Full Speed Ahead Orbit-Z Internal Upper Headset - H2051A 1-1/8" ZS44/28.6 36x45 5.3/13.1mm BLK MFPN=11.6215.188.420 5 Defined Color Black Drivetrain

5 Defined Color Black Drivetrain Speeds 11 Number of Chainrings Double Pedal Spindle 9/16" Rings 36/52 Rings 52/36 Spindle Interface Type SRAM/Truvativ GXP

All DT Swiss hubs can be converted

}SRAM X-Sync 2 Eagle Steel Direct Mount Chainring 32T Boost 3mm Offset

}G Sport Bird Cage Rim - 20" Chrome 36H

}DT Swiss 1526 Bearing: Sinc Ceramic 26mm OD 15mm ID 7mm Wide

Full Speed Ahead Orbit-Z Internal Upper Headset - H2051A 1-1/8" ZS44/28.6 36x45 5.3/13.1mm BLK MFPN=11.6215.188.420 5 Defined Color Black DrivetrainFull Speed Ahead Orbit Z Internal Upper Headset H2051A 1 1 8" ZS44 28. 6 (36x45) 5. 3 13. 1mm Black. Replacement headset uppers from FSA. TECH SPECS Defined Color Black