Full Speed Ahead Hammer 1-1/8" Heavy Duty Threadless Headset Black Model=Pro 4 Rear Hub }SRAM S-900 Disc Brake Caliper

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

}RaceFace ARC 25 Rim - 29" Disc Black 28H Offset

Attention to details creates perfection

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

Full Speed Ahead Hammer 1-1/8" Heavy Duty Threadless Headset Black Model=Pro 4 Rear Hub }SRAM S-900 Disc Brake CaliperFull 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