SRAM RED X-Sync Chainring - 42t 12/13-Speed 8-Bolt Direct Mount 6.5mm Offset BLK/Silver E1 Model=858 NSW Rear Wheel Armrest Stack: 40mm

Armrest Stack: 40mm

Vibration-damping material and snug fit prevents rattling

Color Silver Defined Color Silver Pedal Body Material Aluminum Pedal Spindle 9/16" Pedal Type Platform Spindle Material Chromoly Weight 318

}Promax SQ-1 Crank Arm Set - 160mm Square Taper JIS Spindle Interface 110mm BCD Gold

SRAM RED X-Sync Chainring - 42t 12/13-Speed 8-Bolt Direct Mount 6.5mm Offset BLK/Silver E1 Model=858 NSW Rear Wheel Armrest Stack: 40mmSingle ring drivetrain simplifies functionality and reduces weight X SYNC wide tooth, narrow tooth chainring technology provides maximum chain control SRAM Model ID: CR XSNC DM E1 TECH SPECS Narrow Wide Design Yes Teeth 42 Chainring Comp. SRAM FlatTop BCD Direct Mount SRAM 8 Bolt Speed 12