Minoura Workman True Pro Bicycle truing stand

Bike can be maintained by ordinary riders. not only by professional mechanics, so there are a lot of tools and parts available in the market.
In this situation, wheel maintenance has been called as "Final Halidom".

The bike wheel is constructed with wire spokes and nipples, so the spoke tension must become loosened after use by shocks and vibrations.
The most visible deformation is Side Shaking. It's not just bad looking, it will cause unnecessary resistance by the brake shoe touches the rim, and will decrease stability.

And there is another deformation on bike wheel that you may not feel so easily; Vertical Shaking.
If you feel the bike jumps up at intervals when riding on road, you should doubt this Vertical Shaking. It could be difficult to find out if the tire air pressure is low, but it surely disturbs your comfortable riding.

Wheel truing stand is the measuring device to check if the wheel is being kept in correct condition. You will adjust the deformation on this stand by using spoke wrench.
Wheel truing requires very high skill, but once you can get success on this difficult job, you should love your bike more.

True Pro 2 is the portable type tool for this wheel truing maintenance.v

Bike wheel is constructed with many spokes coming from the hub, and the nipples hold the spokes on the rim. Nipple has thread inside, and it will pull the spoke when it's turned.

Prior to wheel truing maintenance, you should check if each spoke tension is OK or not.
Loosened spoke tension will happen the wheel deformation again shortly, and too tight spoke tension will break the spoke if you get hard shock. The spoke tension is measured by a special spoke tension meter.

Next, rotate the wheel slowly (do not spin fast) and check the clearance between the rim surface and the gauge.
If the wheel has been deformed, you will see the clearance is not equal. Wheel truing means to make every clearance equal.

You should keep the basic theory to expect correct result;
1. Keep the correct spoke tension
2. Tighten the nipple coming from opposite side of shaking
(For example, if the rim shakes rightward than the center, you must tighten the nipple on the spoke coming from left side)
3. Do not loosen the nipple

For more detailed information about this maintenance, refer the guide books or ask to the skilled mechanic.