Features: 1. Made of premium 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 perfectly the 104mm bolt pattern, 32, 34, 36, 38 teeth for choosing. 5. An great replacement for bike repair. Specification: Material: 7075 Aluminum Alloy Color: Black, Red (optional) specificationBCD104 Teeth: 32, 34, 36, 38 (optional) Weight: Approx. 50-73g Package Included: 1 x Bike Chain Ring Only Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Made of premium 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 perfectly the 104mm bolt pattern, 32, 34, 36, 38 teeth for choosing. 5An great replacement for bike repair.