Originally Posted by chaka433
could be chain lube, silicon base or just weather change cold asphalt and tire. its just every time i pull my bike from a shop theres always something werd.
Might wanna start doing work yourself.
I'm not no mechanic, but if everything is new, I don't know why they put the wheel all the way back. I put mine at the front, so as the chain loosens over time, you then progressively move the wheel back to lessen the slack.
With your wheel already adjusted to the furthest back it can go, when your chain begins to loosen, you'll have to break the chain, adjust the link count and add a master link. Seems like too much work, I personally think you should find a different shop, or do it yourself. Chain & Sprockets aren't a hard job.