Description: Positive and negative tooth design makes the chain fit with the tooth shape and effectively reduces the chain jitter. CNC craft and integrated design ensures high hardness and stable structure. Oval shape improves the speed of pedal frequency and provides better power support in the process of climbing. It is constructed of CNC aluminum alloy material, which is lightweight, wear resistant and rustproof. Compact and lightweight design makes it easy to store and carry. It is compatible for 7-12 speed. Item Name: Oval Chainring Material: CNC Aluminum Alloy Specification: 104BCD Teeth: 32T 34T 36T 38T Features: Wear-resistant, Lightweight, High Strength Size Details: Size: 104BCD Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Oval Chainring