Wolf Tooth Elliptical Direct Mount Chainring - 38t SRAM Direct Mount 6mm Offset Drop-Stop Flattop Compatible BLK

.top{margin-bottom:30px;}.top li{margin-left:5%;margin-right:5%;margin-top:10px;line-height:120%;list-style-position:outside;}Wolf Tooth Elliptical Direct Mount Chainring - 38t SRAM Direct Mount 6mm Offset Drop-Stop Flattop Compatible Black. Designed to fit SRAM cranksets with removable spiders. Its proprietary design has an ovality of 10% and a timing of 112 degrees after top dead center which provide the beneifits of an oval ring such as greater rear wheel traction without the traditional downsides of oval rings.Elliptical rings provide smoother more efficient pedal rotation which means better traction Drop-Stop chainrings are designed for use with 1x9 1x10 1x11 and 1x12 drivetrains Compatible with all 10- 11- and 12-speed chains with the exception of Shimano 12-speed chains Shimano 12-speed chains require the use of Wolf Tooth's Shimano 12-speed specific chainrings If using a 9-speed drivetrain use a 10-speed chain which will provide a tighter fit for better chain retention Not compatible with the SRAM RED and Force AXS 8-bolt interface Made from 7075-T6 aluminum for long life Use of a clutch-style rear derailleur is recommended table{border-collapse:collapse;width:100%;}td{text-align: left;padding: 8px;font-weight:350;}tr:nth-child(even){background-color:#f2f2f2}th{background-color:#eb212e;color:white;text-align:left;padding:8px;}.desc ul{font-size:24px;font-weight:600;margin-left:-25px;padding-top:35px;border-top:3px solid #f0f0f0;}.desc li{list-style:none;border-bottom:4px solid #eb212e;width:142px;} TECH SPECS Chainline/Hub Compatibility 135/142 MTB Hubs Chainline/Hub Compatibility 150/157 DH Hubs Chainline/Hub Compatibility 170/177 Hubs Defined Color Black Direct Mount Type Direct Mount SRAM Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Material Aluminum Offset 6 Ring Position/Type Chain Retaining Single Ring Round or Oval Oval Tooth Count 38