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Cover Story - April 2015

Wheel fasteners

By: Mike Mavrigian

Wheel fasteners are arguably the most important components on any vehicle, responsible for securing the wheels to the vehicle, yet are often the least understood and appreciated. This brief article offers a basic overview of the often overlooked threaded wheel fastener — how to identify it and how to handle it.

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Article

Balancing performance tires

Saying technology has changed over the last decade might be one of the greatest understatements that I’ve ever made. In 2005, tire pressure monitoring systems (TPMS) were primarily reserved for high-end luxury and sports cars. Anti-lock braking systems (ABS) and electronic stability control (ESC) were options. And people who thought the Blackberry was a smartphone were surprised when the first video was uploaded to a new video hosting service called YouTube.

Examples of tire and wheel vibrational issues. The illustration at the top depicts an imbalance condition wherein dynamic imbalance results in the tire’s contact patch deviating from the axle center as the wheel rotates. The center row is an example of radial runout, where the wheel is not properly centered on the hub. The bottom row depicts radial force variation where a high spot on the tire (or an area of the tire that is more dense/stiffer than the rest of the tire) is present.
Article

NVH issues and answers

In this article, we’ll address a variety of noise, vibration and harshness (NVH) issues. We’ll also offer tips on how to avoid and/or cure these ills.

The new counter works for both the dealership’s employees and their customers. It is now clean, efficient and ready for the next 100 years.
Article

100 years old and open to change

Since 1911, Daniels Tire Service has been serving the greater Los Angeles and surrounding areas with dependable, quality products and service. Daniels Tire Service is a premier provider of commercial tires and operates a collection of retail tire and automotive repair locations.

A special edition Koenigsegg Agera was on display at the 2015 New York International Auto Show.
Article

Hyperactive imagination

You may have noticed the sweet looking, perhaps unfamiliar monster of a vehicle on our front cover. That is a hypercar, specifically a 2015 GTA Spano from Spania GTA Tecnomotive S.L. It features a V10 twin-turbo engine capable of 925 horsepower. And a $650,000 price tag.

Figure 1: Identifying the driver information center (DIC) buttons. Art courtesy of General Motors Corp.
Article

2010-2013 Chevrolet Equinox and GMC Terrain

The tire pressure monitor system (TPMS) of the 2010 – 2013 Chevrolet Equinox and GMC Terrain uses the instrument panel cluster (IPC), body control module (BCM), four radio frequency transmitting pressure sensors, and the serial data circuit to perform the TPMS relearn mode functions.

The consistent tread block rigidity of the new g-Force Comp-2 A/S tire resists irregular wear typically associated with directional tread design, according to the company.
Article

BFG tour challenges dealers to test the new g-Force tire

The new BFGoodrich brand g-Force Comp-2 A/S comes in more sizes, is more durable and has more all-weather capabilities than its predecessor. Michelin North America Inc. says 50% of the volume of the new ultra-high performance Z-rated tire will come from new sizes.

The BH03 was one of two futuristic tire concepts from Goodyear on display at the Geneva Motor Show.
Article

An insight into tomorrow’s tires

It has certainly been a period of “show time” in Europe in the past couple of months with the internationally prestigious Geneva Motor Show in Switzerland, following February’s Tire Technology Expo in Germany (which I reported on in the March edition of MTD).

Alliance says it developed the Galaxy Giraffe XLW with extremely sturdy sidewalls, special tread design and a very large, flat footprint to handle dynamic loads and provide stability for the operator.
Article

Sales of industrial tires pick up as ports and construction sites get busier

When the mining industry slumped, OTR retreader Noah Hickman of H&H Industries Inc. looked elsewhere for business. “We’ve branched out into markets such as ports, construction, and other areas to combat the slowdown of the coal market,” says Hickman, whose Oak Hill, Ohio-based company holds the No. 25 spot on Modern Tire Dealer’s “2015 Top 100 retreaders” list.

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