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. - Honda CBR600RR (2010, 2020, 2022, 2008, 2018, 2007, 2013, 2014, 2012, 2017, 2011, 2015, 2019, 2021, 2009, 2016); Honda Africa Twin (2021, 2024, 2020, 2022); Honda CBR600RAA (2015, 2018, 2017, 2010, 2012, 2014, 2011, 2013, 2009, 2016); Honda CBR600RR ABS (2022); Honda Africa Twin Adventure Sports ES DCT (2020, 2024, 2022, 2021); Honda XL750R Transalp (2024); Honda Africa Twin Adventure Sports ES (2021, 2022, 2020, 2024)