So you've been thinking about doing a 1x wide range drivetrain but don't want to shell out for Sram X01 or XX1??? We've got you covered with the OneUp components 42t cog ($100). Our staff has trail tested these things and they work exceptionally well - especially when combined with the 16t cog provided (free!) and the OneUp RadR cage ($65). We’ve got everything you need from OneUp Components - in stock and ready to be installed by our team of professional mechanics.