Introducing our lightweight outer chainring designed specifically for use with BCD107 powermeters and spindles. With the same advanced characteristics as our popular Aero and Classic Bart's Chainrings, this lightweight chainring offers optimal performance and durability. It is constructed with high-quality materials to ensure maximum power transfer and efficiency during your rides. This chainring is available as a set, paired with a small chainring that is specially made for flat top chains, offering a complete solution for your cycling needs. Upgrade your bike with our lightweight chainring set and experience the difference on the road or trail.