Wolf T47 Asymmetrical Bottom Bracket 30mm Black

■ Excellent waterproof performance: Unique sealing structure ensures high durability in all conditions while maintaining low resistance. Features spindle o-rings, bearing/bushing seals, internal and external low contact bearing seals, shell O-rings, labyrinth construction end caps. ■ Smudge Relief: Unique polymer bushing prevents metal contact between the bearing inner ring and the crank spindle. This eliminates the unique strain on the bottom bracket and increases the bearing life. ■ Lightweight Design: Compared to other products, this product is lightweight and provides stable performance in all environments. ■ Can be installed with standard tools, no special tools required. Can be installed and removed with regular spline tools (outer diameter 52mm-16notch). ■ Heavy duty bearing bearings use high hardness chrome bearing steel. By applying ACOSUR ZNA coating, it provides superior corrosion resistance that is equal to stainless steel in 500 hours of salt spray test

• Designed to combine smoothness, durability, lightness, speed, and maintenance. Uniquely designed bearings, seals, bushings and cups resist staining and provide the highest level of weather resistance and low resistance. Size/Weight: 1.2 inches (30 mm) (3.2 oz (91 g) *Including all BB assembly (excluding spacers); Shell Width: 3.0 inches (77 mm)