Is a sealed bottom bracket better than unsealed?

A sealed bottom bracket generally offers better protection against dirt, moisture, and debris, leading to improved longevity and reduced maintenance compared to unsealed options. While unsealed bottom brackets can be lighter and easier to service, they are more susceptible to environmental damage. Ultimately, the choice depends on riding conditions and personal preferences regarding maintenance and weight. For most riders, sealed bottom brackets are often the preferred option for their durability and reliability.