T47 threaded BB cups for T47 frames and M30 28/30mm spindle diameter Praxis – compatible cranks. Includes sleeve to fit between cups for added protection from dirt and grime and also keeps your internal wires and hoses from rubbing on the crank spindle. Cups have outboard bearings and can be used in BB shells with widths from 68mm to 100mm. Includes BB with bearings silicone dust seals 28mm insert and an assortment of spacers. Machined aluminum cups thread together directly into a T47 BB shell. Bearings are easily serviced or replaced

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