You know that $300 carbon bar you just bought? Don't guess when tightening it. Know exactly. Topeak's D-Torq DX is a precision digital torque wrench made from hardened steel. It features an audible alarm when you hit your mark and when you start to over tighten. The reversing ratchet mechanism in the head has convenient thumb articulation and a range of 4-80 Nm. The LCD readout makes it easy to know exactly where you are and can calculate Nm/kg, Nm/cm, inch/lbs and foot/lbs.