Garbaruk Chainring Features:- Special Tooth Shape Guarantees A Tighter Contact With Chain And Softer Pedaling (In Comparison With Regular Chainrings)- Chamfered Edges And Wide Mud Gap Keeps The Ring From Getting Muddy- Increased Tooth Height Improves Chain Retention While The Bike Is Shivering And Jolting- Overall Bicycle Weight Reduction In The Range Of 150-400 Grams (With No Front Derailleur And Chainguide)- Manufactured Using Highly Durable Aluminum Alloy- Variable Teeth Thickness Prevents Chain DroppingSpecifications:- Model: 30t, Offset 2.6mm - Chainring Shape: Round- Offset, Mm- 2.6 (30t-32t)- Made From: 7075-T651 Aluminum Alloy- Surface Coating: Anodizing- Made With: Cnc Milling- Compatible Cranksets: Shimano M6000/M7000/M8000 1x/2x- Weight, Grams: 38 (30t)- Chain Compatibility- Compatible With All 9,10,11-Speed Chains, 12-Speed Sram Eagle, Kmc, Shimano Hg+ Chains