SRAM RED X-Sync Chainring - 38t 12/13-Speed 8-Bolt Direct Mount 6.5mm Offset BLK/Silver E1 MFPN=AC990083 } The Slipstream was developed

} The Slipstream was developed for two purposes: warmth and aerodynamics

and drain hole

Designed to rotate back in the event of a crash to help prevent damage to the derailleur or frame

Torque rear axle (not included) to spec recommended by axle / frame manufacturer

a great balance of power and pad life

SRAM RED X-Sync Chainring - 38t 12/13-Speed 8-Bolt Direct Mount 6.5mm Offset BLK/Silver E1 MFPN=AC990083 } The Slipstream was developedSingle 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 Chainring Comp. SRAM FlatTop Narrow Wide Design Yes Speed 12 BCD Direct Mount SRAM 8 Bolt Teeth 38