SRAM X-Sync Eagle 6mm Offset Chainring INTEGRITYAfter studying the performance and wear of drivetrain components in the lab and in the real world, SRAM engineers have redesigned X-Sync chainrings. Enter X-Sync 2 Eagle chainrings. They are now more durable, run quieter and are more efficient. Given a longer positive-rake tooth they will work perfectly with Eagle chains to increase retention along with decreasing friction and noise no matter what the conditons. Reviews Bikerumor - "Basically, Eagle is substantially lighter than a 2x, has a 500% range, and makes the bike simpler. In other words, it frees you from ever needing a front derailleur again. " - Tyler Benedict Vital MTB - "Eagles are going to invade the planet, eat front derailleurs alive, and leave them for dead. " - Chris Hilton Features X-Sync 2 chainring design increases chain retention, wear life, and reduces friction and noise. Designed to be used with Eagle chain SPECIFICATIONSSpeeds12 Speed Tooth Count30, 32, 34, 36, 38Bolt Center Diameter (BCD)Direct Mount Materials Forged and machined aluminum Intended Use XC, Trail, All-Mountain Weight TBDChainring BCDSRAM GXP Direct Mount | Sram | Eagle X-Sync 2 6Mm Non-Boost Chainring | Black | 30 Tooth, Direct Mount | Aluminum