![Zinn technical FAQ: Gear choice for optimal efficiency, dead Di2, Mavic 10/11 switch](https://zinncycles.com/wp-content/webpc-passthru.php?src=https://www.velonews.com/wp-content/uploads/2021/04/SRAM-Rival-cassette-and-chain.jpg&nocache=1?width=1200)
The most efficient gear choice may not be what you think it is.
Read the full article at Zinn technical FAQ: Gear choice for optimal efficiency, dead Di2, Mavic 10/11 switch on VeloNews.com.
The most efficient gear choice may not be what you think it is.
Read the full article at Zinn technical FAQ: Gear choice for optimal efficiency, dead Di2, Mavic 10/11 switch on VeloNews.com.