If you are looking for high efficiency with a balance of durability and lightweight, the Press-Fit bottom bracket for 92mm BB shells is perfect. The XT line is 11-speed compatible, based on the XTR/Dura-Ace inspired bottom brackets. Small bearings for efficiency and for shaving some weight. The final touch is a better seal which makes them last longer than before!
• Fits Press Fit 92mm BB Shells
• Small ball Bearings for Better Rotation
• Better Sealing