Join Date: Oct 2007
Location: West Yorkshire, United Kingdom
Mentioned: 1 Post(s)
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Quoted: 80 Post(s)
If you bought it from a shop, most will give a free service after a month or so, cables will normally stretch from new and hence the need for service / adjustment.
Have a look on the Park tools site, there are plenty of guides there for setting up the FD & RD which will resolve your issues.
For the rain, if bikes broke in the rain, no one would ride them, the rain did not cause the (non) issues you are having; for distance, 400 miles in 4 days is probably more than many bikes see in there lifetime, so would consider it a lot.