Sm-bb72 Ultegra Press-fit Bottom Bracket Category_Cycle The Metron 81 SL is

The Metron 81 SL is built for road racing and fast training rides where aerodynamic efficiency matters

The strap-mount system stays secure even on rough

The tube performs normally through monsoon riding when correctly seated inside a good-quality tyre

For riders who prioritise brand heritage

but do check cage length compatibility if you run a wide-range cassette

Sm-bb72 Ultegra Press-fit Bottom Bracket Category_Cycle The Metron 81 SL isThe Shimano SM BB72 Ultegra Press fit Bottom Bracket is a precision engineered component that sits at the heart of your drivetrain. Designed for road cycling, it pairs directly with Ultegra level cranks and delivers the kind of smooth, consistent pedalling platform that serious riders in India depend on, whether training through Pune's humidity or grinding up the Ghats. Use Cases Daily training. Reliable construction for repeat use. Race day.