Features1Made of 7075 aluminum alloy, which is lightweight, adding no heaviness to bike. 2High strength and deformation resistance, durable for long time use. 3Standard teeth design, which ensures ultimate chain retention, increases wear life, and reduces friction and noise. 4Easy to install and fits ly the 104mm bolt pattern, 32, 34, 36, 38 teeth for choosing. 5An great replacement for bike repair.SpecificationFeatures:1. Made of 7075 aluminum alloy, which is lightweight, adding no heaviness to bike.2. High strength and deformation resistance, durable for long time use.3. Standard teeth design, which ensures ultimate chain retention, increases wear life, and reduces friction and noise.4. Easy to install and fits ly the 104mm bolt pattern, 32, 34, 36, 38 teeth for choosing.5. An great replacement for bike repair.Specification:Material: 7075 Aluminum AlloyColor: Black, Red (optional)specificationBCD104Teeth: 32, 34, 36, 38 (optional) Weight: Approx. 50-73gPackage Included: 1 x Bike Chain Ring OnlyPackage List