Sealed cartridge bottom brackets - How they differ from other types?

Ever wondered how sealed cartridge bottom brackets work? In this short video, I'll break down the components and benefits of these maintenance-free systems. From the integrated axle, sleeve, sealed bearings, and bearing cups, to understanding thread types like ISO or Italian, we'll cover it all. I’ll also explain the difference between 68mm and 73mm bottom bracket shells and why measuring your axle length is crucial when choosing a replacement.
Plus, learn about the common "square taper" design and the exceptions with splines. Perfect for cyclists looking to upgrade or maintain their bikes!