Full Speed Ahead Gossamer Stem - 90mm 31.8 Clamp +/-6 1 1/8" Alloy Black MFPN=370-0143004050 }SRAM Guide T Disc Brake

}SRAM Guide T Disc Brake and Lever - Front Hydraulic Post Mount Black A1

5" Color Black ISO Diameter 584 / 650b / 27

40-Series External Cup headsets set the standard for performance durability and value

}Pinhead M9 Solid Axle Locking Nuts

Full Speed Ahead Gossamer Stem - 90mm 31.8 Clamp +/-6 1 1/8" Alloy Black MFPN=370-0143004050 }SRAM Guide T Disc BrakeFull Speed Ahead Gossamer Stem 90mm 31. 8 Clamp + 6 1 1 8" Alloy Black. FSA (Full Speed Ahead) Gossamer Stems3D forged and CNC machined from AL6061 T6 4 bolt cold forged front clamp diameter Chromoly hardware TECH SPECS Stem Angle (deg) +6 Stem Angle (deg) 6 Length 90 Bar Clamp Diameter (mm) 31. 8 Color Black Weight 144 Material Alloy Defined Color Black Stack Height 40 S. H. I. S. Stem Clamp Diameter 28. 6