The Hive 68/73mm 15G External Bottom Bracket

• e*thirteen's BSA threaded bottom brackets adapt e*thirteen cranks to standard BSA threaded BB shells
• Bearings feature high performance seals and custom grease specification for top-notch durability and smooth spinning
• e*thirteen threaded BBs cannot be used to retrofit a BB30 crankset onto a BSA threaded frame
• Large custom sealed 6806 bearings are replaceable and serviceable