FOAIE ANGRENAJ ACID MTB PRO HPA 34T Courtesy of innovative Narrow Wide technology, our ACID Chainring not only keeps your chain securely on the sprockets but also runs more quietly than conventional chains.Its alternating narrow and wide tooth profile improves chain guiding to prevent annoying chain drops, while the direct mount design directly transfers all of your power from the crank to the chainring for maximum forward motion. With their modern, dynamic design cues, our ACID chainrings are an eye-catching addition to any bike.Chainring sizes: 30T, 32T, 34T Narrow-wide technology 3-bolt interface Compatible with Shimano 12-speed drivetrain Chainline 53 mm