Refitting a tensio to work with Wheel Analytics can be pretty easy. In this video we’ll refit a typical tool, this one imported from Asia but similar to tensiometers from a dozen or more manufacturers. This particular tool is well-constructed with a ball bearing pivot. The factory dial indicator is its weakness but we’ll replace it with a digital upgrade.

The indicator is released by loosening a single set screw on the back of the tool. With the indicator removed, the stem is measured. There are two common sizes — 9.5mm (3/8″) and 8mm (5/16″) — and this tool uses the latter. Mitutoyo 543-781B features an 8mm stem so it’s a direct replacement. Insert into the bore and secure with the same screw. Job done.

Compatible indicators are commonly available in most global markets or available direct from Islandix.

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