First the Environment Recommendations

The surface temperature should range from 50 to 90 degrees F - remember this is the SURFACE Temperature, not the air temperature.

If the surface is too hot to touch then it is probably over the 90 degrees F.

Adhesive on the vinyl becomes gummy when it is too hot, and when the surface is cold the vinyl becomes brittle, and will cause problems with adhesion as the surface can sweat as it gets warmer.

Outdoor application is discouraged, but can be done on a good day, without a wind. Blown dust, dirt or other items can interfere with the bonding of the decal to the vehicle, plus you have a good chance of having the thin stripes blown around, so achieving a good look will be a lot harder.

Clean, clean, and clean the surface. Just a quick wash with some soap and water will not do unless you are very lucky. Surfaces on vehicles tend to get a film of oily substance on them, which is hard to see or even feel at times. You need to wash and then use something like Isopropyl Alcohol, if careful acetone works. Something that will not leave any residue behind. Failure to do this or impatience and the will to get it done quick, is very likely to cause failure.

You have been warned!!!

What to do - Wet or Dry installation?

The dry method does not really allow for any mistakes, once you start to press the vinyl decal on and the adhesive starts then it can be hard to pull back without distorting the decal/vinyl. The dry method is quicker though.

The wet method allows for some repositioning of the decal/vinyl. You spray a solution of soap and water (or you can get the special application fluid) onto the surface. You apply the decal/vinyl, but now the surface is slippy so you can move it around a bit and then press down with a paper towel to start the adhesion process. Takes longer, but is a lot more forgiving.

OK so now we have gathered all the bits needed, you have the knife or scissors to cut, squeegee (or your thumb on rim tapes works) Clean dry cloths, or paper towels and if the wet method the soapy solution or application fluid.
Oh.. better tell you how to make up a quick cheap batch of the soapy water. In a pint container (or similar) add water, then add in a few drops of liquid soap (dish washing soap is fine).
Gently mix (you don't need bubbles). Feel the solution in your fingers, if it's tacky and slimy you used to much soap, if your fingers when rubbed together feel quite grippy, then you probably have too little soap. The solution needs to feel just slippery, smooth. If you can test it, put some solution onto a clean surface and use a small amount of the vinyl decal (a spare bit that is - don't go cutting the main decal up) use the small piece of vinyl and see if it will gently slide over the surface a bit. If it does then you are good to go.

Application is basically the same wet or dry, just with the wet method you spray the surface first, and dry after.

If using the rim stripes, it is best to cut each one out from the sheet first. Peel the vinyl stripe back about 2-3 inches then spray and place (wet method), or just place the strip onto the rim edge, when happy with the position, press it down gently and slowly follow the rim edge around the wheel until the first strip is on, peeling back the backing paper as needed. The stripes Vehicleartz sells are pre curved to make fitting easier, but you may need to flex them slightly as you apply, just follow the rim around. The vinyl strip is flexible, but if you pull too much it might distort.

If happy start pressing down firmly on that strip (careful not to move in the wet method).

Ok onto the second strip, you can butt it up to the first one or even have a very slight overlap, take your time to match the ends up square. Follow from step one above until you are back to the start (don't forget to move the wheel around as you go) When all done you will probably have some excess strip left, either carefully cut it off (I tend to just overlap a very small amount and then cut to make sure I don't mess up and leave a small gap), or you can just carefully overlap it all and press down. You will have some spare stripes in the kit, so if you make a mistake it is not so bad or if you have a gap when finished, just use part of the spares to fill in.

Rim stripe installation
One or First stripe fitted
Second stripe fitted
Third wheel rim stripe fitted
First Wheel Rim Stripe fitted
Second Wheel Rim Stripe fitted
Third Wheel Rim Stripe fitted
Forth Wheel Rim Stripe
Final stripe fitted, tape overlap shown
 
Forth Wheel Rim Stripe fitting
Final stage - all done
 

If using the wet method, press down with a paper towel to dry off the excess fluid and leave for about 30 minutes to an hour, dry method just 5 to 10 minutes.

Check for any bubbles, see if they will carefully press out to the side, if not don't force it or the vinyl decal might crease. Take a pin and just prick the bubble, press gently from the edge to the small hole you made. By using a pin it can stop a slit being made which tends to just get bigger. Just make sure the tape has pressed down firmly all the way around.

The adhesive is normally strong enough for you to ride after a couple of hours, but gets to full strength in 24 hours.

Try to keep the vehicle in the 50 to 90 degree F range. It can be not so good if they get too cold or hot when just applied. Most people can have this fitted in less than an hour, including the clean, but just take your time.

Removal

Just warm the vinyl decal ( I used to borrow the hairdryer, but decided to buy a heat gun after my stay in Hospital), and once it starts to get hot the adhesive will become softer and you can then carefully peel it off. Reflective vinyl tends to be a lot harder to remove and we have found that putting a good strong clear tape over it before removal helps keep it together and remove easier.

Well hope this has helped or will help in your fitting of the rim tape stripes.