Wheel and tire guides.
Plain answers.
Everything you need to know before you buy new wheels, without the forum noise.
Wheel offset explained: positive, negative and backspacingWhat wheel offset is, how it differs from backspacing, and how to tell whether a new wheel will poke past the fender or rub the suspension.5 min readPlus sizing: bigger wheels without wrecking the rideHow to move to bigger wheels the right way: keep the overall tire height within 3%, pick the right sidewall, and know what changes in ride, cost and handling.5 min readWill 20-inch wheels fit my truck? What to check firstBefore you buy 20s for a pickup or SUV: bolt pattern, center bore, offset, brake clearance, tire height and load rating, in one checklist.6 min readHow to read a tire size: metric, LT and flotationWhat every part of a tire size means, from 265/70R17 to LT285/75R17 and 35x12.50R20, plus load index and speed rating, and where to find the size on your vehicle.4 min readWheel and tire packages: what to check before you buyWhy most new wheels are bought as a mounted and balanced package, what should come in the box, and the checks that make sure it bolts on and drives right.4 min read