I bought a new bike, a trek MTB marlin 7, and for the first moment (a week later) it started having issues, it was clicking awfully, the pedals broke, the brakes were rubbing, the mudguard broke which I noticed they attached with little plastic things and holes drilled; I got it mostly fixed but clicking didn't go away, I brought the bike around 6 times to the bike shop for them to fix the horrible clicking that came from the back, every time it was a temporary fix, then they said they changed the freewheel and it went away and I thought I finally got a breath, guess what the clicking is coming back, this time creaking too, I don't want to go for seventh time to the bike shop, I just would like to get rid of the bike at this point and have my money back. I honestly don't know if this is normal, this is my first bike, any advice?...
Your new bike doesn't work properly: of course this isn't normal.
At this point, your best option is surely to return the bike to the shop for a full refund and buy a new bike from somewhere else. If there are no other Trek dealerships nearby, buy another brand.
You exact legal rights in this situation will depend on where in the world you are but I would expect that the right to return faulty goods for a full refund should be pretty much universal. One would hope that the shop will just accept your request for a refund. If they don't, you'll need to find out about your rights, and maybe ask on Law Stack Exchange.
Depending on the place where you live, you might have the possibility to return your purchase and have your money back.
Nevertheless it would be a good customer policy for the dealer and the manufacturer to have a happy customer: I would try contacting both and explaining the issue makes you really unhappy with the choice you have done.
If it is due to poor assembly, changing shop is probably the best option, but on that the manufacturer can provide better advice.
a lot shop can't find the problem, I did. it's mostly from BB/pedals thread. You can tell your shop to do the following:
- you can listen carefully, to see if the clicking is from rear hub, if so, the position of that clicks is very clear.
- if you can't quite point out the clicking position, it has a big chance those clicks are coming from the BB/pedals.
how to diagnose and fix:
- change the BB with a know good BB.
- if good luck, its the cheap BB thread is not aligned, it should never bother you again.
- if bad luck, the frame BB thread is not aligned, you are going to get a new frame.
- same thing as BB, just do the same thing with both cranks and pedal.
the thing is, the frame and crank tube transmits clicking sound to all over the frame, so you can't pinpoint the problem, you have to try them one by one. PS: if you don't change the broken part quick, in time, it will damage good threads from on other side.