Park Tool Professional Wheel Alignment Gauge

For a bicycle wheel to perform properly and safely, it is important for the rim to be centered between the locknuts of the hub, or "dished." The WAG-4 is an accurate and versatile alignment gauge that provides a measurement of the dish in order to determine if adjustment is necessary. Compatible with virtually all road, mountain, BMX, and cruiser wheels. The sliding spacer blocks of the WAG-4 offset the tool from the rim, allowing for accurate measurement even when the tire is still mounted on the wheel. Measures centering on rims that fit 16" to 29" tires Measures centering on rims with ETRTO or ISO sizing of 305-630 Compatible with any hub width