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.