Saw a couple last year, the guy looked pretty well fitted but took him 15 minutes to put air to his bike with a simple foot pump, the chick probably did not know how to cook a fried egg. Went with my pump grabbed the chick bike with his authorization and put air to both wheels in 2 minutes, told the girl.. "as you can see its rocket science
, neither know english (extra smile)"
That being said... If you have no idea what are u doing, don't have the tool to do it and you are basically mechanical impaired, the best you can do is to let the shop to do it. besides common sense and know how to figure it out a 10 pieces jigzaw there is nothing out of this world to do that job yourself. Did not want to be rude but some people really have problems in some depts and should not touch a tool ever.