Bottom Bracket

T47a (asymmetrical) threaded BB cups for T47a frames and 22mm/24mm diameter spindle GXP compatible cranks. Cups have internal bearings, and can be used in BB shells with widths from 77.5 - 79mm. Machined aluminum cups thread together directly into a Cervelo, Factor and Felt T47a BB shell. Bearings are easily serviced or replaced. 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. T47a BB cups are similar to standard BSA threaded cups in that the drive side cup is left-hand thread and the non-drive side cup is right-hand thread. Use a quality grease when installing in steel or aluminum BB shells, and an anti-seize compound compatible with titanium BB shells.

T47 external cup on the drive side

T47 internal cup on the non-drive side

Compatibility:

Cervelo T47a 79mm shell width
Factor T47a 77.5mm shell width
Felt T47a 77mm shell width

T47 threaded BB cups for T47 frames and M30 28/30mm spindle diameter Praxis compatible cranks. Cups have outboard bearings, and can be used in BB shells with widths from 68mm to 100mm. Machined aluminum cups thread together directly into a T47 BB shell. Bearings are easily serviced or replaced. 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.

T47 BB cups are similar to standard BSA threaded cups in that the drive side cup is left-hand thread and the non-drive side cup is right-hand thread. Use a quality grease when installing in steel or aluminum BB shells, and an anti-seize compound compatible with titanium BB shells.

Bottom Bracket Includes:

BB Cups with bearings
2 - Silicone dust seals
2 - 0.5mm crank spindle spacers
2 - 1.0mm crank spindle spacers
1 - 2.5mm crank spindle spacer
1 - 28mm insert

Run M30 28/30mm spindle Praxis compatible cranks in a BSA threaded frame. Machined aluminum cups thread in to a standard threaded frame and feature ABEC-3 sealed bearings outboard of the BB shell. Fully serviceable.

Bottom Bracket Includes:

BB Cups with bearings
2 - Silicone dust seals
2 - 0.5mm crank spindle spacers
2 - 1.0mm crank spindle spacers
1 - 2.5mm crank spindle spacer
1 - 28mm insert