http://www.bikeradar.com/...tipping-point-51685/
Shimano: "We have not been able to meet demand for Dura-Ace and Ultegra hydraulics. There is a good chance we will see disc eclipse rim brake in total sales in 2018.”
SRAM: "For model year 2018 product, discs represented 67 percent of all sales, Zellmann says, compared to 44 percent for model year 2017. (Model years are often a year ahead of the actual calendar. For example, SRAM sold MY2018 brakes during 2017.) Of those MY2018 sales, discs represented a whopping 87 percent of road brakes sold as OE to bike brands, according to SRAM. For aftermarket sales, discs represented 13 percent of road bike sales."
Shimano: "We have not been able to meet demand for Dura-Ace and Ultegra hydraulics. There is a good chance we will see disc eclipse rim brake in total sales in 2018.”
SRAM: "For model year 2018 product, discs represented 67 percent of all sales, Zellmann says, compared to 44 percent for model year 2017. (Model years are often a year ahead of the actual calendar. For example, SRAM sold MY2018 brakes during 2017.) Of those MY2018 sales, discs represented a whopping 87 percent of road brakes sold as OE to bike brands, according to SRAM. For aftermarket sales, discs represented 13 percent of road bike sales."