Cane Creek replacement bearing kits for Hellbender 70 series bottom brackets feature excellent durability and corrosion resistances for exceptional ride qualilty440C stainless steel bearings for long service lifeRobust dual lip seals provide excellent contamination protectionPacked with marine-grade grease to keep the bearings rolling smoothKit includes (2) cartridge bearings TECH SPECS table{border-collapse:collapse;width:100%;} td{text-align:left;padding:8px;font-weight:350;} tr:nth-child(even){background-color:#f2f2f2} th{background-color:#eb212e;color:white;text-align:left;padding:8px;} .desc .specs-heading{font-size:24px;font-weight:600;padding-top:35px;border-top:3px solid #f0f0f0;display:inline-block;border-bottom:4px solid #eb212e;width:142px;margin:0;} Spindle Compatibility 30Mm