RACE FACE 4-BOLT 12-SPEED SHIMANO CHAINRINGONLY FOR HYPERGLIDE+ CHAINSWhether you're upgrading to a 12-speed Shimano drivetrain or you're replacing a worn-out chainring, you'll want to consider the Race Face 4-Bolt 12-Speed Shimano Chainring. It is a narrow-wide chainring that is compatible with 104 BCD 4-bolt cranks. It's only compatible with Hyperglide + chains and is designed for use with 12-speed Shimano drivetrains.FeaturesOnly compatible with Hyperglide+ chainsDesigned for use with 12-speed Shimano drivetrainsNarrow-wide tooth profiling ensures consistent chain retentionSPECIFICATIONSDrive Train Speed12Tooth Count34TBolt Center Diameter104MaterialAluminumIntended UseMountainWeight- | Race Face 4 Bolt 12 Speed Shimano Chainring Black, 34 Tooth, 104 BCD