurpassed rust and corrosion protection Factory-Links ball bearings are specially designed for Off-Road use. - BMW R 1200 GS (2013, 2011, 2012, 2014); BMW F800GS (2011, 2012, 2008, 2009, 2010); BMW F800GT (2016, 2015, 2013, 2014); BMW F800GT ABS (2016, 2014, 2013, 2015); BMW R 1200 GS ABS (2013, 2012, 2011, 2014)