Oneup Components is 10 years old today. The idea for our first product came about back in 2013 when Jon, one of our founders, broke his brand new, recently launched, SRAM XX1 derailleur. Replacements weren't readily available so he tried to make his old Shimano 10 speed cassette work for 1x. He designed and made a 42T sprocket to widen the range of the cassette. It actually