TM-1 Spoke Tension Meter

Ensure stronger, longer-lasting wheels with the Park Tool TM-1 Spoke Tension Meter — an essential tool for wheel builders, mechanics, and anyone diagnosing wheel issues. Proper spoke tension is the key to wheel strength and longevity, and the TM-1 provides a fast, accurate way to measure and analyze tension across any wheel.

The TM-1 offers precise readings that reveal spoke-to-spoke tension variation, helping identify high or low tension areas. These readings can be converted to kilograms-force (kgf) using the included tension chart or the Park Tool Wheel Tension App, which also offers interactive analysis and visual tools for complete wheel evaluation.

Compatible with nearly all spoke types and materials, the TM-1 includes an integrated spoke gauge for quick measurement of six common round spoke diameters. Bladed spokes may require additional measuring tools. Made in the USA, the TM-1 is fully rebuildable and recalibratable for a lifetime of dependable use.

Features

• Provides fast, accurate measurement of spoke tension

• Helps identify tension variations for building, truing, and diagnostics

• Converts readings to kgf using included chart or Wheel Tension App

• Works with almost all spoke types and materials

• Includes integrated spoke diameter gauge (six common sizes)

• Made in the USA; fully rebuildable and recalibratable

Compatible Spoke Materials

• Steel (round & bladed)

• Aluminum (round & bladed)*

• Titanium (round & bladed)*

• Spinergy® PBO

• Mavic® R2R Carbon Fiber

*Conversion data available only for select aluminum and titanium spoke sizes.