Works Components Shimano direct mount round chainring - optimized to work with 12-speed HG/Hyperglide+ chains. CNC-machined in the UK from aerospace 7075-T6 aluminium. The narrow-wide tooth profile ensures secure chain retention, while the anodized finish adds durability and style to your setup. 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 Model Round Shimano DM Ring Type Single (Anti-Chain Drop) Mount Shimano DM Teeth 30 Oval/Round Round Offset 3mm Compatible Cranks Shimano Direct Mount SLX M7100/7120/7130, XT M8100/8120/8130, XTR M9100/9120/9125/9130, MT900 and other cranksets sharing the same Shimano spline mount Compatible Chains 10SPD, 11SPD, 12SPD Shimano Hyperglide+ and 10SPD, 11SPD, 12SPD SRAM. Not compatible with SRAM T-Type chains Weight 30T: 59g Material 7075-T6 Surface Coating Anodized Color Black