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Measuring gauge for measuring the effective rim diameter up to the nipple seat = ERD (effectiv rim diameter)
Through the screwed nipples, the actual length is determined to the end of the nipple.
This was previously not possible with this precision, there was no measuring tool for it.
Many rims are without specifying the effective inside diameter for calculating the spoke length.
As manufacturer specifications are sometimes inaccurate, or up to 2 mm manufacturing tolerances occur, the professional tool is a “must” for professional wheel.
The assessment with the meter measure has an end. Precisely comprehensible values also for inside nipple seats.
Universally suitable for all rims up to 90 mm rim height (except UST rims = tubeless with nipple holder)
Measurable range Rim diameter 0 cm to 71 cm
Robust workshop execution

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