For those riding in wet conditions Monocrome External BBs are available with CNC Storm Drains. These water drains allow water to escape from the cup before it can corrode or enter the bearing. The drains are invisible once the bottom bracket cups are assembled.
Bottom Bracket Cup with CNC Storm Drains
6805 Chromium Steel (Monocrome): Chromium steel caged deep groove ball bearings with plastic sleeves. As with all MonocromeTM bearings, these bearings carry a special guarantee with a 6 month no questions asked replacement.
6805 Stainless Steel (Monocrome): Stainless steel caged deep groove ball bearings with plastic sleeves. When purchased with CNC Storm Drains these bearings carry a special guarantee with a 12 month no questions asked replacement. When purchased without the CNC Storm Drains the standard MonocromeTM 6 month guarantee applies.
6805 Ceramic Hybrid (Enduro): Ceramic hybrid caged deep groove ball bearings with plastic sleeves.
Ceramic hybrid bearings have a conventional steel outer race but with ceramic balls inside. The harder ceramic balls roll a little easier, weigh a little less and the bearings have been designed to minimise rolling friction. These are ideal bearings for those seeking higher performance and lighter weight.