tgpSize™ contains tire size data historically included in Tire Guide Pro™, an industry standard for original tire sizes for vehicles manufactured since 1980. tgpSize™ data is parsed to provide you with complete flexibility, allowing the data to be used for multiple purposes and configurations. Tire sizes are broken down into individual components that allow you to easily match products in your tire catalog. Where Load Indexes were not specified for the original vehicle tire, tgpSize™ provides an alternative industry standard load index for that tire size. Embedded speed ratings are also presented for making decisions associated with "open-ended Z" tires. Further, flags are included to indicate if a tire came with a run-flat option, Tire Pressure Monitoring System, and/or directional/asymmetrical right/left fitments.

tgpSize™ vehicle descriptions can be cross-referenced to ACES vehicle ID’s using tgpCRU™. We can also provide you with a customized product that contains only a portion of the data included in tgpSize, or that contains all or a portion of the tgpSize data in combination with data from our other products. Please contact us for details.

A country specific code is provided to differentiate fitments by country. Currently, support is available for the United States and Canada.

Contact Us for Demos / Samples


tgpMount™ contains data for properly installing a tire/wheel combination to the same specifications that were originally used. Original values for lug nut torque and wheel width, contour, diameter, and offset, as well as bolt circle dimensions, bolt pattern, center hub dimensions and stud dimensions, are provided. All of these values are keyed to the vehicle descriptions used in tgpSize™, which can be keyed to ACES vehicle ID’s using tgpCRU™.

tgpMount™ also includes codes to provide vehicle definitions and fitments specific to your supported country of interest. The data in tgpMount™ can be mixed and matched with our other products to satisfy your needs. Please contact us for details.

Contact Us for Demos / Samples


Original vehicle manufacturer recommended inflation pressures are available in tgpPSI™.

The inflation pressures are keyed to the vehicle descriptions used in tgpSize™, which can also be keyed to ACES vehicle ID’s using tgpCRU™. The data in tgpPSI™ can also be mixed and matched with our other products to satisfy your needs. Please contact us for details.

Contact Us for Demos / Samples


tgpOEM™ provides information regarding tires that originally came with a new standard vehicle. The tire brand, brand line, and in most cases, the part number of the original tire(s), are included for many of the vehicles in tgpSize™. This data is useful for research purposes and matching the part numbers with your tire catalog or ours (tgpBrands™).

The data in tgpOEM™ is keyed to the vehicle descriptions used in tgpSize™, which can be keyed to ACES vehicle ID’s using tgpCRU™. The data in tgpOEM™ can also be mixed and matched with our other products to satisfy your needs. Please contact us for details.

Contact Us for Demos / Samples


tgpPlus™ is a valuable tool in determining tire fitment options, providing alternate fitments for +0 through +2 wheel dimension changes. tgpPlus™ is unique, containing dimensional information, as well as load requirements, for replacement tires. Proper load analysis can assist you in determining whether the replacement tires will maintain the same load bearing capability as the original tires.

The data in tgpPlus™ is keyed to the vehicle descriptions used in tgpSize™, which can be keyed to ACES vehicle ID’s using tgpCRU™. The data in tgpPlus™ can also be mixed and matched with our other products to satisfy your needs. Please contact us for details.

Contact Us for Demos / Samples


Tire Guides, Inc., is a recognized leader in the automotive industry, delivering excellence in vehicle information for over 60 years. Our publications and products, including our renowned Tire Guide, have been established as valuable industry resources, and are distributed worldwide to tire dealerships, automotive centers, and tire manufacturers, as well as forensic lab units and emission testing stations. Please visit the Tire Guides website for more information and to order our printed fitment publications, wall charts, and tools.