5DEV 8-Bolt T-Type Aluminum Chainring A High-Quality Chainring After thousands of miles of riding, you'll want to replace your chainring on the front to keep your bike working like new. If you're using a SRAM 8-bolt system and want to upgrade your chainring to something that will take your riding to the next level, then you'll love this. The 5Dev T-Type Aluminum Chainring is made of ultra-light and durable 7075 aluminum. It is compatible with SRAM 8-bolt direct mount cranks and works with SRAM Transmission, Shimano 12-speed, and SRAM Eagle chains. It is for chainlines of 52mm to 55mm and has an offset of 3mm. Features Designed for 8-bolt SRAM systems Material: 7075 aluminum For use with SRAM Transmission, Shimano 12-speed, and SRAM Eagle chains Offset: 3mm SPECIFICATIONSDrive Train Speed SRAM Transmission, Shimano 12-speed, and SRAM Eagle chains Tooth Count30, 32, 34TMaterial7075 Aluminum Direct Mount Type SRAM 8-Bolt Chainline52 - 55mm Offset3mm Intended Use MTBWeight N/AChainline/Chainring Offset Guidelines Rear Spacing135mm / 142mm148mm Boost Super Boost 150mm / 157mm Fat Bike (170mm, 190mm, 200mm)Chainline48 - 50mm51 - 53mm54 - 56mm56mm+Chainring Offset~6mm~3mm~0mm~+2mm | 5Dev | 8-Bolt T-Type Aluminum Chainring | Purple | 32T, 8-Bolt , 3Mm Offset