Sizeitup is a FREE tool designed to provide users with all the information necessary for plus-sizing tires and aftermarket wheels. Sizeitup’s detailed wheel & tire application guide also provides all the fitment specs for every vehicle. Here is a list of just some features included in Sizeitup.

Use the Ride Recommender to see which plus-size tire will fit your ride the best. This tool provides many choices of accurate plus-sizes so you can determine the correct upgrade for any vehicle.

Or use the Wheel and Tire Application Guide to search information such as bolt pattern, hub bore, offset, lug nut thread, OE tires size, and optional tire sizes for any vehicle.

And if that’s not enough use our WHEEL SHOWCASE to select and view
which wheels will fit a certain vehicle with a recommended tire size to match. Sizeitup also includes a list of all tires sizes ranging from 15” all the way to 30’s so you can see what tire sizes are truly available.

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Want to see what everyone else is doing. Check out our FORUM & GALLERY for all the latest and greatest rides and answers to all your fitment needs, or just to chat with other experts in the industry.

It's all FREE, Login today and start using the most complete tire & wheel plus-sizing / application guide in the industry.