A top quality kit item, the One23 Ceramic/Carbon External Bottom Bracket guarantees to smarten up the drivetrain. Without compromising the durability, it offers great smoothness and its lack of friction makes this piece even more excellent.
Being all ceramic and carbon, the One23 weighs in at only 100g. Its carbon sleeve looks a lot more amazing than the common plastic one. However, the carbon sleeve is concealed in the frame. Due to its feathery weight, tightening the alloy cups needed extra care.
Although it is quite pricey, the One23 Ceramic/Carbon External Bottom Bracket guarantees an excellent performance. However, a creak may be developed after a long off-road distance. This can be fixed by a quick re-grease of the threads and contact surfaces to bring its silky smooth performance back.