I had my first proper bike ride yesterday,about 15 km on flat terra. Bike was comfortable and effortless. However when we returned to my daughter’s house her partner was there, who is a real bike expert. He noticed that a bolt was missing . He then noticed that another part was wrongly connected. That resulted in the back wheel not being safely fitted. He did a complete overhaul, fastened all the fittings and gave it a total check. He said it was just as well I rode the bike cautiously and at moderate speed. I am not sorry I bought this particular bike but am extremely disappointed in the bad workmanship. I could have ended up with a serious accident.