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Problem Solvers is a brand that, not surprisingly, offers solutions to bike problems. This chain tensioner that alows a bike with a derailleur to be set up as a singlespeed is one such example. Jake Wells' 2018 Nationals-Winning Singlespeed Scott Addict CX. © D. Mable / Cyclocross Magazine

Problem Solvers is a brand that, not surprisingly, offers solutions to bike problems. This chain tensioner that alows a bike with a derailleur hanger to be set up as a singlespeed is one such example. Jake Wells’ 2018 Nationals-Winning Singlespeed Scott Addict CX. © D. Mable / Cyclocross Magazine