The Park Tool TM-1 Spoke Tension Meter accurately and reliably measures the absolute tension of each of the spokes in a wheel, as well as the relative tension between all the spokes in a wheel. Easy to use and priced affordably, the TM-1 works on nearly any bicycle spoke—no matter what the diameter, material, or shape. The TM-1 is for anyone building or truing wheels, diagnosing wheel problems, or assembling new bikes. It’s a tool that belongs on every workbench. Park Tool TM-1 Spoke Tension Meter Features Achieving that perfect spoke tension Fits almost any size, shape or material spoke Gives you a measure of the relative and absolute spoke tensions within a wheel Clear and easy to read gauge A must for any serious wheel builder Made in the USA and covered by Park Tool's legendary limited lifetime warranty More info