True all sizes of bike wheels, bmx, road, and mountain bike.
How to true wheels...
First, remove the wheel from the bike and remove the tire and tube before placing it in the truing stand. Adjust the arm and caliper on the stand so that the caliper is just shy of touching both sides of the wheel. Now, spin the wheel and slowly close the stand's calipers until they scrape against a spot on the wheel.
Once you've found a spot where you are out of lateral true, tighten the spoke or spokes on the side opposite the bump, and loosen the ones that are pulling it out of true. Be patient while doing this - you shouldn't be going more than a quarter turn at a time while truing like this. If the spokes are giving resistance, try over turning slightly, and turning back to where you intended.
After you've gone through several passes like this, you should check the vertical true of the wheel to make sure that you haven't put it out of round. Re-adjust the arm and caliper of the stand so that the calipers are together and just underneath the rim. Spin the wheel, and this time adjust the arm until the wheel begins to scrape.
While adjusting for vertical true, you should tighten the spoke at the center of the hump, and tighten the spokes to the sides one half as much each. Because these spokes will be on opposite sides of the wheel, this will ensure that you don't put the wheel very much out of lateral true. If the hump is between two spokes, tighten them equally. Adjusting the spokes in one place will affect another section of the wheel, somewhat like squeezing a balloon.
After this is done, you should check for lateral true and even tension, retruing for both lateral and vertical true if the wheel is out.
If the wheel is properly trued and tensioned, you should stress test the wheel by placing it on one side and pressing down on it fairly firmly. You should repeat this going around the wheel, in order to be sure that the spokes settle into position with the spokes that they cross now and not while the wheel is being ridden.
; "Wheel Truing Stand")