SKU: QRP56-104
UPC: 819616011849
MPN: 56-104
The QUICKCAR RACING PRODUCTS Tire Tread Depth Gauge (model 56-104) is a mechanical, analog gauge built for racers, crew members, and shop techs who track tire wear closely. It reads tread depth in 1/32 inch increments across a 1/32 to 7/16 inch range, giving a clear picture of how much rubber is left and how evenly a tire is wearing. There are no batteries and no electronics to fail in the pits. For anyone managing a set of slicks or street tires, this is a simple way to confirm that the full tire patch is making contact with the track.
The gauge uses a professional scale graphic that measures wear directly in 1/32 inch steps, so readings are easy to take and compare across all four corners of a car. The body is an aluminum housing that holds up to repeated use in a working shop or trailer, and it ships in a carrying case to keep it protected between sessions. The probe drops into the tread groove and the sliding scale registers depth without guesswork. It works alongside other measurement tools in a tire program, including a stagger gauge for circumference checks and a tire durometer for compound hardness. Together those readings tell you when a tire is done and when it still has laps left.
Tread depth tracking is the backbone of any tire log. Checking inside, center, and outside grooves shows whether camber, pressure, or alignment is pulling a tire unevenly, and lets you rotate or retire rubber before it costs you grip. Racers use it to compare wear from run to run; street drivers use it to know when a tire is legal and safe. Drop it in a tool drawer or pit cart and it stays ready. Pair it with our broader selection of tire tools or browse the full lineup of shop tools and equipment to round out your setup.
It reads tire tread depth from 1/32 inch up to 7/16 inch, in 1/32 inch increments. That range covers everything from a worn-out tire near the legal limit to fresh rubber with deep grooves, making it useful for both race tires and street tires.
No. It is a mechanical, analog gauge with a sliding scale and probe. There are no electronics or batteries to fail, so it stays reliable in the pits, in a trailer, or in a shop drawer year after year.
Checking the inside, center, and outside grooves shows whether a tire is wearing evenly. Uneven wear points to camber, pressure, or alignment issues. Catching it early lets you adjust setup, rotate the tire, or retire it before it costs you grip on the track.
The gauge ships with an aluminum housing and a carrying case to protect it between sessions. The professional scale graphic measures wear directly in 1/32 inch steps for quick, repeatable readings across all four tires.
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