Tire Rack Tire Tech Library
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Extensive free guides on tire maintenance, rotation, pressure; frequently linked in Reddit mechanic subs
More resources on Tire Maintenance
Discount Tire Learn Center
Practical tire care tips from pros, upvoted in r/tires
NHTSA Tire Safety
Official free U.S. government tire maintenance and safety resources, top rec for basics
tireindustry.org
The Tire Industry Association (TIA) website serves as a hub for tire professionals, offering industry news, safety standards, and extensive training and certification resources, plus maintenance best-practice guides and technical information.
autozone.com
AutoZone.com is a leading automotive parts retailer offering tires, batteries, brakes, and maintenance supplies, along with DIY guides and how-to articles. It provides tire buying options and installation services, plus step-by-step tutorials on tire maintenance topics like checking pressure, rotating tires, checking tread wear, and tire safety.
repairpal.com
RepairPal is a car repair resource that provides price estimates and a directory of RepairPal Certified shops. It also offers maintenance guides and how-to articles, including tire care tips and routine service information.