I have had 4 different bike shops work on it over time and 3 have told me the brakes would not stop the bike . After I showed the mechanics at 2 of the shops they believed me particularly after testing them for themselves . Not something I have a problem with as I am a hands on kind of person myself . The 4th one told me they wouldn't work without even testing them . And when I asked him to just look at them he gave me a song and dance about how he was manager of repair and told me he had 35 years experience working on bikes . I had just wanted it checked out for an up coming charity bike ride and just needed a check off sheet filled out , but he held onto my bike a week without even looking at it . Now , I was trying to do the right thing as I could have just filled the sheet out myself .I went to a different bike shop and they took care of me that same day . I got upset at a number of things ,first he wasted a week of my time , second supervising 3 teenagers does not impress me , third I built my first bicycle from junk bikes when I was 12 years old and still do work on them , and fourth I have worked as a maintenance mechanic in heavy industry for almost 30 years in many different plants on a lot more complicated equipment then this joker has even seen .
Most bike shops will at least try to help and if they can't they will tell you so and most of the time tell you why , don't have the parts , no time , "darn , I just have no idea what's wrong ." Most of the time I let the mechanics at the shops work on my bike so I don't have to buy a lot of specialized tools and store them as I do wood working and carving as a hobby . I don't think sawdust works well in the bearings on bicycles , maybe that's just me . As to assuming I have and still work around hazardous " stuff " explosive , flammable , poisonous , acid , caustic ,and known carcinogens . I do not like to assume anything . How's that for way more than you really wanted to know . As you can see I am not impressed by smoke and mirrors .
What kind of handlebars do you like I have gotten away from the drop bars ?
Razor