Bike wheels rely on spoke tension to suspend the rim around the hub. Wheel truing is the process of adjusting this tension to affect how straight the wheel spins.
Super B Professional Mechanic Wheel Truing Stand - Carolina Pedal
Advanced technique: Truing wheels properly - Canadian Cycling Magazine
Wheel Truing (Lateral & Radial)
How Wheel Truing Works
What can mechanics teach us about wheel truing?
What can mechanics teach us about wheel truing?
How to true a bicycle wheel 4 essential principles to get your
WEST BIKING Wheel Truing Stand Dial Indicator Gauge Tire Rims
Wheel Truing (Lateral & Radial)
WHEEL LACING AND TRUING - Welcome