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T47a (BBright) Bottom Bracket for Shimano

T47a (BBright) Bottom Bracket for Shimano

SKU: 747973747760
$299.00Price
T47 threaded bottom bracket shell combines the oversized interface benefits of BBright system with the reliability of a threaded system. Designed for 77/79mm asymmetrical shell, the T47a positions the non-drive side bearings within the frame, and the drive side bearing outboard.

  • Specifications

    CNC aluminium BB cups;
    ABEC7 high chrome vacuum degassed bearing steel races with quenching and tempering hardening;
    Grade 3 Si3N4 ceramic bearing balls;
    Nylon bearing retainer;
    Dual lips light contact rubber bearing seals;

  • Frame requirements:

    T47 thread standard frame;
    Shell inner diameter M47x1.0mm thread and width 77/79mm asymmetrical shell (BBright);
    Placing the non-drive side bearing within the frame and the drive side bearing externally.

  • Crankset compatibility:

    24mm spindle Shimano cranksets.

  • Weight:

    101g

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