Full Speed Ahead No.54 Tapered Headset Upper Assembly with ACB Bearings Diameter_29.6mm the Bosch Speed Sensor provides

the Bosch Speed Sensor provides reliable

Designed with straight pull engineering for improved aerodynamics

The modular design allows for the easy addition of new inserts as bottom bracket standards evolve

Ideal for cyclists who want quick access to navigation apps

0mm handlebars to 31

Full Speed Ahead No.54 Tapered Headset Upper Assembly with ACB Bearings Diameter_29.6mm the Bosch Speed Sensor providesUpgrade your bike's front end performance with the Full Speed Ahead No. 54 Upper Assembly the ideal choice for cyclists seeking precision, durability, and smooth steering. Designed for 1 1 4 inch tapered head tubes with 47. 6mm and 52mm OD, this high quality assembly ensures optimal compatibility and reliable performance across a wide range of mountain, road, and hybrid bikes. Constructed from robust alloy materials, the FSA No. 54 Upper Assembly