Full Speed Ahead Hammer 1-1/8" Heavy Duty Threadless Headset Black Model=Pro 4 Rear Hub Designed to face the worst

Designed to face the worst British weather has to offer Hopes threaded bottom brackets feature high quality sealed cartridge bearings and fit a variety of cranksets

} A direct development from the Pro4 hubs with stainless bearings throughout

A perfect setup for commuters the powerful Vis 500 headlight is combined with the smart features of the Vya switch for visibility

}SRAM S-900 Disc Brake Caliper - Flat Mount 2-Piston 2-Piece HRD Black

}RockShox Fork Service Kit - 200 Hour/1 Year 30 Gold and Silver (2018+)

Full Speed Ahead Hammer 1-1/8" Heavy Duty Threadless Headset Black Model=Pro 4 Rear Hub Designed to face the worstFull Speed Ahead Hammer 1 1 8" Heavy Duty Threadless Headset Black. FSA (Full Speed Ahead) Hammer Headsets. TECH SPECS Color Black Bearing Type Cup and Cone Crown Race 30 Weight 149 Defined Color Black Upper Stack Height 24. 7 S. H. I. S Upper EC34 S. H. I. S. Stem Clamp Diameter 28. 6 Threadless S. H. I. S Lower EC34