Effetto Mariposa Giustaforza 1-15 PRO Deluxe Torque WrenchThe torque wrench is an essential piece of kit for every cyclist, and the Giustaforza 1 15 PRO Deluxe torque wrench from Effetto Mariposa is our favorite. Besides being a beautiful tool, its incredibly accurate and will reliably torque to within + 4% of your target goal for over 5000 clicks before recalibration is required. There are so many parts on the bicycle that require precise torquing. But if your whip sports any particularly exotic components,