Wheel Go/No-Go Gauge

$19.95 each In stock


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This Wheel Go/No-Go Gauge will help you improve your race by providing a consistent and quick way to inspect wheels while they are mounted on the car.

The gauge allows you to easily measure the following criteria:

  • Wheel Diameter - Accurately and quickly verifies compliance with a 1.170 inch and 1.180 inch wheel diameter specification. Just gently attempt to slide the gauge over the wheel. If the gauge will not slide over the wheel, then the wheel complies with the specification. If the wheel almost fits into the gauge, try again at a different spot on the wheel.
  • Wheel Width - Verifies quickly and accurately whether the wheel complies with a 0.320 inch or 0.360 inch overall wheel width. These measurements correspond to a 7mm and 8mm tread patch width on most wheels.

    When inserting a wheel, make sure it is inserted straight. Compliant wheels can be inserted at an angle, making them appear to be non-compliant.

Notes:

  1. Do not force the gauge over a wheel. The gauges are sized one-thousandth of an inch smaller than the printed measurement. So if, for example, a wheel measures exactly 1.170, it will not fit into the 1.170 OD gauge (because it complies with the 1.170 minimum OD specification).
  2. The gauge measures the overall width of the wheel including the sidewall. The tread patch is not measured by itself, as it is not easily measured on most wheels. When measuring the wheel width, measure at a point on the wheel where there is no raised lettering.
  3. If your organization uses a slightly different specification for diameter or width, consider changing the specification to those supported by the tool.
  4. Tip: To make sure the correct gauge is used, tape over the gauges that are not to be used.
  5. If a car is built with wheel wells, the OD gauges cannot be used (of course a digital caliper cannot be used in this situation either).

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