WheelWise® Wheel Fitment Tool easily determines proper backspacing specs for custom wheel fitment. Wheel measurement tool mounts inside tire so that actual tire size desired can be test fit to vehicle. Wheel simulator tool allows user to confirm wheel and tire clearance to body, frame, and suspension. Laser cut and press bent from 10-gauge steel in house at Speedway Motors. Laser etched designations, including wheel bolt pattern, wheel diameter, and more. Provides direct measurement of wheel back spacing to order new or custom wheels. Wheel fitment tool supports 14 to 22 inch wheel diameters and 7 to 17 inch wheel widths. 5-lug wheel bolt pattern fitments include 5x4.5, 5x4.75, 5x5, and 5x5.5. 1/4-20 carriage bolts and wing nut hardware provide quick, tool-free adjustments. No Longer Second Guess Wheel Measurements for Your Custom Build Needs Much like wiring, measuring for proper wheel fitment and tire fitment is considered a stressful adventure in the automotive hobby. It’s nothing for most enthusiasts to bolt on some performance go-fast bits, or even weld up an exhaust system, but when it comes to figuring out what wheel dimensions will work (or that aforementioned wiring) all bets are off and the second guessing starts in earnest. Sure, some will throw a spare wheel that is lying around the shop on the car and check fitment, or even borrow a wheel from a friend. Still others will ask total strangers on social media what “should” fit and hope they’re correct. Why not take the stress and inaccurate guesswork out of your wheel fitment and tire fitment with our new WheelWise® wheel fitment tool on your next project? Accurate Wheel Measurements in Minutes with the Tire Sizes You Plan to Use Confirming your wheel specs, including backspacing and offset, to order new or custom wheels can be accomplished in no time with our WheelWise® wheel backspacing tool. Simply assemble the WheelWise® wheel fitment calculator tool extensions inside the tire you plan to run and secure the sidewall clamps. Bolt the hub mounting plate to the extensions and you’re ready to mount your tire and take some measurements with our WheelWise® wheel offset tool! It’s that easy! Our WheelWise® wheel fitment tool is made from 10-gauge steel and laser etched with pertinent measurement points. Our wheel offset tool is much sturdier than plastic models that have been on the market (that don’t use an actual tire) and is a much better value than the cast aluminum models as well, with precise wheel bolt pattern mounting options in all major five-lug bolt patterns using 1/2-inch studs, plus 5x4.75 with 7/16-inch studs. These specific wheel bolt patterns and stud hole sizes create a much more accurate mounting versus universal slots that inject slop into your fitment check. Everything you need is included in the WheelWise® wheel fitment tool kit to measure for 14 to 22 inch wheel diameters from 7 to 17 inches wide! Just supply the front and rear tire sizes you will be using, assemble and mount the wheel measurement tool with tire secured to your axle flange or front hub. Once secured with at least two wheel lug nuts you can check for frame and suspension clearance by cycling your suspension up and down with a floor jack (unbolting or removing your shocks/coilovers may make this easier). Turning your front wheels from lock-to-lock will confirm steering angle changes will not create tire to frame/sheetmetal interference as well. Easily loosen the wing nuts and adjust the wheel measure tool backspacing for optimal tire clearance and then lock the adjustment down. Remove the WheelWise® wheel backspacing tool and measure your final backspacing needs to order your new or custom wheels. NEW! Expand your wheel fitment tool with additional lug mounting plate options! We have launched additional lug pattern mounting plates to expand the WheelWise® tool’s ability to test fit tire combinations onto just about anything