The design of positive and negative teeth eliminates the need to install chain guides and no need to worry about losing the chain.It is suitable for AM/XC models to refit single discs, friends who like lightweight, recommend you to install.The weight can be reduced by about 1KG. (Removed the front derailleur + left finger dial + middle plate large plate + part of the line tube, etc.)Made of aluminum alloy, it is light and strong, not easy to bend and deform.This larger wide tooth design provides maximum ring durability and drop performance.A variety of specifications are available, please confirm your crank BCD specifications are correct before purchasing.Item Name: Bike ChainringMaterial: Aluminium AlloyTeeth: 32T, 34T, 36T, 38T (Optional)BCD: 104BCDFeatures: Durable, Easy Install, ReplacementNotes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bike Chainring